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// SPDX-License-Identifier: GPL-3.0-or-later
#include <sys/resource.h>
#include "ebpf.h"
#include "ebpf_vfs.h"
static char *vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_END] = { "delete", "read", "write",
"fsync", "open", "create" };
static char *vfs_id_names[NETDATA_KEY_PUBLISH_VFS_END] = { "vfs_unlink", "vfs_read", "vfs_write",
"vfs_fsync", "vfs_open", "vfs_create"};
static netdata_idx_t *vfs_hash_values = NULL;
static netdata_syscall_stat_t vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_END];
static netdata_publish_syscall_t vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_END];
netdata_publish_vfs_t **vfs_pid = NULL;
netdata_publish_vfs_t *vfs_vector = NULL;
static ebpf_local_maps_t vfs_maps[] = {{.name = "tbl_vfs_pid", .internal_input = ND_EBPF_DEFAULT_PID_SIZE,
.user_input = 0, .type = NETDATA_EBPF_MAP_RESIZABLE | NETDATA_EBPF_MAP_PID,
.map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED},
{.name = "tbl_vfs_stats", .internal_input = NETDATA_VFS_COUNTER,
.user_input = 0, .type = NETDATA_EBPF_MAP_STATIC,
.map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED},
{.name = "vfs_ctrl", .internal_input = NETDATA_CONTROLLER_END,
.user_input = 0,
.type = NETDATA_EBPF_MAP_CONTROLLER,
.map_fd = ND_EBPF_MAP_FD_NOT_INITIALIZED},
{.name = NULL, .internal_input = 0, .user_input = 0}};
struct config vfs_config = { .first_section = NULL,
.last_section = NULL,
.mutex = NETDATA_MUTEX_INITIALIZER,
.index = { .avl_tree = { .root = NULL, .compar = appconfig_section_compare },
.rwlock = AVL_LOCK_INITIALIZER } };
static struct bpf_object *objects = NULL;
static struct bpf_link **probe_links = NULL;
struct netdata_static_thread vfs_threads = {"VFS KERNEL",
NULL, NULL, 1, NULL,
NULL, NULL};
static int read_thread_closed = 1;
/*****************************************************************
*
* FUNCTIONS TO CLOSE THE THREAD
*
*****************************************************************/
/**
* Clean PID structures
*
* Clean the allocated structures.
*/
void clean_vfs_pid_structures() {
struct pid_stat *pids = root_of_pids;
while (pids) {
freez(vfs_pid[pids->pid]);
pids = pids->next;
}
}
/**
* Clean up the main thread.
*
* @param ptr thread data.
**/
static void ebpf_vfs_cleanup(void *ptr)
{
ebpf_module_t *em = (ebpf_module_t *)ptr;
if (!em->enabled)
return;
heartbeat_t hb;
heartbeat_init(&hb);
uint32_t tick = 50 * USEC_PER_MS;
while (!read_thread_closed) {
usec_t dt = heartbeat_next(&hb, tick);
UNUSED(dt);
}
freez(vfs_hash_values);
freez(vfs_vector);
if (probe_links) {
struct bpf_program *prog;
size_t i = 0 ;
bpf_object__for_each_program(prog, objects) {
bpf_link__destroy(probe_links[i]);
i++;
}
bpf_object__close(objects);
}
}
/*****************************************************************
*
* FUNCTIONS WITH THE MAIN LOOP
*
*****************************************************************/
/**
* Send data to Netdata calling auxiliar functions.
*
* @param em the structure with thread information
*/
static void ebpf_vfs_send_data(ebpf_module_t *em)
{
netdata_publish_vfs_common_t pvc;
pvc.write = (long)vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_WRITE].bytes;
pvc.read = (long)vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_READ].bytes;
write_count_chart(NETDATA_VFS_FILE_CLEAN_COUNT, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK], 1);
write_count_chart(NETDATA_VFS_FILE_IO_COUNT, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2);
if (em->mode < MODE_ENTRY) {
write_err_chart(NETDATA_VFS_FILE_ERR_COUNT, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ], 2);
}
write_io_chart(NETDATA_VFS_IO_FILE_BYTES, NETDATA_FILESYSTEM_FAMILY, vfs_id_names[NETDATA_KEY_PUBLISH_VFS_WRITE],
(long long)pvc.write, vfs_id_names[NETDATA_KEY_PUBLISH_VFS_READ], (long long)pvc.read);
write_count_chart(NETDATA_VFS_FSYNC, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1);
if (em->mode < MODE_ENTRY) {
write_err_chart(NETDATA_VFS_FSYNC_ERR, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC], 1);
}
write_count_chart(NETDATA_VFS_OPEN, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1);
if (em->mode < MODE_ENTRY) {
write_err_chart(NETDATA_VFS_OPEN_ERR, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN], 1);
}
write_count_chart(NETDATA_VFS_CREATE, NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE], 1);
if (em->mode < MODE_ENTRY) {
write_err_chart(
NETDATA_VFS_CREATE_ERR,
NETDATA_FILESYSTEM_FAMILY,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE],
1);
}
}
/**
* Read the hash table and store data to allocated vectors.
