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global_statistics.c
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global_statistics.c
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// SPDX-License-Identifier: GPL-3.0-or-later
#include "common.h"
#define GLOBAL_STATS_RESET_WEB_USEC_MAX 0x01
static struct global_statistics {
volatile uint16_t connected_clients;
volatile uint64_t web_requests;
volatile uint64_t web_usec;
volatile uint64_t web_usec_max;
volatile uint64_t bytes_received;
volatile uint64_t bytes_sent;
volatile uint64_t content_size;
volatile uint64_t compressed_content_size;
volatile uint64_t web_client_count;
volatile uint64_t rrdr_queries_made;
volatile uint64_t rrdr_db_points_read;
volatile uint64_t rrdr_result_points_generated;
} global_statistics = {
.connected_clients = 0,
.web_requests = 0,
.web_usec = 0,
.bytes_received = 0,
.bytes_sent = 0,
.content_size = 0,
.compressed_content_size = 0,
.web_client_count = 1,
.rrdr_queries_made = 0,
.rrdr_db_points_read = 0,
.rrdr_result_points_generated = 0,
};
#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
#else
netdata_mutex_t global_statistics_mutex = NETDATA_MUTEX_INITIALIZER;
static inline void global_statistics_lock(void) {
netdata_mutex_lock(&global_statistics_mutex);
}
static inline void global_statistics_unlock(void) {
netdata_mutex_unlock(&global_statistics_mutex);
}
#endif
void rrdr_query_completed(uint64_t db_points_read, uint64_t result_points_generated) {
#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
__atomic_fetch_add(&global_statistics.rrdr_queries_made, 1, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.rrdr_db_points_read, db_points_read, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.rrdr_result_points_generated, result_points_generated, __ATOMIC_SEQ_CST);
#else
#warning NOT using atomic operations - using locks for global statistics
if (web_server_is_multithreaded)
global_statistics_lock();
global_statistics.rrdr_queries_made++;
global_statistics.rrdr_db_points_read += db_points_read;
global_statistics.rrdr_result_points_generated += result_points_generated;
if (web_server_is_multithreaded)
global_statistics_unlock();
#endif
}
void finished_web_request_statistics(uint64_t dt,
uint64_t bytes_received,
uint64_t bytes_sent,
uint64_t content_size,
uint64_t compressed_content_size) {
#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
uint64_t old_web_usec_max = global_statistics.web_usec_max;
while(dt > old_web_usec_max)
__atomic_compare_exchange(&global_statistics.web_usec_max, &old_web_usec_max, &dt, 1, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.web_requests, 1, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.web_usec, dt, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.bytes_received, bytes_received, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.bytes_sent, bytes_sent, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.content_size, content_size, __ATOMIC_SEQ_CST);
__atomic_fetch_add(&global_statistics.compressed_content_size, compressed_content_size, __ATOMIC_SEQ_CST);
#else
#warning NOT using atomic operations - using locks for global statistics
if (web_server_is_multithreaded)
global_statistics_lock();
if (dt > global_statistics.web_usec_max)
global_statistics.web_usec_max = dt;
global_statistics.web_requests++;
global_statistics.web_usec += dt;
global_statistics.bytes_received += bytes_received;
global_statistics.bytes_sent += bytes_sent;
global_statistics.content_size += content_size;
global_statistics.compressed_content_size += compressed_content_size;
if (web_server_is_multithreaded)
global_statistics_unlock();
