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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2022 The Fluent Bit Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_input_plugin.h>
#include "ne.h"
#include "ne_utils.h"
static int cpufreq_init(struct flb_ne *ctx)
{
struct cmt_gauge *g;
/* node_cpu_frequency_hertz */
g = cmt_gauge_create(ctx->cmt, "node", "cpu", "frequency_hertz",
"Current cpu thread frequency in hertz.",
1, (char *[]) {"cpu"});
if (!g) {
return -1;
}
ctx->cpu_freq_hertz = g;
/* node_cpu_frequency_max_hertz */
g = cmt_gauge_create(ctx->cmt, "node", "cpu", "frequency_max_hertz",
"Maximum cpu thread frequency in hertz.",
1, (char *[]) {"cpu"});
if (!g) {
return -1;
}
ctx->cpu_freq_max_hertz = g;
/* node_cpu_frequency_min_hertz */
g = cmt_gauge_create(ctx->cmt, "node", "cpu", "frequency_min_hertz",
"Minimum cpu thread frequency in hertz.",
1, (char *[]) {"cpu"});
if (!g) {
return -1;
}
ctx->cpu_freq_min_hertz = g;
/* node_cpu_scaling_frequency_hertz */
g = cmt_gauge_create(ctx->cmt, "node", "cpu", "scaling_frequency_hertz",
"Current scaled CPU thread frequency in hertz.",
1, (char *[]) {"cpu"});
if (!g) {
return -1;
}
ctx->cpu_scaling_freq_hertz = g;
/* node_cpu_scaling_frequency_max_hertz */
g = cmt_gauge_create(ctx->cmt, "node", "cpu", "scaling_frequency_max_hertz",
"Maximum scaled CPU thread frequency in hertz.",
1, (char *[]) {"cpu"});
if (!g) {
return -1;
}
ctx->cpu_scaling_freq_max_hertz = g;
/* node_cpu_scaling_frequency_min_hertz */
g = cmt_gauge_create(ctx->cmt, "node", "cpu", "scaling_frequency_min_hertz",
"Minimum scaled CPU thread frequency in hertz.",
1, (char *[]) {"cpu"});
if (!g) {
return -1;
}
ctx->cpu_scaling_freq_min_hertz = g;
return 0;
}
static int cpufreq_update(struct flb_ne *ctx)
{
int ret;
int len;
uint64_t ts;
uint64_t val;
char *cpu_id;
struct mk_list list;
struct mk_list *head;
struct flb_slist_entry *entry;
const char *pattern = "/devices/system/cpu/cpu[0-9]*";
ret = ne_utils_path_scan(ctx, ctx->path_sysfs, pattern, NE_SCAN_DIR, &list);
if (ret != 0) {
return -1;
}
if (mk_list_size(&list) == 0) {
return 0;
}
ts = cfl_time_now();
/* Process entries */
mk_list_foreach(head, &list) {
entry = mk_list_entry(head, struct flb_slist_entry, _head);
/* Locate CPU ID string */
len = flb_sds_len(entry->str);
cpu_id = entry->str + len;
while (*cpu_id != 'u') cpu_id--;
cpu_id++;
/* node_cpu_frequency_hertz */
ret = ne_utils_file_read_uint64(ctx->path_sysfs,
entry->str, "cpufreq", "cpuinfo_cur_freq",
&val);
if (ret == 0) {
cmt_gauge_set(ctx->cpu_freq_hertz, ts,
(double) (val * 1000.0),
1, (char *[]) {cpu_id});
}
/* node_cpu_frequency_max_hertz */
ret = ne_utils_file_read_uint64(ctx->path_sysfs,
entry->str, "cpufreq", "cpuinfo_max_freq",
&val);
if (ret == 0) {
cmt_gauge_set(ctx->cpu_freq_max_hertz, ts,
(double) (val * 1000.0),
1, (char *[]) {cpu_id});
}
/* node_cpu_frequency_min_hertz */
ret = ne_utils_file_read_uint64(ctx->path_sysfs,
entry->str, "cpufreq", "cpuinfo_min_freq",
&val);
if (ret == 0) {
cmt_gauge_set(ctx->cpu_freq_min_hertz, ts,
(double) (val * 1000.0),
1, (char *[]) {cpu_id});
}
/* node_cpu_scaling_frequency_hertz */
ret = ne_utils_file_read_uint64(ctx->path_sysfs,
entry->str, "cpufreq", "scaling_cur_freq",
&val);
if (ret == 0) {
cmt_gauge_set(ctx->cpu_scaling_freq_hertz, ts,
((double) val) * 1000.0,
1, (char *[]) {cpu_id});
}
/* node_cpu_scaling_frequency_max_hertz */
ret = ne_utils_file_read_uint64(ctx->path_sysfs,
entry->str, "cpufreq", "scaling_max_freq",
&val);
if (ret == 0) {
cmt_gauge_set(ctx->cpu_scaling_freq_max_hertz, ts,
(double) (val * 1000.0),
1, (char *[]) {cpu_id});
}
/* node_cpu_frequency_min_hertz */
ret = ne_utils_file_read_uint64(ctx->path_sysfs,
entry->str, "cpufreq", "scaling_min_freq",
&val);
if (ret == 0) {
cmt_gauge_set(ctx->cpu_scaling_freq_min_hertz, ts,
(double) (val * 1000.0),
1, (char *[]) {cpu_id});
}
}
flb_slist_destroy(&list);
return 0;
}
int ne_cpufreq_init(struct flb_ne *ctx)
{
cpufreq_init(ctx);
return 0;
}
int ne_cpufreq_update(struct flb_ne *ctx)
{
cpufreq_update(ctx);
return 0;
}
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