*/
static void read_global_table()
{
uint64_t idx;
netdata_idx_t res[NETDATA_VFS_COUNTER];
netdata_idx_t *val = vfs_hash_values;
int fd = vfs_maps[NETDATA_VFS_ALL].map_fd;
for (idx = 0; idx < NETDATA_VFS_COUNTER; idx++) {
uint64_t total = 0;
if (!bpf_map_lookup_elem(fd, &idx, val)) {
int i;
int end = ebpf_nprocs;
for (i = 0; i < end; i++)
total += val[i];
}
res[idx] = total;
}
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].ncall = res[NETDATA_KEY_CALLS_VFS_UNLINK];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].ncall = res[NETDATA_KEY_CALLS_VFS_READ] +
res[NETDATA_KEY_CALLS_VFS_READV];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].ncall = res[NETDATA_KEY_CALLS_VFS_WRITE] +
res[NETDATA_KEY_CALLS_VFS_WRITEV];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].ncall = res[NETDATA_KEY_CALLS_VFS_FSYNC];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].ncall = res[NETDATA_KEY_CALLS_VFS_OPEN];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].ncall = res[NETDATA_KEY_CALLS_VFS_CREATE];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].nerr = res[NETDATA_KEY_ERROR_VFS_UNLINK];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].nerr = res[NETDATA_KEY_ERROR_VFS_READ] +
res[NETDATA_KEY_ERROR_VFS_READV];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].nerr = res[NETDATA_KEY_ERROR_VFS_WRITE] +
res[NETDATA_KEY_ERROR_VFS_WRITEV];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].nerr = res[NETDATA_KEY_ERROR_VFS_FSYNC];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].nerr = res[NETDATA_KEY_ERROR_VFS_OPEN];
vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].nerr = res[NETDATA_KEY_ERROR_VFS_CREATE];
vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_WRITE].bytes = (uint64_t)res[NETDATA_KEY_BYTES_VFS_WRITE] +
(uint64_t)res[NETDATA_KEY_BYTES_VFS_WRITEV];
vfs_aggregated_data[NETDATA_KEY_PUBLISH_VFS_READ].bytes = (uint64_t)res[NETDATA_KEY_BYTES_VFS_READ] +
(uint64_t)res[NETDATA_KEY_BYTES_VFS_READV];
}
/**
* Sum PIDs
*
* Sum values for all targets.
*
* @param swap output structure
* @param root link list with structure to be used
*/
static void ebpf_vfs_sum_pids(netdata_publish_vfs_t *vfs, struct pid_on_target *root)
{
netdata_publish_vfs_t accumulator;
memset(&accumulator, 0, sizeof(accumulator));
while (root) {
int32_t pid = root->pid;
netdata_publish_vfs_t *w = vfs_pid[pid];
if (w) {
accumulator.write_call += w->write_call;
accumulator.writev_call += w->writev_call;
accumulator.read_call += w->read_call;
accumulator.readv_call += w->readv_call;
accumulator.unlink_call += w->unlink_call;
accumulator.fsync_call += w->fsync_call;
accumulator.open_call += w->open_call;
accumulator.create_call += w->create_call;
accumulator.write_bytes += w->write_bytes;
accumulator.writev_bytes += w->writev_bytes;
accumulator.read_bytes += w->read_bytes;
accumulator.readv_bytes += w->readv_bytes;
accumulator.write_err += w->write_err;
accumulator.writev_err += w->writev_err;
accumulator.read_err += w->read_err;
accumulator.readv_err += w->readv_err;
accumulator.unlink_err += w->unlink_err;
accumulator.fsync_err += w->fsync_err;
accumulator.open_err += w->open_err;
accumulator.create_err += w->create_err;
}
root = root->next;
}
// These conditions were added, because we are using incremental algorithm
vfs->write_call = (accumulator.write_call >= vfs->write_call) ? accumulator.write_call : vfs->write_call;
vfs->writev_call = (accumulator.writev_call >= vfs->writev_call) ? accumulator.writev_call : vfs->writev_call;
vfs->read_call = (accumulator.read_call >= vfs->read_call) ? accumulator.read_call : vfs->read_call;
vfs->readv_call = (accumulator.readv_call >= vfs->readv_call) ? accumulator.readv_call : vfs->readv_call;
vfs->unlink_call = (accumulator.unlink_call >= vfs->unlink_call) ? accumulator.unlink_call : vfs->unlink_call;
vfs->fsync_call = (accumulator.fsync_call >= vfs->fsync_call) ? accumulator.fsync_call : vfs->fsync_call;
vfs->open_call = (accumulator.open_call >= vfs->open_call) ? accumulator.open_call : vfs->open_call;
vfs->create_call = (accumulator.create_call >= vfs->create_call) ? accumulator.create_call : vfs->create_call;
vfs->write_bytes = (accumulator.write_bytes >= vfs->write_bytes) ? accumulator.write_bytes : vfs->write_bytes;