#endif
}
uint64_t web_client_connected(void) {
#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
__atomic_fetch_add(&global_statistics.connected_clients, 1, __ATOMIC_SEQ_CST);
uint64_t id = __atomic_fetch_add(&global_statistics.web_client_count, 1, __ATOMIC_SEQ_CST);
#else
if (web_server_is_multithreaded)
global_statistics_lock();
global_statistics.connected_clients++;
uint64_t id = global_statistics.web_client_count++;
if (web_server_is_multithreaded)
global_statistics_unlock();
#endif
return id;
}
void web_client_disconnected(void) {
#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
__atomic_fetch_sub(&global_statistics.connected_clients, 1, __ATOMIC_SEQ_CST);
#else
if (web_server_is_multithreaded)
global_statistics_lock();
global_statistics.connected_clients--;
if (web_server_is_multithreaded)
global_statistics_unlock();
#endif
}
static inline void global_statistics_copy(struct global_statistics *gs, uint8_t options) {
#if defined(HAVE_C___ATOMIC) && !defined(NETDATA_NO_ATOMIC_INSTRUCTIONS)
gs->connected_clients = __atomic_fetch_add(&global_statistics.connected_clients, 0, __ATOMIC_SEQ_CST);
gs->web_requests = __atomic_fetch_add(&global_statistics.web_requests, 0, __ATOMIC_SEQ_CST);
gs->web_usec = __atomic_fetch_add(&global_statistics.web_usec, 0, __ATOMIC_SEQ_CST);
gs->web_usec_max = __atomic_fetch_add(&global_statistics.web_usec_max, 0, __ATOMIC_SEQ_CST);
gs->bytes_received = __atomic_fetch_add(&global_statistics.bytes_received, 0, __ATOMIC_SEQ_CST);
gs->bytes_sent = __atomic_fetch_add(&global_statistics.bytes_sent, 0, __ATOMIC_SEQ_CST);
gs->content_size = __atomic_fetch_add(&global_statistics.content_size, 0, __ATOMIC_SEQ_CST);
gs->compressed_content_size = __atomic_fetch_add(&global_statistics.compressed_content_size, 0, __ATOMIC_SEQ_CST);
gs->web_client_count = __atomic_fetch_add(&global_statistics.web_client_count, 0, __ATOMIC_SEQ_CST);
gs->rrdr_queries_made = __atomic_fetch_add(&global_statistics.rrdr_queries_made, 0, __ATOMIC_SEQ_CST);
gs->rrdr_db_points_read = __atomic_fetch_add(&global_statistics.rrdr_db_points_read, 0, __ATOMIC_SEQ_CST);
gs->rrdr_result_points_generated = __atomic_fetch_add(&global_statistics.rrdr_result_points_generated, 0, __ATOMIC_SEQ_CST);
if(options & GLOBAL_STATS_RESET_WEB_USEC_MAX) {
uint64_t n = 0;
__atomic_compare_exchange(&global_statistics.web_usec_max, &gs->web_usec_max, &n, 1, __ATOMIC_SEQ_CST,
__ATOMIC_SEQ_CST);
}
#else
global_statistics_lock();
memcpy(gs, (const void *)&global_statistics, sizeof(struct global_statistics));
if (options & GLOBAL_STATS_RESET_WEB_USEC_MAX)
global_statistics.web_usec_max = 0;
global_statistics_unlock();
#endif
}
void global_statistics_charts(void) {
static unsigned long long old_web_requests = 0,
old_web_usec = 0,
old_content_size = 0,
old_compressed_content_size = 0;
static collected_number compression_ratio = -1,
average_response_time = -1;
struct global_statistics gs;
struct rusage me, thread;
global_statistics_copy(&gs, GLOBAL_STATS_RESET_WEB_USEC_MAX);
getrusage(RUSAGE_THREAD, &thread);
getrusage(RUSAGE_SELF, &me);
{
static RRDSET *st_cpu_thread = NULL;
static RRDDIM *rd_cpu_thread_user = NULL,
*rd_cpu_thread_system = NULL;
#ifdef __FreeBSD__
if (unlikely(!st_cpu_thread)) {
st_cpu_thread = rrdset_create_localhost(
"netdata"
, "plugin_freebsd_cpu"
, NULL
, "freebsd"
, NULL
, "NetData FreeBSD Plugin CPU usage"
, "milliseconds/s"
, "netdata"
, "stats"
, 132000
, localhost->rrd_update_every
, RRDSET_TYPE_STACKED
);
#else
if (unlikely(!st_cpu_thread)) {
st_cpu_thread = rrdset_create_localhost(
"netdata"
, "plugin_proc_cpu"
, NULL
, "proc"
, NULL
, "NetData Proc Plugin CPU usage"
