diff options
Diffstat (limited to 'src/fluent-bit/plugins/in_node_exporter_metrics/ne_cpufreq_linux.c')
| -rw-r--r-- | src/fluent-bit/plugins/in_node_exporter_metrics/ne_cpufreq_linux.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/in_node_exporter_metrics/ne_cpufreq_linux.c b/src/fluent-bit/plugins/in_node_exporter_metrics/ne_cpufreq_linux.c new file mode 100644 index 000000000..e31b976d8 --- /dev/null +++ b/src/fluent-bit/plugins/in_node_exporter_metrics/ne_cpufreq_linux.c @@ -0,0 +1,196 @@ +/* -*- 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; +} |