vfs->writev_bytes = (accumulator.writev_bytes >= vfs->writev_bytes) ? accumulator.writev_bytes : vfs->writev_bytes;
vfs->read_bytes = (accumulator.read_bytes >= vfs->read_bytes) ? accumulator.read_bytes : vfs->read_bytes;
vfs->readv_bytes = (accumulator.readv_bytes >= vfs->readv_bytes) ? accumulator.readv_bytes : vfs->readv_bytes;
vfs->write_err = (accumulator.write_err >= vfs->write_err) ? accumulator.write_err : vfs->write_err;
vfs->writev_err = (accumulator.writev_err >= vfs->writev_err) ? accumulator.writev_err : vfs->writev_err;
vfs->read_err = (accumulator.read_err >= vfs->read_err) ? accumulator.read_err : vfs->read_err;
vfs->readv_err = (accumulator.readv_err >= vfs->readv_err) ? accumulator.readv_err : vfs->readv_err;
vfs->unlink_err = (accumulator.unlink_err >= vfs->unlink_err) ? accumulator.unlink_err : vfs->unlink_err;
vfs->fsync_err = (accumulator.fsync_err >= vfs->fsync_err) ? accumulator.fsync_err : vfs->fsync_err;
vfs->open_err = (accumulator.open_err >= vfs->open_err) ? accumulator.open_err : vfs->open_err;
vfs->create_err = (accumulator.create_err >= vfs->create_err) ? accumulator.create_err : vfs->create_err;
}
/**
* Send data to Netdata calling auxiliar functions.
*
* @param em the structure with thread information
* @param root the target list.
*/
void ebpf_vfs_send_apps_data(ebpf_module_t *em, struct target *root)
{
struct target *w;
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
ebpf_vfs_sum_pids(&w->vfs, w->root_pid);
}
}
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_FILE_DELETED);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.unlink_call);
}
}
write_end_chart();
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.write_call + w->vfs.writev_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.write_err + w->vfs.writev_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.read_call + w->vfs.readv_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.read_err + w->vfs.readv_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.write_bytes + w->vfs.writev_bytes);
}
}
write_end_chart();
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_BYTES);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.read_bytes + w->vfs.readv_bytes);
}
}
write_end_chart();
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.fsync_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.fsync_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.open_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.open_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.create_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_APPS_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR);
for (w = root; w; w = w->next) {
if (unlikely(w->exposed && w->processes)) {
write_chart_dimension(w->name, w->vfs.create_err);
}
}
write_end_chart();
}
}
/**
* Apps Accumulator
*
* Sum all values read from kernel and store in the first address.
*
* @param out the vector with read values.
*/
static void vfs_apps_accumulator(netdata_publish_vfs_t *out)
{
int i, end = (running_on_kernel >= NETDATA_KERNEL_V4_15) ? ebpf_nprocs : 1;
netdata_publish_vfs_t *total = &out[0];
for (i = 1; i < end; i++) {
netdata_publish_vfs_t *w = &out[i];
total->write_call += w->write_call;
total->writev_call += w->writev_call;
total->read_call += w->read_call;
total->readv_call += w->readv_call;
total->unlink_call += w->unlink_call;
total->write_bytes += w->write_bytes;
total->writev_bytes += w->writev_bytes;
total->read_bytes += w->read_bytes;
total->readv_bytes += w->readv_bytes;
total->write_err += w->write_err;
total->writev_err += w->writev_err;
total->read_err += w->read_err;
total->readv_err += w->readv_err;
total->unlink_err += w->unlink_err;
}
}
/**
* Fill PID
*
* Fill PID structures
*
* @param current_pid pid that we are collecting data
* @param out values read from hash tables;
*/
static void vfs_fill_pid(uint32_t current_pid, netdata_publish_vfs_t *publish)
{
netdata_publish_vfs_t *curr = vfs_pid[current_pid];
if (!curr) {
curr = callocz(1, sizeof(netdata_publish_vfs_t));
vfs_pid[current_pid] = curr;
}
memcpy(curr, &publish[0], sizeof(netdata_publish_vfs_t));
}
/**
* Read the hash table and store data to allocated vectors.