, "milliseconds/s"
, "netdata"
, "stats"
, 132000
, localhost->rrd_update_every
, RRDSET_TYPE_STACKED
);
#endif
rd_cpu_thread_user = rrddim_add(st_cpu_thread, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
rd_cpu_thread_system = rrddim_add(st_cpu_thread, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_cpu_thread);
rrddim_set_by_pointer(st_cpu_thread, rd_cpu_thread_user, thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
rrddim_set_by_pointer(st_cpu_thread, rd_cpu_thread_system, thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
rrdset_done(st_cpu_thread);
}
// ----------------------------------------------------------------
{
static RRDSET *st_cpu = NULL;
static RRDDIM *rd_cpu_user = NULL,
*rd_cpu_system = NULL;
if (unlikely(!st_cpu)) {
st_cpu = rrdset_create_localhost(
"netdata"
, "server_cpu"
, NULL
, "netdata"
, NULL
, "NetData CPU usage"
, "milliseconds/s"
, "netdata"
, "stats"
, 130000
, localhost->rrd_update_every
, RRDSET_TYPE_STACKED
);
rd_cpu_user = rrddim_add(st_cpu, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
rd_cpu_system = rrddim_add(st_cpu, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_cpu);
rrddim_set_by_pointer(st_cpu, rd_cpu_user, me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec);
rrddim_set_by_pointer(st_cpu, rd_cpu_system, me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec);
rrdset_done(st_cpu);
}
// ----------------------------------------------------------------
{
static RRDSET *st_clients = NULL;
static RRDDIM *rd_clients = NULL;
if (unlikely(!st_clients)) {
st_clients = rrdset_create_localhost(
"netdata"
, "clients"
, NULL
, "netdata"
, NULL
, "NetData Web Clients"
, "connected clients"
, "netdata"
, "stats"
, 130200
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_clients = rrddim_add(st_clients, "clients", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_clients);
rrddim_set_by_pointer(st_clients, rd_clients, gs.connected_clients);
rrdset_done(st_clients);
}
// ----------------------------------------------------------------
{
static RRDSET *st_reqs = NULL;
static RRDDIM *rd_requests = NULL;
if (unlikely(!st_reqs)) {
st_reqs = rrdset_create_localhost(
"netdata"
, "requests"
, NULL
, "netdata"
, NULL
, "NetData Web Requests"
, "requests/s"
, "netdata"
, "stats"
, 130300
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_requests = rrddim_add(st_reqs, "requests", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_reqs);
rrddim_set_by_pointer(st_reqs, rd_requests, (collected_number) gs.web_requests);
rrdset_done(st_reqs);
}
// ----------------------------------------------------------------
{
static RRDSET *st_bytes = NULL;
static RRDDIM *rd_in = NULL,
*rd_out = NULL;
if (unlikely(!st_bytes)) {
st_bytes = rrdset_create_localhost(
"netdata"
, "net"
, NULL
, "netdata"
, NULL
, "NetData Network Traffic"
, "kilobits/s"
, "netdata"
, "stats"
, 130000
, localhost->rrd_update_every
, RRDSET_TYPE_AREA
);
rd_in = rrddim_add(st_bytes, "in", NULL, 8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
rd_out = rrddim_add(st_bytes, "out", NULL, -8, BITS_IN_A_KILOBIT, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_bytes);
rrddim_set_by_pointer(st_bytes, rd_in, (collected_number) gs.bytes_received);
rrddim_set_by_pointer(st_bytes, rd_out, (collected_number) gs.bytes_sent);
rrdset_done(st_bytes);
}
// ----------------------------------------------------------------
{
static RRDSET *st_duration = NULL;
static RRDDIM *rd_average = NULL,
*rd_max = NULL;
if (unlikely(!st_duration)) {
st_duration = rrdset_create_localhost(
"netdata"
, "response_time"
, NULL
, "netdata"
