Remove low-level stats getters from public API.
Since stats builder is implemented for retrieving cache, core and ioclass stats, adapters should use it instead. Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk
@@ -29,7 +29,6 @@
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#include "ocf_metadata_updater.h"
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#include "ocf_io_class.h"
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#include "ocf_stats.h"
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#include "ocf_stats_builder.h"
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#include "ocf_mngt.h"
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#include "ocf_ctx.h"
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#include "ocf_err.h"
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326
inc/ocf_stats.h
326
inc/ocf_stats.h
@@ -14,133 +14,210 @@
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#ifndef __OCF_STATS_H__
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#define __OCF_STATS_H__
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struct ocf_io;
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/**
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* Entire row of statistcs
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*/
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struct ocf_stat {
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/** Value */
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uint64_t value;
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/** percent x100 */
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uint64_t fraction;
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};
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/**
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* @brief OCF requests statistics like hit, miss, etc...
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* @brief Usage statistics in 4 KiB unit
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*
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* @note To calculate number of hits request do:
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* total - (partial_miss + full_miss)
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* An example of presenting statistics:
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* <pre>
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* ╔══════════════════╤══════════╤═══════╤═════════════╗
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* ║ Usage statistics │ Count │ % │ Units ║
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* ╠══════════════════╪══════════╪═══════╪═════════════╣
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* ║ Occupancy │ 20 │ 50.0 │ 4KiB blocks ║
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* ║ Free │ 20 │ 50.0 │ 4KiB blocks ║
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* ║ Clean │ 15 │ 75.0 │ 4KiB blocks ║
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* ║ Dirty │ 5 │ 25.0 │ 4KiB blocks ║
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* ╚══════════════════╧══════════╧═══════╧═════════════╝
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* </pre>
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*/
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struct ocf_stats_req {
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/** Number of partial misses */
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uint64_t partial_miss;
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/** Number of full misses */
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uint64_t full_miss;
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/** Total of requests */
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uint64_t total;
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/** Pass-through requests */
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uint64_t pass_through;
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struct ocf_stats_usage {
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struct ocf_stat occupancy;
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struct ocf_stat free;
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struct ocf_stat clean;
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struct ocf_stat dirty;
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};
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/**
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* @brief OCF error statistics
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* @brief Requests statistcs
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*
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* An example of presenting statistics:
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* <pre>
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* ╔══════════════════════╤═══════╤═══════╤══════════╗
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* ║ Request statistics │ Count │ % │ Units ║
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* ╠══════════════════════╪═══════╪═══════╪══════════╣
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* ║ Read hits │ 10 │ 4.5 │ Requests ║
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* ║ Read partial misses │ 1 │ 0.5 │ Requests ║
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* ║ Read full misses │ 211 │ 95.0 │ Requests ║
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* ║ Read total │ 222 │ 100.0 │ Requests ║
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* ╟──────────────────────┼───────┼───────┼──────────╢
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* ║ Write hits │ 0 │ 0.0 │ Requests ║
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* ║ Write partial misses │ 0 │ 0.0 │ Requests ║
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* ║ Write full misses │ 0 │ 0.0 │ Requests ║
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* ║ Write total │ 0 │ 0.0 │ Requests ║
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* ╟──────────────────────┼───────┼───────┼──────────╢
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* ║ Pass-Through reads │ 0 │ 0.0 │ Requests ║
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* ║ Pass-Through writes │ 0 │ 0.0 │ Requests ║
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* ║ Serviced requests │ 222 │ 100.0 │ Requests ║
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* ╟──────────────────────┼───────┼───────┼──────────╢
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* ║ Total requests │ 222 │ 100.0 │ Requests ║
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* ╚══════════════════════╧═══════╧═══════╧══════════╝
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* </pre>
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*/
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struct ocf_stats_error {
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/** Read errors */
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uint32_t read;
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/** Write errors */
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uint32_t write;
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struct ocf_stats_requests {
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struct ocf_stat rd_hits;
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struct ocf_stat rd_partial_misses;
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struct ocf_stat rd_full_misses;
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struct ocf_stat rd_total;
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struct ocf_stat wr_hits;
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struct ocf_stat wr_partial_misses;
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struct ocf_stat wr_full_misses;
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struct ocf_stat wr_total;
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struct ocf_stat rd_pt;
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struct ocf_stat wr_pt;
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struct ocf_stat serviced;
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struct ocf_stat total;
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};
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/**
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* @brief OCF block statistics in bytes
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* @brief Block statistics
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*
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* An example of presenting statistics:
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* <pre>
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* ╔════════════════════════════════════╤═══════╤═══════╤═════════════╗
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* ║ Block statistics │ Count │ % │ Units ║
