80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/*
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* Copyright(c) 2012-2021 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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#ifndef __STAT_VIEW
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#define __STAT_VIEW
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#include <stdio.h>
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/* each line of statistics may be assigned one fo these semantic formats,
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* to which it will be converted */
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enum tag_type {
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FREEFORM, /**< free form text */
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KV_PAIR, /**< key value pair. sequence of kv-pairs will be aligned to
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columns, but no table-styleborders will be drawn */
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TABLE_ROW, /**< regular table row */
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TABLE_HEADER, /**< table header */
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TABLE_SECTION, /**< first row of a table section */
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DATA_SET, /**< set of records */
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RECORD, /**< one record of data */
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TREE_HEADER,
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TREE_BRANCH,
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TREE_LEAF,
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UNDEFINED_TAG /**< occurence of this (or anything else out of
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above tags) will immediately break processing */
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};
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#define TAG(x) #x ","
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#define TAG_NAME(x) #x
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enum format {
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TEXT, /**< output in text (formatted tables) form */
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CSV, /**< output in csv form */
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RAW_CSV, /**< csv form without transformations */
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PLAIN /**<debug setting: print intermediate format */
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};
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/**
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* @param infile - file in statistics_view intermediate format
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* @param outfile - file to which statistics need to be printed
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* @param format - desired format of an output.
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*/
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int stat_format_output(FILE *infile, FILE *outfile, int format);
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/*
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* EXAMPLE OF AN INTERMEDIATE FORMAT:
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*
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* DATA_SET,
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* RECORD,
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* KV_PAIR,Cache Id, 1
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* KV_PAIR,Cache Size, 5425999, [4KiB Blocks], 20.70, [GiB]
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* KV_PAIR,Cache Occupancy, 1340, [4KiB Blocks], 0.01, [GiB], 0.02, [%]
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* KV_PAIR,Metadata end offset, 79025
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* KV_PAIR,Dirty cache lines, 0
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* KV_PAIR,Clean cache lines, 1340
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* KV_PAIR,Cache Device, /dev/sdb
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* KV_PAIR,Core Devices, 15
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* KV_PAIR,Write Policy, wt
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* KV_PAIR,Eviction Policy, lru
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* KV_PAIR,Cleaning Policy, alru
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* KV_PAIR,Metadata Variant, "max (Maximum Performance, default)"
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* KV_PAIR,Metadata Memory Footprint, 345.4, [MiB]
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* KV_PAIR,Status, Running
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* TABLE_HEADER,Request statistics,Count,%
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* TABLE_SECTION,"Read hits", 180, 11.6
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* TABLE_ROW,"Read partial misses", 1, 0.1
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* TABLE_ROW,"Read full misses", 1370, 88.3
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* TABLE_ROW,"Read total", 1551, 100.0
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* TABLE_SECTION,"Write hits", 0, 0.0
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* TABLE_ROW,"Write partial misses", 0, 0.0
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* TABLE_ROW,"Write full misses", 0, 0.0
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* TABLE_ROW,"Write total", 0, 0.0
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*
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* In each of output formats, first CSV column (referred to as a "tag")
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* will be removed from output and used by formatter thread as a hint
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*/
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#endif /*__STAT_VIEW */
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