, NULL
, "NetData API Response Time"
, "milliseconds/request"
, "netdata"
, "stats"
, 130400
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_average = rrddim_add(st_duration, "average", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
rd_max = rrddim_add(st_duration, "max", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_duration);
uint64_t gweb_usec = gs.web_usec;
uint64_t gweb_requests = gs.web_requests;
uint64_t web_usec = (gweb_usec >= old_web_usec) ? gweb_usec - old_web_usec : 0;
uint64_t web_requests = (gweb_requests >= old_web_requests) ? gweb_requests - old_web_requests : 0;
old_web_usec = gweb_usec;
old_web_requests = gweb_requests;
if (web_requests)
average_response_time = (collected_number) (web_usec / web_requests);
if (unlikely(average_response_time != -1))
rrddim_set_by_pointer(st_duration, rd_average, average_response_time);
else
rrddim_set_by_pointer(st_duration, rd_average, 0);
rrddim_set_by_pointer(st_duration, rd_max, ((gs.web_usec_max)?(collected_number)gs.web_usec_max:average_response_time));
rrdset_done(st_duration);
}
// ----------------------------------------------------------------
{
static RRDSET *st_compression = NULL;
static RRDDIM *rd_savings = NULL;
if (unlikely(!st_compression)) {
st_compression = rrdset_create_localhost(
"netdata"
, "compression_ratio"
, NULL
, "netdata"
, NULL
, "NetData API Responses Compression Savings Ratio"
, "percentage"
, "netdata"
, "stats"
, 130500
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_savings = rrddim_add(st_compression, "savings", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_compression);
// since we don't lock here to read the global statistics
// read the smaller value first
unsigned long long gcompressed_content_size = gs.compressed_content_size;
unsigned long long gcontent_size = gs.content_size;
unsigned long long compressed_content_size = gcompressed_content_size - old_compressed_content_size;
unsigned long long content_size = gcontent_size - old_content_size;
old_compressed_content_size = gcompressed_content_size;
old_content_size = gcontent_size;
if (content_size && content_size >= compressed_content_size)
compression_ratio = ((content_size - compressed_content_size) * 100 * 1000) / content_size;
if (compression_ratio != -1)
rrddim_set_by_pointer(st_compression, rd_savings, compression_ratio);
rrdset_done(st_compression);
}
// ----------------------------------------------------------------
if(gs.rrdr_queries_made) {
static RRDSET *st_rrdr_queries = NULL;
static RRDDIM *rd_queries = NULL;
if (unlikely(!st_rrdr_queries)) {
st_rrdr_queries = rrdset_create_localhost(
"netdata"
, "queries"
, NULL
, "queries"
, NULL
, "NetData API Queries"
, "queries/s"
, "netdata"
, "stats"
, 130500
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_queries = rrddim_add(st_rrdr_queries, "queries", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_rrdr_queries);
rrddim_set_by_pointer(st_rrdr_queries, rd_queries, (collected_number)gs.rrdr_queries_made);
rrdset_done(st_rrdr_queries);
}
// ----------------------------------------------------------------
if(gs.rrdr_db_points_read || gs.rrdr_result_points_generated) {
static RRDSET *st_rrdr_points = NULL;
static RRDDIM *rd_points_read = NULL;
static RRDDIM *rd_points_generated = NULL;
if (unlikely(!st_rrdr_points)) {
st_rrdr_points = rrdset_create_localhost(
"netdata"
, "db_points"
, NULL
, "queries"
, NULL
, "NetData API Points"
, "points/s"
, "netdata"
, "stats"
, 130501
, localhost->rrd_update_every
, RRDSET_TYPE_AREA
);