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* ╠════════════════════════════════════╪═══════╪═══════╪═════════════╣
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* ║ Reads from core volume(s) │ 426 │ 100.0 │ 4KiB blocks ║
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* ║ Writes to core volume(s) │ 0 │ 0.0 │ 4KiB blocks ║
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* ║ Total to/from core volume (s) │ 426 │ 100.0 │ 4KiB blocks ║
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* ╟────────────────────────────────────┼───────┼───────┼─────────────╢
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* ║ Reads from cache volume │ 13 │ 3.0 │ 4KiB blocks ║
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* ║ Writes to cache volume │ 426 │ 97.0 │ 4KiB blocks ║
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* ║ Total to/from cache volume │ 439 │ 100.0 │ 4KiB blocks ║
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* ╟────────────────────────────────────┼───────┼───────┼─────────────╢
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* ║ Reads from core(s) │ 439 │ 100.0 │ 4KiB blocks ║
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* ║ Writes to core(s) │ 0 │ 0.0 │ 4KiB blocks ║
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* ║ Total to/from core(s) │ 439 │ 100.0 │ 4KiB blocks ║
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* ╚════════════════════════════════════╧═══════╧═══════╧═════════════╝
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* </pre>
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*/
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struct ocf_stats_block {
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/** Number of blocks read */
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uint64_t read;
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/** Number of blocks written */
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uint64_t write;
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struct ocf_stats_blocks {
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struct ocf_stat core_volume_rd;
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struct ocf_stat core_volume_wr;
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struct ocf_stat core_volume_total;
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struct ocf_stat cache_volume_rd;
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struct ocf_stat cache_volume_wr;
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struct ocf_stat cache_volume_total;
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struct ocf_stat volume_rd;
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struct ocf_stat volume_wr;
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struct ocf_stat volume_total;
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};
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/**
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* Statistics appropriate for given IO class
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* @brief Errors statistics
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*
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* An example of presenting statistics:
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* <pre>
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* ╔════════════════════╤═══════╤═════╤══════════╗
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* ║ Error statistics │ Count │ % │ Units ║
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* ╠════════════════════╪═══════╪═════╪══════════╣
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* ║ Cache read errors │ 0 │ 0.0 │ Requests ║
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* ║ Cache write errors │ 0 │ 0.0 │ Requests ║
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* ║ Cache total errors │ 0 │ 0.0 │ Requests ║
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* ╟────────────────────┼───────┼─────┼──────────╢
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* ║ Core read errors │ 0 │ 0.0 │ Requests ║
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* ║ Core write errors │ 0 │ 0.0 │ Requests ║
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* ║ Core total errors │ 0 │ 0.0 │ Requests ║
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* ╟────────────────────┼───────┼─────┼──────────╢
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* ║ Total errors │ 0 │ 0.0 │ Requests ║
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* ╚════════════════════╧═══════╧═════╧══════════╝
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* </pre>
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*/
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struct ocf_stats_io_class {
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/** Number of cache lines available for given partition */
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uint64_t free_clines;
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/** Number of cache lines within lru list */
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uint64_t occupancy_clines;
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/** Number of dirty cache lines assigned to specific partition */
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uint64_t dirty_clines;
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/** Read requests statistics */
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struct ocf_stats_req read_reqs;
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/** Writes requests statistics */
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struct ocf_stats_req write_reqs;
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/** Block requests submitted by user to this core */
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struct ocf_stats_block blocks;
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/** Block requests for cache volume statistics */
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struct ocf_stats_block cache_blocks;
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/** Block requests for core volume statistics */
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struct ocf_stats_block core_blocks;
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};
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#define IO_PACKET_NO 12
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#define IO_ALIGN_NO 4
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/**
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* @brief Core debug statistics
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*/
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struct ocf_stats_core_debug {
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/** I/O sizes being read (grouped by packets) */
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uint64_t read_size[IO_PACKET_NO];
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/** I/O sizes being written (grouped by packets) */
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uint64_t write_size[IO_PACKET_NO];
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/** I/O alignment for reads */
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uint64_t read_align[IO_ALIGN_NO];
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/** I/O alignment for writes */
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uint64_t write_align[IO_ALIGN_NO];
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struct ocf_stats_errors {
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struct ocf_stat core_volume_rd;
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struct ocf_stat core_volume_wr;
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struct ocf_stat core_volume_total;
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struct ocf_stat cache_volume_rd;
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struct ocf_stat cache_volume_wr;
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struct ocf_stat cache_volume_total;
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struct ocf_stat total;
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};
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/**
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* @brief OCF core statistics
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* @param Collect statistics for given cache
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*
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* @param cache Cache instance for which statistics will be collected
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* @param usage Usage statistics
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* @param req Request statistics
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* @param blocks Blocks statistics
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* @param errors Errors statistics
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*
