mirror of
https://gitee.com/openharmony/third_party_littlefs
synced 2024-11-27 00:50:38 +00:00
138 lines
3.7 KiB
C
138 lines
3.7 KiB
C
/*
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* Runner for littlefs benchmarks
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*
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* Copyright (c) 2022, The littlefs authors.
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef BENCH_RUNNER_H
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#define BENCH_RUNNER_H
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// override LFS_TRACE
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void bench_trace(const char *fmt, ...);
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#define LFS_TRACE_(fmt, ...) \
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bench_trace("%s:%d:trace: " fmt "%s\n", \
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__FILE__, \
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__LINE__, \
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__VA_ARGS__)
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#define LFS_TRACE(...) LFS_TRACE_(__VA_ARGS__, "")
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#define LFS_EMUBD_TRACE(...) LFS_TRACE_(__VA_ARGS__, "")
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// provide BENCH_START/BENCH_STOP macros
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void bench_start(void);
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void bench_stop(void);
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#define BENCH_START() bench_start()
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#define BENCH_STOP() bench_stop()
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// note these are indirectly included in any generated files
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#include "bd/lfs_emubd.h"
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#include <stdio.h>
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// give source a chance to define feature macros
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#undef _FEATURES_H
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#undef _STDIO_H
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// generated bench configurations
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struct lfs_config;
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enum bench_flags {
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BENCH_REENTRANT = 0x1,
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};
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typedef uint8_t bench_flags_t;
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typedef struct bench_define {
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intmax_t (*cb)(void *data);
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void *data;
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} bench_define_t;
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struct bench_case {
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const char *name;
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const char *path;
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bench_flags_t flags;
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size_t permutations;
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const bench_define_t *defines;
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bool (*filter)(void);
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void (*run)(struct lfs_config *cfg);
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};
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struct bench_suite {
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const char *name;
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const char *path;
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bench_flags_t flags;
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const char *const *define_names;
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size_t define_count;
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const struct bench_case *cases;
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size_t case_count;
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};
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// deterministic prng for pseudo-randomness in benches
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uint32_t bench_prng(uint32_t *state);
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#define BENCH_PRNG(state) bench_prng(state)
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// access generated bench defines
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intmax_t bench_define(size_t define);
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#define BENCH_DEFINE(i) bench_define(i)
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// a few preconfigured defines that control how benches run
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#define READ_SIZE_i 0
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#define PROG_SIZE_i 1
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#define ERASE_SIZE_i 2
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#define ERASE_COUNT_i 3
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#define BLOCK_SIZE_i 4
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#define BLOCK_COUNT_i 5
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#define CACHE_SIZE_i 6
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#define LOOKAHEAD_SIZE_i 7
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#define BLOCK_CYCLES_i 8
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#define ERASE_VALUE_i 9
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#define ERASE_CYCLES_i 10
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#define BADBLOCK_BEHAVIOR_i 11
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#define POWERLOSS_BEHAVIOR_i 12
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#define READ_SIZE bench_define(READ_SIZE_i)
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#define PROG_SIZE bench_define(PROG_SIZE_i)
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#define ERASE_SIZE bench_define(ERASE_SIZE_i)
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#define ERASE_COUNT bench_define(ERASE_COUNT_i)
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#define BLOCK_SIZE bench_define(BLOCK_SIZE_i)
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#define BLOCK_COUNT bench_define(BLOCK_COUNT_i)
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#define CACHE_SIZE bench_define(CACHE_SIZE_i)
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#define LOOKAHEAD_SIZE bench_define(LOOKAHEAD_SIZE_i)
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#define BLOCK_CYCLES bench_define(BLOCK_CYCLES_i)
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#define ERASE_VALUE bench_define(ERASE_VALUE_i)
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#define ERASE_CYCLES bench_define(ERASE_CYCLES_i)
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#define BADBLOCK_BEHAVIOR bench_define(BADBLOCK_BEHAVIOR_i)
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#define POWERLOSS_BEHAVIOR bench_define(POWERLOSS_BEHAVIOR_i)
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#define BENCH_IMPLICIT_DEFINES \
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BENCH_DEF(READ_SIZE, PROG_SIZE) \
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BENCH_DEF(PROG_SIZE, ERASE_SIZE) \
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BENCH_DEF(ERASE_SIZE, 0) \
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BENCH_DEF(ERASE_COUNT, (1024*1024)/BLOCK_SIZE) \
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BENCH_DEF(BLOCK_SIZE, ERASE_SIZE) \
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BENCH_DEF(BLOCK_COUNT, ERASE_COUNT/lfs_max(BLOCK_SIZE/ERASE_SIZE,1))\
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BENCH_DEF(CACHE_SIZE, lfs_max(64,lfs_max(READ_SIZE,PROG_SIZE))) \
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BENCH_DEF(LOOKAHEAD_SIZE, 16) \
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BENCH_DEF(BLOCK_CYCLES, -1) \
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BENCH_DEF(ERASE_VALUE, 0xff) \
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BENCH_DEF(ERASE_CYCLES, 0) \
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BENCH_DEF(BADBLOCK_BEHAVIOR, LFS_EMUBD_BADBLOCK_PROGERROR) \
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BENCH_DEF(POWERLOSS_BEHAVIOR, LFS_EMUBD_POWERLOSS_NOOP)
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#define BENCH_GEOMETRY_DEFINE_COUNT 4
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#define BENCH_IMPLICIT_DEFINE_COUNT 13
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#endif
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