rd_points_read = rrddim_add(st_rrdr_points, "read", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_points_generated = rrddim_add(st_rrdr_points, "generated", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_rrdr_points);
rrddim_set_by_pointer(st_rrdr_points, rd_points_read, (collected_number)gs.rrdr_db_points_read);
rrddim_set_by_pointer(st_rrdr_points, rd_points_generated, (collected_number)gs.rrdr_result_points_generated);
rrdset_done(st_rrdr_points);
}
// ----------------------------------------------------------------
#ifdef ENABLE_DBENGINE
RRDHOST *host;
unsigned long long stats_array[RRDENG_NR_STATS] = {0};
unsigned long long local_stats_array[RRDENG_NR_STATS];
unsigned hosts_with_dbengine = 0, i;
rrd_rdlock();
rrdhost_foreach_read(host) {
if (host->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) {
++hosts_with_dbengine;
/* get localhost's DB engine's statistics */
rrdeng_get_35_statistics(host->rrdeng_ctx, local_stats_array);
for (i = 0 ; i < RRDENG_NR_STATS ; ++i) {
/* aggregate statistics across hosts */
stats_array[i] += local_stats_array[i];
}
}
}
rrd_unlock();
if (hosts_with_dbengine) {
/* deduplicate global statistics by getting the ones from the last host */
stats_array[30] = local_stats_array[30];
stats_array[31] = local_stats_array[31];
stats_array[32] = local_stats_array[32];
// ----------------------------------------------------------------
{
static RRDSET *st_compression = NULL;
static RRDDIM *rd_savings = NULL;
if (unlikely(!st_compression)) {
st_compression = rrdset_create_localhost(
"netdata"
, "dbengine_compression_ratio"
, NULL
, "dbengine"
, NULL
, "NetData DB engine data extents' compression savings ratio"
, "percentage"
, "netdata"
, "stats"
, 130502
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_savings = rrddim_add(st_compression, "savings", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_compression);
unsigned long long ratio;
unsigned long long compressed_content_size = stats_array[12];
unsigned long long content_size = stats_array[11];
if (content_size) {
// allow negative savings
ratio = ((content_size - compressed_content_size) * 100 * 1000) / content_size;
} else {
ratio = 0;
}
rrddim_set_by_pointer(st_compression, rd_savings, ratio);
rrdset_done(st_compression);
}
// ----------------------------------------------------------------
{
static RRDSET *st_pg_cache_hit_ratio = NULL;
static RRDDIM *rd_hit_ratio = NULL;
if (unlikely(!st_pg_cache_hit_ratio)) {
st_pg_cache_hit_ratio = rrdset_create_localhost(
"netdata"
, "page_cache_hit_ratio"
, NULL
, "dbengine"
, NULL
, "NetData DB engine page cache hit ratio"
, "percentage"
, "netdata"
, "stats"
, 130503
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_hit_ratio = rrddim_add(st_pg_cache_hit_ratio, "ratio", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_pg_cache_hit_ratio);
static unsigned long long old_hits = 0;
static unsigned long long old_misses = 0;
unsigned long long hits = stats_array[7];
unsigned long long misses = stats_array[8];
unsigned long long hits_delta;
unsigned long long misses_delta;
unsigned long long ratio;
hits_delta = hits - old_hits;
misses_delta = misses - old_misses;
old_hits = hits;
old_misses = misses;
if (hits_delta + misses_delta) {
// allow negative savings
ratio = (hits_delta * 100 * 1000) / (hits_delta + misses_delta);
} else {
ratio = 0;
}
rrddim_set_by_pointer(st_pg_cache_hit_ratio, rd_hit_ratio, ratio);
rrdset_done(st_pg_cache_hit_ratio);
}
// ----------------------------------------------------------------
{
static RRDSET *st_pg_cache_pages = NULL;
static RRDDIM *rd_descriptors = NULL;
static RRDDIM *rd_populated = NULL;
static RRDDIM *rd_committed = NULL;
static RRDDIM *rd_insertions = NULL;