*/
static void ebpf_vfs_read_apps()
{
struct pid_stat *pids = root_of_pids;
netdata_publish_vfs_t *vv = vfs_vector;
int fd = vfs_maps[NETDATA_VFS_PID].map_fd;
size_t length = sizeof(netdata_publish_vfs_t) * ebpf_nprocs;
while (pids) {
uint32_t key = pids->pid;
if (bpf_map_lookup_elem(fd, &key, vv)) {
pids = pids->next;
continue;
}
vfs_apps_accumulator(vv);
vfs_fill_pid(key, vv);
// We are cleaning to avoid passing data read from one process to other.
memset(vv, 0, length);
pids = pids->next;
}
}
/**
* Update cgroup
*
* Update cgroup data based in
*/
static void read_update_vfs_cgroup()
{
ebpf_cgroup_target_t *ect ;
netdata_publish_vfs_t *vv = vfs_vector;
int fd = vfs_maps[NETDATA_VFS_PID].map_fd;
size_t length = sizeof(netdata_publish_vfs_t) * ebpf_nprocs;
pthread_mutex_lock(&mutex_cgroup_shm);
for (ect = ebpf_cgroup_pids; ect; ect = ect->next) {
struct pid_on_target2 *pids;
for (pids = ect->pids; pids; pids = pids->next) {
int pid = pids->pid;
netdata_publish_vfs_t *out = &pids->vfs;
if (likely(vfs_pid) && vfs_pid[pid]) {
netdata_publish_vfs_t *in = vfs_pid[pid];
memcpy(out, in, sizeof(netdata_publish_vfs_t));
} else {
memset(vv, 0, length);
if (!bpf_map_lookup_elem(fd, &pid, vv)) {
vfs_apps_accumulator(vv);
memcpy(out, vv, sizeof(netdata_publish_vfs_t));
}
}
}
}
pthread_mutex_unlock(&mutex_cgroup_shm);
}
/**
* VFS read hash
*
* This is the thread callback.
* This thread is necessary, because we cannot freeze the whole plugin to read the data.
*
* @param ptr It is a NULL value for this thread.
*
* @return It always returns NULL.
*/
void *ebpf_vfs_read_hash(void *ptr)
{
read_thread_closed = 0;
heartbeat_t hb;
heartbeat_init(&hb);
ebpf_module_t *em = (ebpf_module_t *)ptr;
usec_t step = NETDATA_LATENCY_VFS_SLEEP_MS * em->update_every;
while (!close_ebpf_plugin) {
usec_t dt = heartbeat_next(&hb, step);
(void)dt;
read_global_table();
}
read_thread_closed = 1;
return NULL;
}
/**
* Sum PIDs
*
* Sum values for all targets.
*
* @param vfs structure used to store data
* @param pids input data
*/
static void ebpf_vfs_sum_cgroup_pids(netdata_publish_vfs_t *vfs, struct pid_on_target2 *pids)
{
netdata_publish_vfs_t accumulator;
memset(&accumulator, 0, sizeof(accumulator));
while (pids) {
netdata_publish_vfs_t *w = &pids->vfs;
accumulator.write_call += w->write_call;
accumulator.writev_call += w->writev_call;
accumulator.read_call += w->read_call;
accumulator.readv_call += w->readv_call;
accumulator.unlink_call += w->unlink_call;
accumulator.fsync_call += w->fsync_call;
accumulator.open_call += w->open_call;
accumulator.create_call += w->create_call;
accumulator.write_bytes += w->write_bytes;
accumulator.writev_bytes += w->writev_bytes;
accumulator.read_bytes += w->read_bytes;
accumulator.readv_bytes += w->readv_bytes;
accumulator.write_err += w->write_err;
accumulator.writev_err += w->writev_err;
accumulator.read_err += w->read_err;
accumulator.readv_err += w->readv_err;
accumulator.unlink_err += w->unlink_err;
accumulator.fsync_err += w->fsync_err;
accumulator.open_err += w->open_err;
accumulator.create_err += w->create_err;
pids = pids->next;
}
// These conditions were added, because we are using incremental algorithm
vfs->write_call = (accumulator.write_call >= vfs->write_call) ? accumulator.write_call : vfs->write_call;
vfs->writev_call = (accumulator.writev_call >= vfs->writev_call) ? accumulator.writev_call : vfs->writev_call;
vfs->read_call = (accumulator.read_call >= vfs->read_call) ? accumulator.read_call : vfs->read_call;
vfs->readv_call = (accumulator.readv_call >= vfs->readv_call) ? accumulator.readv_call : vfs->readv_call;
vfs->unlink_call = (accumulator.unlink_call >= vfs->unlink_call) ? accumulator.unlink_call : vfs->unlink_call;
vfs->fsync_call = (accumulator.fsync_call >= vfs->fsync_call) ? accumulator.fsync_call : vfs->fsync_call;
vfs->open_call = (accumulator.open_call >= vfs->open_call) ? accumulator.open_call : vfs->open_call;
vfs->create_call = (accumulator.create_call >= vfs->create_call) ? accumulator.create_call : vfs->create_call;
vfs->write_bytes = (accumulator.write_bytes >= vfs->write_bytes) ? accumulator.write_bytes : vfs->write_bytes;
vfs->writev_bytes = (accumulator.writev_bytes >= vfs->writev_bytes) ? accumulator.writev_bytes : vfs->writev_bytes;
vfs->read_bytes = (accumulator.read_bytes >= vfs->read_bytes) ? accumulator.read_bytes : vfs->read_bytes;
vfs->readv_bytes = (accumulator.readv_bytes >= vfs->readv_bytes) ? accumulator.readv_bytes : vfs->readv_bytes;
vfs->write_err = (accumulator.write_err >= vfs->write_err) ? accumulator.write_err : vfs->write_err;
vfs->writev_err = (accumulator.writev_err >= vfs->writev_err) ? accumulator.writev_err : vfs->writev_err;
vfs->read_err = (accumulator.read_err >= vfs->read_err) ? accumulator.read_err : vfs->read_err;
vfs->readv_err = (accumulator.readv_err >= vfs->readv_err) ? accumulator.readv_err : vfs->readv_err;
vfs->unlink_err = (accumulator.unlink_err >= vfs->unlink_err) ? accumulator.unlink_err : vfs->unlink_err;