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* @retval 0 Success
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* @retval Non-zero Error
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*/
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struct ocf_stats_core {
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/** Number of cache lines allocated in the cache for this core */
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uint32_t cache_occupancy;
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int ocf_stats_collect_cache(ocf_cache_t cache,
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struct ocf_stats_usage *usage,
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struct ocf_stats_requests *req,
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struct ocf_stats_blocks *blocks,
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struct ocf_stats_errors *errors);
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/** Number of dirty cache lines allocated in the cache for this core */
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uint32_t dirty;
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/**
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* @param Collect statistics for given core
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*
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* @param core Core for which statistics will be collected
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* @param usage Usage statistics
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* @param req Request statistics
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* @param blocks Blocks statistics
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* @param errors Errors statistics
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*
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* @retval 0 Success
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* @retval Non-zero Error
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*/
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int ocf_stats_collect_core(ocf_core_t core,
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struct ocf_stats_usage *usage,
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struct ocf_stats_requests *req,
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struct ocf_stats_blocks *blocks,
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struct ocf_stats_errors *errors);
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/** Read requests statistics */
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struct ocf_stats_req read_reqs;
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/**
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* @param Collect statistics for given ioclass
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*
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* @param core Core handle for which statistics will be collected
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* @param part_id Ioclass id for which statistics will be collected
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* @param usage Usage statistics
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* @param req Request statistics
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* @param blocks Blocks statistics
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*
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* @retval 0 Success
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* @retval Non-zero Error
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*/
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int ocf_stats_collect_part_core(ocf_core_t core, ocf_part_id_t part_id,
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struct ocf_stats_usage *usage, struct ocf_stats_requests *req,
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struct ocf_stats_blocks *blocks);
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/** Write requests statistics */
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struct ocf_stats_req write_reqs;
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/** Block requests for cache volume statistics */
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struct ocf_stats_block cache_volume;
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/** Block requests for core volume statistics */
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struct ocf_stats_block core_volume;
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/** Block requests submitted by user to this core */
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struct ocf_stats_block core;
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/** Cache volume error statistics */
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struct ocf_stats_error cache_errors;
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/** Core volume error statistics */
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struct ocf_stats_error core_errors;
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/** Debug statistics */
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struct ocf_stats_core_debug debug_stat;
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};
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/**
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* @param Collect statistics for given ioclass
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*
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* @param cache Cache instance for which statistics will be collected
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* @param part_id Ioclass id for which statistics will be collected
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* @param usage Usage statistics
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* @param req Request statistics
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* @param blocks Blocks statistics
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*
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* @retval 0 Success
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* @retval Non-zero Error
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*/
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int ocf_stats_collect_part_cache(ocf_cache_t cache, ocf_part_id_t part_id,
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struct ocf_stats_usage *usage, struct ocf_stats_requests *req,
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struct ocf_stats_blocks *blocks);
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/**
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* @brief Initialize or reset core statistics
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@@ -160,45 +237,4 @@ void ocf_core_stats_initialize(ocf_core_t core);
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*/
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void ocf_core_stats_initialize_all(ocf_cache_t cache);
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/**
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* @brief ocf_core_io_class_get_stats retrieve io class statistics
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* for given core
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*
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* Retrieve buffer of cache statistics for given cache instance.
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*
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* @param[in] core core handle to which request pertains
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* @param[in] part_id IO class, stats of which are requested
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* @param[out] stats statistic structure that shall be filled as
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* a result of this function invocation.
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*
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* @result zero upon successful completion; error code otherwise
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*/
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int ocf_core_io_class_get_stats(ocf_core_t core, ocf_part_id_t part_id,
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struct ocf_stats_io_class *stats);
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/**
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* @brief retrieve core stats
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*
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* Retrieve ocf per core stats (for all IO classes together)
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*
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* @param[in] core core ID to which request pertains
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* @param[out] stats statistics structure that shall be filled as
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* a result of this function invocation.