static RRDDIM *rd_deletions = NULL;
static RRDDIM *rd_backfills = NULL;
static RRDDIM *rd_evictions = NULL;
if (unlikely(!st_pg_cache_pages)) {
st_pg_cache_pages = rrdset_create_localhost(
"netdata"
, "page_cache_stats"
, NULL
, "dbengine"
, NULL
, "NetData DB engine page statistics"
, "pages"
, "netdata"
, "stats"
, 130504
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_descriptors = rrddim_add(st_pg_cache_pages, "descriptors", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rd_populated = rrddim_add(st_pg_cache_pages, "populated", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rd_committed = rrddim_add(st_pg_cache_pages, "committed", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rd_insertions = rrddim_add(st_pg_cache_pages, "insertions", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_deletions = rrddim_add(st_pg_cache_pages, "deletions", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_backfills = rrddim_add(st_pg_cache_pages, "backfills", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_evictions = rrddim_add(st_pg_cache_pages, "evictions", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_pg_cache_pages);
rrddim_set_by_pointer(st_pg_cache_pages, rd_descriptors, (collected_number)stats_array[27]);
rrddim_set_by_pointer(st_pg_cache_pages, rd_populated, (collected_number)stats_array[3]);
rrddim_set_by_pointer(st_pg_cache_pages, rd_committed, (collected_number)stats_array[4]);
rrddim_set_by_pointer(st_pg_cache_pages, rd_insertions, (collected_number)stats_array[5]);
rrddim_set_by_pointer(st_pg_cache_pages, rd_deletions, (collected_number)stats_array[6]);
rrddim_set_by_pointer(st_pg_cache_pages, rd_backfills, (collected_number)stats_array[9]);
rrddim_set_by_pointer(st_pg_cache_pages, rd_evictions, (collected_number)stats_array[10]);
rrdset_done(st_pg_cache_pages);
}
// ----------------------------------------------------------------
{
static RRDSET *st_io_stats = NULL;
static RRDDIM *rd_reads = NULL;
static RRDDIM *rd_writes = NULL;
if (unlikely(!st_io_stats)) {
st_io_stats = rrdset_create_localhost(
"netdata"
, "dbengine_io_throughput"
, NULL
, "dbengine"
, NULL
, "NetData DB engine I/O throughput"
, "MiB/s"
, "netdata"
, "stats"
, 130505
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_reads = rrddim_add(st_io_stats, "reads", NULL, 1, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
rd_writes = rrddim_add(st_io_stats, "writes", NULL, -1, 1024 * 1024, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_io_stats);
rrddim_set_by_pointer(st_io_stats, rd_reads, (collected_number)stats_array[17]);
rrddim_set_by_pointer(st_io_stats, rd_writes, (collected_number)stats_array[15]);
rrdset_done(st_io_stats);
}
// ----------------------------------------------------------------
{
static RRDSET *st_io_stats = NULL;
static RRDDIM *rd_reads = NULL;
static RRDDIM *rd_writes = NULL;
if (unlikely(!st_io_stats)) {
st_io_stats = rrdset_create_localhost(
"netdata"
, "dbengine_io_operations"
, NULL
, "dbengine"
, NULL
, "NetData DB engine I/O operations"
, "operations/s"
, "netdata"
, "stats"
, 130506
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_reads = rrddim_add(st_io_stats, "reads", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_writes = rrddim_add(st_io_stats, "writes", NULL, -1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_io_stats);
rrddim_set_by_pointer(st_io_stats, rd_reads, (collected_number)stats_array[18]);
rrddim_set_by_pointer(st_io_stats, rd_writes, (collected_number)stats_array[16]);
rrdset_done(st_io_stats);
}
// ----------------------------------------------------------------
{
static RRDSET *st_errors = NULL;
