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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:31:17 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 14:31:17 +0000 |
commit | 8020f71afd34d7696d7933659df2d763ab05542f (patch) | |
tree | 2fdf1b5447ffd8bdd61e702ca183e814afdcb4fc /collectors/ebpf.plugin/ebpf_cachestat.h | |
parent | Initial commit. (diff) | |
download | netdata-upstream.tar.xz netdata-upstream.zip |
Adding upstream version 1.37.1.upstream/1.37.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'collectors/ebpf.plugin/ebpf_cachestat.h')
-rw-r--r-- | collectors/ebpf.plugin/ebpf_cachestat.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/collectors/ebpf.plugin/ebpf_cachestat.h b/collectors/ebpf.plugin/ebpf_cachestat.h new file mode 100644 index 0000000..07f0745 --- /dev/null +++ b/collectors/ebpf.plugin/ebpf_cachestat.h @@ -0,0 +1,90 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef NETDATA_EBPF_CACHESTAT_H +#define NETDATA_EBPF_CACHESTAT_H 1 + +// Module name +#define NETDATA_EBPF_MODULE_NAME_CACHESTAT "cachestat" + +// charts +#define NETDATA_CACHESTAT_HIT_RATIO_CHART "cachestat_ratio" +#define NETDATA_CACHESTAT_DIRTY_CHART "cachestat_dirties" +#define NETDATA_CACHESTAT_HIT_CHART "cachestat_hits" +#define NETDATA_CACHESTAT_MISSES_CHART "cachestat_misses" + +#define NETDATA_CACHESTAT_SUBMENU "page_cache" +#define NETDATA_CACHESTAT_CGROUP_SUBMENU "page cache (eBPF)" + +#define EBPF_CACHESTAT_DIMENSION_PAGE "pages/s" +#define EBPF_CACHESTAT_DIMENSION_HITS "hits/s" +#define EBPF_CACHESTAT_DIMENSION_MISSES "misses/s" + +#define NETDATA_LATENCY_CACHESTAT_SLEEP_MS 600000ULL + +// configuration file +#define NETDATA_CACHESTAT_CONFIG_FILE "cachestat.conf" + +// Contexts +#define NETDATA_CGROUP_CACHESTAT_HIT_RATIO_CONTEXT "cgroup.cachestat_ratio" +#define NETDATA_CGROUP_CACHESTAT_MODIFIED_CACHE_CONTEXT "cgroup.cachestat_dirties" +#define NETDATA_CGROUP_CACHESTAT_HIT_FILES_CONTEXT "cgroup.cachestat_hits" +#define NETDATA_CGROUP_CACHESTAT_MISS_FILES_CONTEXT "cgroup.cachestat_misses" + +#define NETDATA_SYSTEMD_CACHESTAT_HIT_RATIO_CONTEXT "services.cachestat_ratio" +#define NETDATA_SYSTEMD_CACHESTAT_MODIFIED_CACHE_CONTEXT "services.cachestat_dirties" +#define NETDATA_SYSTEMD_CACHESTAT_HIT_FILE_CONTEXT "services.cachestat_hits" +#define NETDATA_SYSTEMD_CACHESTAT_MISS_FILES_CONTEXT "services.cachestat_misses" + +// variables +enum cachestat_counters { + NETDATA_KEY_CALLS_ADD_TO_PAGE_CACHE_LRU, + NETDATA_KEY_CALLS_MARK_PAGE_ACCESSED, + NETDATA_KEY_CALLS_ACCOUNT_PAGE_DIRTIED, + NETDATA_KEY_CALLS_MARK_BUFFER_DIRTY, + + NETDATA_CACHESTAT_END +}; + +enum cachestat_account_dirty_pages { + NETDATA_CACHESTAT_ACCOUNT_PAGE_DIRTY, + NETDATA_CACHESTAT_SET_PAGE_DIRTY, + NETDATA_CACHESTAT_FOLIO_DIRTY +}; + +enum cachestat_indexes { + NETDATA_CACHESTAT_IDX_RATIO, + NETDATA_CACHESTAT_IDX_DIRTY, + NETDATA_CACHESTAT_IDX_HIT, + NETDATA_CACHESTAT_IDX_MISS +}; + +enum cachestat_tables { + NETDATA_CACHESTAT_GLOBAL_STATS, + NETDATA_CACHESTAT_PID_STATS, + NETDATA_CACHESTAT_CTRL +}; + +typedef struct netdata_publish_cachestat_pid { + uint64_t add_to_page_cache_lru; + uint64_t mark_page_accessed; + uint64_t account_page_dirtied; + uint64_t mark_buffer_dirty; +} netdata_cachestat_pid_t; + +typedef struct netdata_publish_cachestat { + long long ratio; + long long dirty; + long long hit; + long long miss; + + netdata_cachestat_pid_t current; + netdata_cachestat_pid_t prev; +} netdata_publish_cachestat_t; + +void *ebpf_cachestat_thread(void *ptr); + +extern struct config cachestat_config; +extern netdata_ebpf_targets_t cachestat_targets[]; +extern ebpf_local_maps_t cachestat_maps[]; + +#endif // NETDATA_EBPF_CACHESTAT_H |