vfs->fsync_err = (accumulator.fsync_err >= vfs->fsync_err) ? accumulator.fsync_err : vfs->fsync_err;
vfs->open_err = (accumulator.open_err >= vfs->open_err) ? accumulator.open_err : vfs->open_err;
vfs->create_err = (accumulator.create_err >= vfs->create_err) ? accumulator.create_err : vfs->create_err;
}
/**
* Create specific VFS charts
*
* Create charts for cgroup/application.
*
* @param type the chart type.
* @param em the main thread structure.
*/
static void ebpf_create_specific_vfs_charts(char *type, ebpf_module_t *em)
{
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED,"Files deleted",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_UNLINK_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5500,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5501,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_ERROR_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5502,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5503,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_ERROR_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5504,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk",
EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_WRITE_BYTES_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5505,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk",
EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP, NETDATA_CGROUP_VFS_READ_BYTES_CONTEXT,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5506,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls for <code>vfs_fsync</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NULL,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5507,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NULL,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5508,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls for <code>vfs_open</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NULL,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5509,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NULL,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5510,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
}
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls for <code>vfs_create</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NULL,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5511,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP, NULL,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5512,
ebpf_create_global_dimension, &vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_SWAP);
}
}
/**
* Obsolete specific VFS charts
*
* Obsolete charts for cgroup/application.
*
* @param type the chart type.
* @param em the main thread structure.
*/
static void ebpf_obsolete_specific_vfs_charts(char *type, ebpf_module_t *em)
{
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_FILE_DELETED, "Files deleted",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_UNLINK_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5500, em->update_every);
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5501, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_ERROR_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5502, em->update_every);
}
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5503, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_ERROR_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5504, em->update_every);
}
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk",
EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_WRITE_BYTES_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5505, em->update_every);
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk",
EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NETDATA_CGROUP_VFS_READ_BYTES_CONTEXT,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5506, em->update_every);
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls for <code>vfs_fsync</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NULL,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5507, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NULL,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5508, em->update_every);
}
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls for <code>vfs_open</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NULL,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5509, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NULL,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5510, em->update_every);
}
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls for <code>vfs_create</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NULL,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5511, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_write_chart_obsolete(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_LINE, NULL,
NETDATA_CHART_PRIO_CGROUPS_CONTAINERS + 5512, em->update_every);
}
}
/*
* Send specific VFS data
*
* Send data for specific cgroup/apps.