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*
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* @result zero upon successful completion; error code otherwise
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*/
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int ocf_core_get_stats(ocf_core_t core, struct ocf_stats_core *stats);
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/**
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* @brief update stats given IO request
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*
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* Function meant to update stats for IO request.
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*
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* @note This function shall be invoked for eac IO request processed
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*
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* @param[in] core to which request pertains
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* @param[in] io request for which stats are being updated
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*/
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void ocf_core_update_stats(ocf_core_t core, struct ocf_io *io);
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#endif /* __OCF_STATS_H__ */
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@@ -1,222 +0,0 @@
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/*
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* Copyright(c) 2012-2018 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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/**
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* @file
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* @brief OCF API for collecting statistics
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*
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* This file contains routines pertaining to retrieval and
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* manipulation of OCF IO statistics.
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*/
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#ifndef __OCF_STATS_BUILDER_H__
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#define __OCF_STATS_BUILDER_H__
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/**
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* Entire row of statistcs
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*/
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struct ocf_stat {
|
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/** Value */
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uint64_t value;
|
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/** percent x100 */
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uint64_t fraction;
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};
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|
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/**
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* @brief Usage statistics in 4 KiB unit
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*
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* An example of presenting statistics:
|
||||
* <pre>
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* ╔══════════════════╤══════════╤═══════╤═════════════╗
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* ║ Usage statistics │ Count │ % │ Units ║
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* ╠══════════════════╪══════════╪═══════╪═════════════╣
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* ║ Occupancy │ 20 │ 50.0 │ 4KiB blocks ║
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* ║ Free │ 20 │ 50.0 │ 4KiB blocks ║
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* ║ Clean │ 15 │ 75.0 │ 4KiB blocks ║
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* ║ Dirty │ 5 │ 25.0 │ 4KiB blocks ║
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* ╚══════════════════╧══════════╧═══════╧═════════════╝
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* </pre>
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*/
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struct ocf_stats_usage {
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struct ocf_stat occupancy;
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struct ocf_stat free;
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struct ocf_stat clean;
