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Added bench.py and bench_runner.c for benchmarking

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These are really just different flavors of test.py and test_runner.c
without support for power-loss testing, but with support for measuring
the cumulative number of bytes read, programmed, and erased.

Note that the existing define parameterization should work perfectly
fine for running benchmarks across various dimensions:

./scripts/bench.py \
    runners/bench_runner \
    bench_file_read \
    -gnor \
    -DSIZE='range(0,131072,1024)'

Also added a couple basic benchmarks as a starting point.
This commit is contained in:
Christopher Haster
2022-09-20 02:01:59 -05:00
parent 20ec0be875
commit 4fe0738ff4
20 changed files with 4253 additions and 405 deletions
Download Patch File Download Diff File Expand all files Collapse all files
benches/bench_dir.toml
+284
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@@ -0,0 +1,284 @@
# deterministic prng
code = '''
static uint32_t xorshift32(uint32_t *state) {
uint32_t x = *state;
x ^= x << 13;
x ^= x >> 17;
x ^= x << 5;
*state = x;
return x;
}
'''
[cases.bench_dir_open]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.N = 1024
defines.FILE_SIZE = 8
defines.CHUNK_SIZE = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
// first create the files
char name[256];
uint8_t buffer[CHUNK_SIZE];
for (lfs_size_t i = 0; i < N; i++) {
sprintf(name, "file%08x", i);
lfs_file_t file;
lfs_file_open(&lfs, &file, name,
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
uint32_t file_prng = i;
for (lfs_size_t j = 0; j < FILE_SIZE; j += CHUNK_SIZE) {
for (lfs_size_t k = 0; k < CHUNK_SIZE; k++) {
buffer[k] = xorshift32(&file_prng);
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_close(&lfs, &file) => 0;
}
// then read the files
BENCH_START();
uint32_t prng = 42;
for (lfs_size_t i = 0; i < N; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (N-1-i)
: xorshift32(&prng) % N;
sprintf(name, "file%08x", i_);
lfs_file_t file;
lfs_file_open(&lfs, &file, name, LFS_O_RDONLY) => 0;
uint32_t file_prng = i_;
for (lfs_size_t j = 0; j < FILE_SIZE; j += CHUNK_SIZE) {
lfs_file_read(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
for (lfs_size_t k = 0; k < CHUNK_SIZE; k++) {
assert(buffer[k] == xorshift32(&file_prng));
}
}
lfs_file_close(&lfs, &file) => 0;
}
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_dir_creat]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.N = 1024
defines.FILE_SIZE = 8
defines.CHUNK_SIZE = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
BENCH_START();
uint32_t prng = 42;
char name[256];
uint8_t buffer[CHUNK_SIZE];
for (lfs_size_t i = 0; i < N; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (N-1-i)
: xorshift32(&prng) % N;
sprintf(name, "file%08x", i_);
lfs_file_t file;
lfs_file_open(&lfs, &file, name,
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_TRUNC) => 0;
uint32_t file_prng = i_;
for (lfs_size_t j = 0; j < FILE_SIZE; j += CHUNK_SIZE) {
for (lfs_size_t k = 0; k < CHUNK_SIZE; k++) {
buffer[k] = xorshift32(&file_prng);
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_close(&lfs, &file) => 0;
}
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_dir_remove]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.N = 1024
defines.FILE_SIZE = 8
defines.CHUNK_SIZE = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
// first create the files
char name[256];
uint8_t buffer[CHUNK_SIZE];
for (lfs_size_t i = 0; i < N; i++) {
sprintf(name, "file%08x", i);
lfs_file_t file;
lfs_file_open(&lfs, &file, name,
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
uint32_t file_prng = i;
for (lfs_size_t j = 0; j < FILE_SIZE; j += CHUNK_SIZE) {
for (lfs_size_t k = 0; k < CHUNK_SIZE; k++) {
buffer[k] = xorshift32(&file_prng);
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_close(&lfs, &file) => 0;
}
// then remove the files
BENCH_START();
uint32_t prng = 42;
for (lfs_size_t i = 0; i < N; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (N-1-i)
: xorshift32(&prng) % N;
sprintf(name, "file%08x", i_);
int err = lfs_remove(&lfs, name);
assert(!err || err == LFS_ERR_NOENT);
}
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_dir_read]
defines.N = 1024
defines.FILE_SIZE = 8
defines.CHUNK_SIZE = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
// first create the files
char name[256];
uint8_t buffer[CHUNK_SIZE];
for (lfs_size_t i = 0; i < N; i++) {
sprintf(name, "file%08x", i);
lfs_file_t file;
lfs_file_open(&lfs, &file, name,
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
uint32_t file_prng = i;
for (lfs_size_t j = 0; j < FILE_SIZE; j += CHUNK_SIZE) {
for (lfs_size_t k = 0; k < CHUNK_SIZE; k++) {
buffer[k] = xorshift32(&file_prng);
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_close(&lfs, &file) => 0;
}
// then read the directory
BENCH_START();
lfs_dir_t dir;
lfs_dir_open(&lfs, &dir, "/") => 0;
struct lfs_info info;
lfs_dir_read(&lfs, &dir, &info) => 1;