*
* @param type chart type
* @param values structure with values that will be sent to netdata
*/
static void ebpf_send_specific_vfs_data(char *type, netdata_publish_vfs_t *values, ebpf_module_t *em)
{
write_begin_chart(type, NETDATA_SYSCALL_APPS_FILE_DELETED);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK].name, (long long)values->unlink_call);
write_end_chart();
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name,
(long long)values->write_call + (long long)values->writev_call);
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name,
(long long)values->write_err + (long long)values->writev_err);
write_end_chart();
}
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name,
(long long)values->read_call + (long long)values->readv_call);
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name,
(long long)values->read_err + (long long)values->readv_err);
write_end_chart();
}
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_WRITE].name,
(long long)values->write_bytes + (long long)values->writev_bytes);
write_end_chart();
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_READ_BYTES);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ].name,
(long long)values->read_bytes + (long long)values->readv_bytes);
write_end_chart();
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].name,
(long long)values->fsync_call);
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC].name,
(long long)values->fsync_err);
write_end_chart();
}
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].name,
(long long)values->open_call);
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN].name,
(long long)values->open_err);
write_end_chart();
}
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].name,
(long long)values->create_call);
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(type, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR);
write_chart_dimension(vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE].name,
(long long)values->create_err);
write_end_chart();
}
}
/**
* Create Systemd Socket Charts
*
* Create charts when systemd is enabled
*
* @param em the main collector structure
**/
static void ebpf_create_systemd_vfs_charts(ebpf_module_t *em)
{
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_FILE_DELETED, "Files deleted",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20065,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_UNLINK_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS, "Write to disk",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20066,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR, "Fails to write",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20067,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
NETDATA_SYSTEMD_VFS_WRITE_ERROR_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
}
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_CALLS, "Read from disk",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20068,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR, "Fails to read",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20069,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
NETDATA_SYSTEMD_VFS_READ_ERROR_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
}
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES, "Bytes written on disk",
EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20070,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_WRITE_BYTES_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_READ_BYTES, "Bytes read from disk",
EBPF_COMMON_DIMENSION_BYTES, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20071,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NETDATA_SYSTEMD_VFS_READ_BYTES_CONTEXT,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_FSYNC, "Calls to <code>vfs_fsync</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20072,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NULL,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR, "Sync error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20073,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NULL,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
}
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_OPEN, "Calls to <code>vfs_open</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20074,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NULL,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR, "Open error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20075,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NULL,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
}
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_CREATE, "Calls to <code>vfs_create</code>",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20076,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NULL,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_systemd(NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR, "Create error",
EBPF_COMMON_DIMENSION_CALL, NETDATA_VFS_CGROUP_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED, 20077,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX], NULL,
NETDATA_EBPF_MODULE_NAME_VFS, em->update_every);
}
}
/**
* Send Systemd charts
*
* Send collected data to Netdata.
*
* @param em the main collector structure
*
* @return It returns the status for chart creation, if it is necessary to remove a specific dimension, zero is returned
* otherwise function returns 1 to avoid chart recreation
*/
static int ebpf_send_systemd_vfs_charts(ebpf_module_t *em)
{
int ret = 1;
ebpf_cgroup_target_t *ect;
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_FILE_DELETED);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.unlink_call);
} else
ret = 0;
}
write_end_chart();
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_call +
ect->publish_systemd_vfs.writev_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_err +
ect->publish_systemd_vfs.writev_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_call +
ect->publish_systemd_vfs.readv_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_err +
ect->publish_systemd_vfs.readv_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.write_bytes +
ect->publish_systemd_vfs.writev_bytes);
}
}
write_end_chart();
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_READ_BYTES);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.read_bytes +
ect->publish_systemd_vfs.readv_bytes);
}
}
write_end_chart();
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.fsync_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.fsync_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.open_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.open_err);
}
}
write_end_chart();
}
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.create_call);
}
}
write_end_chart();
if (em->mode < MODE_ENTRY) {
write_begin_chart(NETDATA_SERVICE_FAMILY, NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR);
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (unlikely(ect->systemd) && unlikely(ect->updated)) {
write_chart_dimension(ect->name, ect->publish_systemd_vfs.create_err);
}
}
write_end_chart();
}
return ret;
}
/**
* Send data to Netdata calling auxiliar functions.