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struct ocf_stat dirty;
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};
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/**
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* @brief Requests statistcs
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*
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* An example of presenting statistics:
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||||
* <pre>
|
||||
* ╔══════════════════════╤═══════╤═══════╤══════════╗
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* ║ Request statistics │ Count │ % │ Units ║
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* ╠══════════════════════╪═══════╪═══════╪══════════╣
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* ║ Read hits │ 10 │ 4.5 │ Requests ║
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* ║ Read partial misses │ 1 │ 0.5 │ Requests ║
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* ║ Read full misses │ 211 │ 95.0 │ Requests ║
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* ║ Read total │ 222 │ 100.0 │ Requests ║
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* ╟──────────────────────┼───────┼───────┼──────────╢
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* ║ Write hits │ 0 │ 0.0 │ Requests ║
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* ║ Write partial misses │ 0 │ 0.0 │ Requests ║
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* ║ Write full misses │ 0 │ 0.0 │ Requests ║
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* ║ Write total │ 0 │ 0.0 │ Requests ║
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* ╟──────────────────────┼───────┼───────┼──────────╢
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* ║ Pass-Through reads │ 0 │ 0.0 │ Requests ║
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* ║ Pass-Through writes │ 0 │ 0.0 │ Requests ║
|
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* ║ Serviced requests │ 222 │ 100.0 │ Requests ║
|
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* ╟──────────────────────┼───────┼───────┼──────────╢
|
||||
* ║ Total requests │ 222 │ 100.0 │ Requests ║
|
||||
* ╚══════════════════════╧═══════╧═══════╧══════════╝
|
||||
* </pre>
|
||||
*/
|
||||
struct ocf_stats_requests {
|
||||
struct ocf_stat rd_hits;
|
||||
struct ocf_stat rd_partial_misses;
|
||||
struct ocf_stat rd_full_misses;
|
||||
struct ocf_stat rd_total;
|
||||
struct ocf_stat wr_hits;
|
||||
struct ocf_stat wr_partial_misses;
|
||||
struct ocf_stat wr_full_misses;
|
||||
struct ocf_stat wr_total;
|
||||
struct ocf_stat rd_pt;
|
||||
struct ocf_stat wr_pt;
|
||||
struct ocf_stat serviced;
|
||||
struct ocf_stat total;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Block statistics
|
||||
*
|
||||
* An example of presenting statistics:
|
||||
* <pre>
|
||||
* ╔════════════════════════════════════╤═══════╤═══════╤═════════════╗
|
||||
* ║ Block statistics │ Count │ % │ Units ║
|
||||
* ╠════════════════════════════════════╪═══════╪═══════╪═════════════╣
|
||||
* ║ Reads from core volume(s) │ 426 │ 100.0 │ 4KiB blocks ║
|
||||
* ║ Writes to core volume(s) │ 0 │ 0.0 │ 4KiB blocks ║
|
||||
* ║ Total to/from core volume (s) │ 426 │ 100.0 │ 4KiB blocks ║
|
||||
* ╟────────────────────────────────────┼───────┼───────┼─────────────╢
|
||||
* ║ Reads from cache volume │ 13 │ 3.0 │ 4KiB blocks ║
|
||||
* ║ Writes to cache volume │ 426 │ 97.0 │ 4KiB blocks ║
|
||||
* ║ Total to/from cache volume │ 439 │ 100.0 │ 4KiB blocks ║
|
||||
* ╟────────────────────────────────────┼───────┼───────┼─────────────╢
|
||||
* ║ Reads from core(s) │ 439 │ 100.0 │ 4KiB blocks ║
|
||||
* ║ Writes to core(s) │ 0 │ 0.0 │ 4KiB blocks ║
|
||||
* ║ Total to/from core(s) │ 439 │ 100.0 │ 4KiB blocks ║
|
||||
* ╚════════════════════════════════════╧═══════╧═══════╧═════════════╝
|
||||
* </pre>
|
||||
*/
|
||||
struct ocf_stats_blocks {
|
||||
struct ocf_stat core_volume_rd;
|
||||
struct ocf_stat core_volume_wr;
|
||||
struct ocf_stat core_volume_total;
|
||||
struct ocf_stat cache_volume_rd;
|
||||
struct ocf_stat cache_volume_wr;
|
||||
struct ocf_stat cache_volume_total;
|
||||
struct ocf_stat volume_rd;
|
||||
struct ocf_stat volume_wr;
|
||||
struct ocf_stat volume_total;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Errors statistics
|
||||
*
|
||||
* An example of presenting statistics:
|
||||
* <pre>
|
||||