static RRDDIM *rd_fs_errors = NULL;
static RRDDIM *rd_io_errors = NULL;
static RRDDIM *rd_flushing_errors = NULL;
if (unlikely(!st_errors)) {
st_errors = rrdset_create_localhost(
"netdata"
, "dbengine_global_errors"
, NULL
, "dbengine"
, NULL
, "NetData DB engine errors"
, "errors/s"
, "netdata"
, "stats"
, 130507
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_io_errors = rrddim_add(st_errors, "I/O errors", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_fs_errors = rrddim_add(st_errors, "FS errors", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
rd_flushing_errors = rrddim_add(st_errors, "flushing errors", NULL, 1, 1, RRD_ALGORITHM_INCREMENTAL);
}
else
rrdset_next(st_errors);
rrddim_set_by_pointer(st_errors, rd_io_errors, (collected_number)stats_array[30]);
rrddim_set_by_pointer(st_errors, rd_fs_errors, (collected_number)stats_array[31]);
rrddim_set_by_pointer(st_errors, rd_flushing_errors, (collected_number)stats_array[34]);
rrdset_done(st_errors);
}
// ----------------------------------------------------------------
{
static RRDSET *st_fd = NULL;
static RRDDIM *rd_fd_current = NULL;
static RRDDIM *rd_fd_max = NULL;
if (unlikely(!st_fd)) {
st_fd = rrdset_create_localhost(
"netdata"
, "dbengine_global_file_descriptors"
, NULL
, "dbengine"
, NULL
, "NetData DB engine File Descriptors"
, "descriptors"
, "netdata"
, "stats"
, 130508
, localhost->rrd_update_every
, RRDSET_TYPE_LINE
);
rd_fd_current = rrddim_add(st_fd, "current", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
rd_fd_max = rrddim_add(st_fd, "max", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_fd);
rrddim_set_by_pointer(st_fd, rd_fd_current, (collected_number)stats_array[32]);
/* Careful here, modify this accordingly if the File-Descriptor budget ever changes */
rrddim_set_by_pointer(st_fd, rd_fd_max, (collected_number)rlimit_nofile.rlim_cur / 4);
rrdset_done(st_fd);
}
// ----------------------------------------------------------------
{
static RRDSET *st_ram_usage = NULL;
static RRDDIM *rd_cached = NULL;
static RRDDIM *rd_pinned = NULL;
static RRDDIM *rd_metadata = NULL;
collected_number cached_pages, pinned_pages, API_producers, populated_pages, metadata, pages_on_disk,
page_cache_descriptors;
if (unlikely(!st_ram_usage)) {
st_ram_usage = rrdset_create_localhost(
"netdata"
, "dbengine_ram"
, NULL
, "dbengine"
, NULL
, "NetData DB engine RAM usage"
, "MiB"
, "netdata"
, "stats"
, 130509
, localhost->rrd_update_every
, RRDSET_TYPE_STACKED
);
rd_cached = rrddim_add(st_ram_usage, "cache", NULL, 1, 256, RRD_ALGORITHM_ABSOLUTE);
rd_pinned = rrddim_add(st_ram_usage, "collectors", NULL, 1, 256, RRD_ALGORITHM_ABSOLUTE);
rd_metadata = rrddim_add(st_ram_usage, "metadata", NULL, 1, 1048576, RRD_ALGORITHM_ABSOLUTE);
}
else
rrdset_next(st_ram_usage);
API_producers = (collected_number)stats_array[0];
pages_on_disk = (collected_number)stats_array[2];
populated_pages = (collected_number)stats_array[3];
page_cache_descriptors = (collected_number)stats_array[27];
if (API_producers * 2 > populated_pages) {
pinned_pages = API_producers;
} else{
pinned_pages = API_producers * 2;
}
cached_pages = populated_pages - pinned_pages;
metadata = page_cache_descriptors * sizeof(struct page_cache_descr);
metadata += pages_on_disk * sizeof(struct rrdeng_page_descr);
/* This is an empirical estimation for Judy array indexing and extent structures */
metadata += pages_on_disk * 58;
rrddim_set_by_pointer(st_ram_usage, rd_cached, cached_pages);
rrddim_set_by_pointer(st_ram_usage, rd_pinned, pinned_pages);
rrddim_set_by_pointer(st_ram_usage, rd_metadata, metadata);
rrdset_done(st_ram_usage);
}
}
#endif
}