*
* @param em the main collector structure
*/
static void ebpf_vfs_send_cgroup_data(ebpf_module_t *em)
{
if (!ebpf_cgroup_pids)
return;
pthread_mutex_lock(&mutex_cgroup_shm);
ebpf_cgroup_target_t *ect;
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
ebpf_vfs_sum_cgroup_pids(&ect->publish_systemd_vfs, ect->pids);
}
int has_systemd = shm_ebpf_cgroup.header->systemd_enabled;
if (has_systemd) {
static int systemd_charts = 0;
if (!systemd_charts) {
ebpf_create_systemd_vfs_charts(em);
systemd_charts = 1;
}
systemd_charts = ebpf_send_systemd_vfs_charts(em);
}
for (ect = ebpf_cgroup_pids; ect ; ect = ect->next) {
if (ect->systemd)
continue;
if (!(ect->flags & NETDATA_EBPF_CGROUP_HAS_VFS_CHART) && ect->updated) {
ebpf_create_specific_vfs_charts(ect->name, em);
ect->flags |= NETDATA_EBPF_CGROUP_HAS_VFS_CHART;
}
if (ect->flags & NETDATA_EBPF_CGROUP_HAS_VFS_CHART) {
if (ect->updated) {
ebpf_send_specific_vfs_data(ect->name, &ect->publish_systemd_vfs, em);
} else {
ebpf_obsolete_specific_vfs_charts(ect->name, em);
ect->flags &= ~NETDATA_EBPF_CGROUP_HAS_VFS_CHART;
}
}
}
pthread_mutex_unlock(&mutex_cgroup_shm);
}
/**
* Main loop for this collector.
*
* @param step the number of microseconds used with heart beat
* @param em the structure with thread information
*/
static void vfs_collector(ebpf_module_t *em)
{
vfs_threads.thread = mallocz(sizeof(netdata_thread_t));
vfs_threads.start_routine = ebpf_vfs_read_hash;
netdata_thread_create(vfs_threads.thread, vfs_threads.name, NETDATA_THREAD_OPTION_JOINABLE,
ebpf_vfs_read_hash, em);
int apps = em->apps_charts;
int cgroups = em->cgroup_charts;
int update_every = em->update_every;
int counter = update_every - 1;
while (!close_ebpf_plugin) {
pthread_mutex_lock(&collect_data_mutex);
pthread_cond_wait(&collect_data_cond_var, &collect_data_mutex);
if (++counter == update_every) {
counter = 0;
if (apps)
ebpf_vfs_read_apps();
if (cgroups)
read_update_vfs_cgroup();
pthread_mutex_lock(&lock);
ebpf_vfs_send_data(em);
fflush(stdout);
if (apps)
ebpf_vfs_send_apps_data(em, apps_groups_root_target);
if (cgroups)
ebpf_vfs_send_cgroup_data(em);
pthread_mutex_unlock(&lock);
}
pthread_mutex_unlock(&collect_data_mutex);
}
}
/*****************************************************************
*
* FUNCTIONS TO CREATE CHARTS
*
*****************************************************************/
/**
* Create IO chart
*
* @param family the chart family
* @param name the chart name
* @param axis the axis label
* @param web the group name used to attach the chart on dashboard
* @param order the order number of the specified chart
* @param algorithm the algorithm used to make the charts.
* @param update_every value to overwrite the update frequency set by the server.
*/
static void ebpf_create_io_chart(char *family, char *name, char *axis, char *web,
int order, int algorithm, int update_every)
{
printf("CHART %s.%s '' 'Bytes written and read' '%s' '%s' '' line %d %d '' 'ebpf.plugin' 'filesystem'\n",
family,
name,
axis,
web,
order,
update_every);
printf("DIMENSION %s %s %s 1 1\n",
vfs_id_names[NETDATA_KEY_PUBLISH_VFS_READ],
vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_READ],
ebpf_algorithms[algorithm]);
printf("DIMENSION %s %s %s -1 1\n",
vfs_id_names[NETDATA_KEY_PUBLISH_VFS_WRITE],
vfs_dimension_names[NETDATA_KEY_PUBLISH_VFS_WRITE],
ebpf_algorithms[algorithm]);
}
/**
* Create global charts
*
* Call ebpf_create_chart to create the charts for the collector.
*
* @param em a pointer to the structure with the default values.
*/
static void ebpf_create_global_charts(ebpf_module_t *em)
{
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FILE_CLEAN_COUNT,
"Remove files",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_CLEAN,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_UNLINK],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FILE_IO_COUNT,
"Calls to IO",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_COUNT,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ],
2, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
ebpf_create_io_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_IO_FILE_BYTES, EBPF_COMMON_DIMENSION_BYTES,
NETDATA_VFS_GROUP,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_BYTES,
NETDATA_EBPF_INCREMENTAL_IDX, em->update_every);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FILE_ERR_COUNT,
"Fails to write or read",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EBYTES,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_READ],
2, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FSYNC,
"Calls for <code>vfs_fsync</code>",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_FSYNC,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_FSYNC_ERR,
"Fails to synchronize",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EFSYNC,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_FSYNC],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_OPEN,
"Calls for <code>vfs_open</code>",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_OPEN,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_OPEN_ERR,
"Fails to open a file",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_EOPEN,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_OPEN],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_CREATE,
"Calls for <code>vfs_create</code>",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_CREATE,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_chart(NETDATA_FILESYSTEM_FAMILY,
NETDATA_VFS_CREATE_ERR,
"Fails to create a file.",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NULL,
NETDATA_EBPF_CHART_TYPE_LINE,
NETDATA_CHART_PRIO_FILESYSTEM_VFS_IO_ECREATE,
ebpf_create_global_dimension,
&vfs_publish_aggregated[NETDATA_KEY_PUBLISH_VFS_CREATE],
1, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
}
/**
* Create process apps charts
*
* Call ebpf_create_chart to create the charts on apps submenu.