assert(info.type == LFS_TYPE_DIR);
assert(strcmp(info.name, ".") == 0);
lfs_dir_read(&lfs, &dir, &info) => 1;
assert(info.type == LFS_TYPE_DIR);
assert(strcmp(info.name, "..") == 0);
for (int i = 0; i < N; i++) {
sprintf(name, "file%08x", i);
lfs_dir_read(&lfs, &dir, &info) => 1;
assert(info.type == LFS_TYPE_REG);
assert(strcmp(info.name, name) == 0);
}
lfs_dir_read(&lfs, &dir, &info) => 0;
lfs_dir_close(&lfs, &dir) => 0;
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_dir_mkdir]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.N = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
BENCH_START();
uint32_t prng = 42;
char name[256];
for (lfs_size_t i = 0; i < N; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (N-1-i)
: xorshift32(&prng) % N;
printf("hm %d\n", i);
sprintf(name, "dir%08x", i_);
int err = lfs_mkdir(&lfs, name);
assert(!err || err == LFS_ERR_EXIST);
}
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_dir_rmdir]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.N = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
// first create the dirs
char name[256];
for (lfs_size_t i = 0; i < N; i++) {
sprintf(name, "dir%08x", i);
lfs_mkdir(&lfs, name) => 0;
}
// then remove the dirs
BENCH_START();
uint32_t prng = 42;
for (lfs_size_t i = 0; i < N; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (N-1-i)
: xorshift32(&prng) % N;
sprintf(name, "dir%08x", i_);
int err = lfs_remove(&lfs, name);
assert(!err || err == LFS_ERR_NOENT);
}
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
benches/bench_file.toml
+109
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# deterministic prng
code = '''
static uint32_t xorshift32(uint32_t *state) {
uint32_t x = *state;
x ^= x << 13;
x ^= x >> 17;
x ^= x << 5;
*state = x;
return x;
}
'''
[cases.bench_file_read]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.SIZE = '128*1024'
defines.CHUNK_SIZE = 64
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
lfs_size_t chunks = (SIZE+CHUNK_SIZE-1)/CHUNK_SIZE;
// first write the file
lfs_file_t file;
uint8_t buffer[CHUNK_SIZE];
lfs_file_open(&lfs, &file, "file",
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
for (lfs_size_t i = 0; i < chunks; i++) {
uint32_t chunk_prng = i;
for (lfs_size_t j = 0; j < CHUNK_SIZE; j++) {
buffer[j] = xorshift32(&chunk_prng);
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
lfs_file_close(&lfs, &file) => 0;
// then read the file
BENCH_START();
lfs_file_open(&lfs, &file, "file", LFS_O_RDONLY) => 0;
uint32_t prng = 42;
for (lfs_size_t i = 0; i < chunks; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (chunks-1-i)
: xorshift32(&prng) % chunks;
lfs_file_seek(&lfs, &file, i_*CHUNK_SIZE, LFS_SEEK_SET)
=> i_*CHUNK_SIZE;
lfs_file_read(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
uint32_t chunk_prng = i_;
for (lfs_size_t j = 0; j < CHUNK_SIZE; j++) {
assert(buffer[j] == xorshift32(&chunk_prng));
}
}
lfs_file_close(&lfs, &file) => 0;
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_file_write]
# 0 = in-order
# 1 = reversed-order
# 2 = random-order
defines.ORDER = [0, 1, 2]
defines.SIZE = '128*1024'
defines.CHUNK_SIZE = 64
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
lfs_mount(&lfs, cfg) => 0;
lfs_size_t chunks = (SIZE+CHUNK_SIZE-1)/CHUNK_SIZE;
BENCH_START();
lfs_file_t file;
lfs_file_open(&lfs, &file, "file",
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
uint8_t buffer[CHUNK_SIZE];
uint32_t prng = 42;
for (lfs_size_t i = 0; i < chunks; i++) {
lfs_off_t i_
= (ORDER == 0) ? i
: (ORDER == 1) ? (chunks-1-i)
: xorshift32(&prng) % chunks;
uint32_t chunk_prng = i_;
for (lfs_size_t j = 0; j < CHUNK_SIZE; j++) {
buffer[j] = xorshift32(&chunk_prng);
}
lfs_file_seek(&lfs, &file, i_*CHUNK_SIZE, LFS_SEEK_SET)
=> i_*CHUNK_SIZE;
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_close(&lfs, &file) => 0;
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
benches/bench_superblock.toml
+56
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@@ -0,0 +1,56 @@
[cases.bench_superblocks_found]
# support benchmarking with files
defines.N = [0, 1024]
defines.FILE_SIZE = 8
defines.CHUNK_SIZE = 8
code = '''
lfs_t lfs;
lfs_format(&lfs, cfg) => 0;
// create files?
lfs_mount(&lfs, cfg) => 0;
char name[256];
uint8_t buffer[CHUNK_SIZE];
for (lfs_size_t i = 0; i < N; i++) {
sprintf(name, "file%08x", i);
lfs_file_t file;
lfs_file_open(&lfs, &file, name,
LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
for (lfs_size_t j = 0; j < FILE_SIZE; j += CHUNK_SIZE) {
for (lfs_size_t k = 0; k < CHUNK_SIZE; k++) {
buffer[k] = i+j+k;
}
lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
}
lfs_file_close(&lfs, &file) => 0;
}
lfs_unmount(&lfs) => 0;
BENCH_START();
lfs_mount(&lfs, cfg) => 0;
BENCH_STOP();
lfs_unmount(&lfs) => 0;
'''
[cases.bench_superblocks_missing]
code = '''
lfs_t lfs;
BENCH_START();
int err = lfs_mount(&lfs, cfg);
assert(err != 0);
BENCH_STOP();
'''
[cases.bench_superblocks_format]
code = '''
lfs_t lfs;
BENCH_START();
lfs_format(&lfs, cfg) => 0;
BENCH_STOP();
'''