* ╔════════════════════╤═══════╤═════╤══════════╗
|
||||
* ║ Error statistics │ Count │ % │ Units ║
|
||||
* ╠════════════════════╪═══════╪═════╪══════════╣
|
||||
* ║ Cache read errors │ 0 │ 0.0 │ Requests ║
|
||||
* ║ Cache write errors │ 0 │ 0.0 │ Requests ║
|
||||
* ║ Cache total errors │ 0 │ 0.0 │ Requests ║
|
||||
* ╟────────────────────┼───────┼─────┼──────────╢
|
||||
* ║ Core read errors │ 0 │ 0.0 │ Requests ║
|
||||
* ║ Core write errors │ 0 │ 0.0 │ Requests ║
|
||||
* ║ Core total errors │ 0 │ 0.0 │ Requests ║
|
||||
* ╟────────────────────┼───────┼─────┼──────────╢
|
||||
* ║ Total errors │ 0 │ 0.0 │ Requests ║
|
||||
* ╚════════════════════╧═══════╧═════╧══════════╝
|
||||
* </pre>
|
||||
*/
|
||||
struct ocf_stats_errors {
|
||||
struct ocf_stat core_volume_rd;
|
||||
struct ocf_stat core_volume_wr;
|
||||
struct ocf_stat core_volume_total;
|
||||
struct ocf_stat cache_volume_rd;
|
||||
struct ocf_stat cache_volume_wr;
|
||||
struct ocf_stat cache_volume_total;
|
||||
struct ocf_stat total;
|
||||
};
|
||||
|
||||
/**
|
||||
* @param Collect statistics for given cache
|
||||
*
|
||||
* @param cache Cache instance for each statistics will be collected
|
||||
* @param usage Usage statistics
|
||||
* @param req Request statistics
|
||||
* @param blocks Blocks statistics
|
||||
* @param errors Errors statistics
|
||||
*
|
||||
* @retval 0 Success
|
||||
* @retval Non-zero Error
|
||||
*/
|
||||
int ocf_stats_collect_cache(ocf_cache_t cache,
|
||||
struct ocf_stats_usage *usage,
|
||||
struct ocf_stats_requests *req,
|
||||
struct ocf_stats_blocks *blocks,
|
||||
struct ocf_stats_errors *errors);
|
||||
|
||||
/**
|
||||
* @param Collect statistics for given core
|
||||
*
|
||||
* @param core Core for which statistics will be collected
|
||||
* @param usage Usage statistics
|
||||
* @param req Request statistics
|
||||
* @param blocks Blocks statistics
|
||||
* @param errors Errors statistics
|
||||
*
|
||||
* @retval 0 Success
|
||||
* @retval Non-zero Error
|
||||
*/
|
||||
int ocf_stats_collect_core(ocf_core_t core,
|
||||
struct ocf_stats_usage *usage,
|
||||
struct ocf_stats_requests *req,
|
||||
struct ocf_stats_blocks *blocks,
|
||||
struct ocf_stats_errors *errors);
|
||||
|
||||
/**
|
||||
* @param Collect statistics for given ioclass
|
||||
*
|
||||
* @param core Core handle for which statistics will be collected
|
||||
* @param part_id Ioclass id for which statistics will be collected
|
||||
* @param usage Usage statistics
|
||||
* @param req Request statistics
|
||||
* @param blocks Blocks statistics
|
||||
*
|
||||
* @retval 0 Success
|
||||
* @retval Non-zero Error
|
||||
*/
|
||||
int ocf_stats_collect_part_core(ocf_core_t core, ocf_part_id_t part_id,
|
||||
struct ocf_stats_usage *usage, struct ocf_stats_requests *req,
|
||||
struct ocf_stats_blocks *blocks);
|
||||
|
||||
/**
|
||||
* @param Collect statistics for given ioclass
|
||||
*
|
||||
* @param cache Cache instance for which statistics will be collected
|
||||
* @param part_id Ioclass id for which statistics will be collected
|
||||
* @param usage Usage statistics
|
||||
* @param req Request statistics
|
||||
* @param blocks Blocks statistics
|
||||
*
|
||||
* @retval 0 Success
|
||||
* @retval Non-zero Error
|
||||
*/
|
||||
int ocf_stats_collect_part_cache(ocf_cache_t cache, ocf_part_id_t part_id,
|
||||
struct ocf_stats_usage *usage, struct ocf_stats_requests *req,
|
||||
struct ocf_stats_blocks *blocks);
|
||||
|
||||
#endif /* __OCF_STATS_BUILDER_H__ */
|
||||
@@ -23,6 +23,132 @@ struct ocf_counters_req {
|
||||
env_atomic64 pass_through;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief OCF requests statistics like hit, miss, etc...
|
||||
*
|
||||
* @note To calculate number of hits request do:
|
||||
* total - (partial_miss + full_miss)
|
||||
*/
|
||||
struct ocf_stats_req {
|
||||
/** Number of partial misses */
|
||||
uint64_t partial_miss;
|
||||
|
||||
/** Number of full misses */
|
||||
uint64_t full_miss;
|
||||
|
||||
/** Total of requests */
|
||||
uint64_t total;
|
||||
|
||||
/** Pass-through requests */
|
||||
uint64_t pass_through;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief OCF error statistics
|
||||
*/
|
||||
struct ocf_stats_error {
|
||||
/** Read errors */
|
||||
uint32_t read;
|
||||
|
||||
/** Write errors */
|
||||
uint32_t write;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief OCF block statistics in bytes
|
||||
*/
|
||||
struct ocf_stats_block {
|
||||
/** Number of blocks read */