*
* @param em a pointer to the structure with the default values.
* @param ptr a pointer for the targets.
**/
void ebpf_vfs_create_apps_charts(struct ebpf_module *em, void *ptr)
{
struct target *root = ptr;
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_FILE_DELETED,
"Files deleted",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20065,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS,
"Write to disk",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20066,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_WRITE_CALLS_ERROR,
"Fails to write",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20067,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_READ_CALLS,
"Read from disk",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20068,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_READ_CALLS_ERROR,
"Fails to read",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20069,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_WRITE_BYTES,
"Bytes written on disk", EBPF_COMMON_DIMENSION_BYTES,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20070,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_READ_BYTES,
"Bytes read from disk", EBPF_COMMON_DIMENSION_BYTES,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20071,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_FSYNC,
"Calls for <code>vfs_fsync</code>", EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20072,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_FSYNC_CALLS_ERROR,
"Sync error",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20073,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_OPEN,
"Calls for <code>vfs_open</code>", EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20074,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_OPEN_CALLS_ERROR,
"Open error",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20075,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_CREATE,
"Calls for <code>vfs_create</code>", EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20076,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
if (em->mode < MODE_ENTRY) {
ebpf_create_charts_on_apps(NETDATA_SYSCALL_APPS_VFS_CREATE_CALLS_ERROR,
"Create error",
EBPF_COMMON_DIMENSION_CALL,
NETDATA_VFS_GROUP,
NETDATA_EBPF_CHART_TYPE_STACKED,
20077,
ebpf_algorithms[NETDATA_EBPF_INCREMENTAL_IDX],
root, em->update_every, NETDATA_EBPF_MODULE_NAME_VFS);
}
}
/*****************************************************************
*
* FUNCTIONS TO START THREAD
*
*****************************************************************/
/**
* Allocate vectors used with this thread.
* We are not testing the return, because callocz does this and shutdown the software
* case it was not possible to allocate.
*
* @param apps is apps enabled?
*/
static void ebpf_vfs_allocate_global_vectors(int apps)
{
memset(vfs_aggregated_data, 0, sizeof(vfs_aggregated_data));
memset(vfs_publish_aggregated, 0, sizeof(vfs_publish_aggregated));
vfs_hash_values = callocz(ebpf_nprocs, sizeof(netdata_idx_t));
vfs_vector = callocz(ebpf_nprocs, sizeof(netdata_publish_vfs_t));
if (apps)
vfs_pid = callocz((size_t)pid_max, sizeof(netdata_publish_vfs_t *));
}
/*****************************************************************
*
* EBPF VFS THREAD
*
*****************************************************************/
/**
* Process thread
*
* Thread used to generate process charts.
*
* @param ptr a pointer to `struct ebpf_module`
*
* @return It always return NULL
*/
void *ebpf_vfs_thread(void *ptr)
{
netdata_thread_cleanup_push(ebpf_vfs_cleanup, ptr);
ebpf_module_t *em = (ebpf_module_t *)ptr;
em->maps = vfs_maps;
ebpf_update_pid_table(&vfs_maps[NETDATA_VFS_PID], em);
ebpf_vfs_allocate_global_vectors(em->apps_charts);
if (!em->enabled)
goto endvfs;
probe_links = ebpf_load_program(ebpf_plugin_dir, em, kernel_string, &objects);
if (!probe_links) {
goto endvfs;
}
int algorithms[NETDATA_KEY_PUBLISH_VFS_END] = {
NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX,NETDATA_EBPF_INCREMENTAL_IDX,
NETDATA_EBPF_INCREMENTAL_IDX, NETDATA_EBPF_INCREMENTAL_IDX,NETDATA_EBPF_INCREMENTAL_IDX
};
ebpf_global_labels(vfs_aggregated_data, vfs_publish_aggregated, vfs_dimension_names,
vfs_id_names, algorithms, NETDATA_KEY_PUBLISH_VFS_END);
pthread_mutex_lock(&lock);
ebpf_create_global_charts(em);
pthread_mutex_unlock(&lock);
vfs_collector(em);
endvfs:
netdata_thread_cleanup_pop(1);
return NULL;
}
|