|
||||
uint64_t read;
|
||||
|
||||
/** Number of blocks written */
|
||||
uint64_t write;
|
||||
};
|
||||
|
||||
/**
|
||||
* Statistics appropriate for given IO class
|
||||
*/
|
||||
struct ocf_stats_io_class {
|
||||
/** Number of cache lines available for given partition */
|
||||
uint64_t free_clines;
|
||||
|
||||
/** Number of cache lines within lru list */
|
||||
uint64_t occupancy_clines;
|
||||
|
||||
/** Number of dirty cache lines assigned to specific partition */
|
||||
uint64_t dirty_clines;
|
||||
|
||||
/** Read requests statistics */
|
||||
struct ocf_stats_req read_reqs;
|
||||
|
||||
/** Writes requests statistics */
|
||||
struct ocf_stats_req write_reqs;
|
||||
|
||||
/** Block requests for ocf volume statistics */
|
||||
struct ocf_stats_block blocks;
|
||||
|
||||
/** Block requests for cache volume statistics */
|
||||
struct ocf_stats_block cache_blocks;
|
||||
|
||||
/** Block requests for core volume statistics */
|
||||
struct ocf_stats_block core_blocks;
|
||||
};
|
||||
|
||||
#define IO_PACKET_NO 12
|
||||
#define IO_ALIGN_NO 4
|
||||
|
||||
/**
|
||||
* @brief Core debug statistics
|
||||
*/
|
||||
struct ocf_stats_core_debug {
|
||||
/** I/O sizes being read (grouped by packets) */
|
||||
uint64_t read_size[IO_PACKET_NO];
|
||||
|
||||
/** I/O sizes being written (grouped by packets) */
|
||||
uint64_t write_size[IO_PACKET_NO];
|
||||
|
||||
/** I/O alignment for reads */
|
||||
uint64_t read_align[IO_ALIGN_NO];
|
||||
|
||||
/** I/O alignment for writes */
|
||||
uint64_t write_align[IO_ALIGN_NO];
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief OCF core statistics
|
||||
*/
|
||||
struct ocf_stats_core {
|
||||
/** Number of cache lines allocated in the cache for this core */
|
||||
uint32_t cache_occupancy;
|
||||
|
||||
/** Number of dirty cache lines allocated in the cache for this core */
|
||||
uint32_t dirty;
|
||||
|
||||
/** Read requests statistics */
|
||||
struct ocf_stats_req read_reqs;
|
||||
|
||||
/** Write requests statistics */
|
||||
struct ocf_stats_req write_reqs;
|
||||
|
||||
/** Block requests for cache volume statistics */
|
||||
struct ocf_stats_block cache_volume;
|
||||
|
||||
/** Block requests for core volume statistics */
|
||||
struct ocf_stats_block core_volume;
|
||||
|
||||
/** Block requests submitted by user to this core */
|
||||
struct ocf_stats_block core;
|
||||
|
||||
/** Cache volume error statistics */
|
||||
struct ocf_stats_error cache_errors;
|
||||
|
||||
/** Core volume error statistics */
|
||||
struct ocf_stats_error core_errors;
|
||||
|
||||
/** Debug statistics */
|
||||
struct ocf_stats_core_debug debug_stat;
|
||||
};
|
||||
|
||||
/**
|
||||
* statistics appropriate for given io class.
|
||||
*/
|
||||
@@ -56,4 +182,45 @@ struct ocf_counters_core {
|
||||
#endif
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief ocf_core_io_class_get_stats retrieve io class statistics
|
||||
* for given core
|
||||
*
|
||||
* Retrieve buffer of cache statistics for given cache instance.
|
||||
*
|
||||
* @param[in] core core handle to which request pertains
|
||||
* @param[in] part_id IO class, stats of which are requested
|
||||
* @param[out] stats statistic structure that shall be filled as
|
||||
* a result of this function invocation.
|
||||
*
|
||||
* @result zero upon successful completion; error code otherwise
|
||||
*/
|
||||
int ocf_core_io_class_get_stats(ocf_core_t core, ocf_part_id_t part_id,
|
||||
struct ocf_stats_io_class *stats);
|
||||
|
||||
/**
|
||||
* @brief retrieve core stats
|
||||
*
|
||||
* Retrieve ocf per core stats (for all IO classes together)
|
||||
*
|
||||
* @param[in] core core ID to which request pertains
|
||||
* @param[out] stats statistics structure that shall be filled as
|
||||
* a result of this function invocation.
|
||||
*
|
||||
* @result zero upon successful completion; error code otherwise
|
||||
*/
|
||||
int ocf_core_get_stats(ocf_core_t core, struct ocf_stats_core *stats);
|
||||
|
||||
/**
|
||||
* @brief update DEBUG stats given IO request
|
||||
*
|
||||
* Function meant to update DEBUG stats for IO request.
|
||||
*
|
||||
* @note This function shall be invoked for each IO request processed
|
||||
*
|
||||
* @param[in] core to which request pertains
|
||||
* @param[in] io request for which stats are being updated
|
||||
*/
|
||||
void ocf_core_update_stats(ocf_core_t core, struct ocf_io *io);
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user