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fatfs: bypass newlib buffering in performance test

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This commit is contained in:
Ivan Grokhotkov 2019-01-05 07:17:51 +08:00
parent 577f8d8527
commit 5339c56bc5
1 changed files with 6 additions and 6 deletions
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12
components/fatfs/test/test_fatfs_common.c
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@ -696,20 +696,20 @@ void test_fatfs_concurrent(const char* filename_prefix)
vSemaphoreDelete(args4.done); vSemaphoreDelete(args4.done);
} }
void test_fatfs_rw_speed(const char* filename, void* buf, size_t buf_size, size_t file_size, bool write) void test_fatfs_rw_speed(const char* filename, void* buf, size_t buf_size, size_t file_size, bool is_write)
{ {
const size_t buf_count = file_size / buf_size; const size_t buf_count = file_size / buf_size;
FILE* f = fopen(filename, (write) ? "wb" : "rb"); FILE* f = fopen(filename, (is_write) ? "wb" : "rb");
TEST_ASSERT_NOT_NULL(f); TEST_ASSERT_NOT_NULL(f);
struct timeval tv_start; struct timeval tv_start;
gettimeofday(&tv_start, NULL); gettimeofday(&tv_start, NULL);
for (size_t n = 0; n < buf_count; ++n) { for (size_t n = 0; n < buf_count; ++n) {
if (write) { if (is_write) {
TEST_ASSERT_EQUAL(1, fwrite(buf, buf_size, 1, f)); TEST_ASSERT_EQUAL(buf_size, write(fileno(f), buf, buf_size));
} else { } else {
if (fread(buf, buf_size, 1, f) != 1) { if (read(fileno(f), buf, buf_size) != buf_size) {
printf("reading at n=%d, eof=%d", n, feof(f)); printf("reading at n=%d, eof=%d", n, feof(f));
TEST_FAIL(); TEST_FAIL();
} }
@ -723,6 +723,6 @@ void test_fatfs_rw_speed(const char* filename, void* buf, size_t buf_size, size_
float t_s = tv_end.tv_sec - tv_start.tv_sec + 1e-6f * (tv_end.tv_usec - tv_start.tv_usec); float t_s = tv_end.tv_sec - tv_start.tv_sec + 1e-6f * (tv_end.tv_usec - tv_start.tv_usec);
printf("%s %d bytes (block size %d) in %.3fms (%.3f MB/s)\n", printf("%s %d bytes (block size %d) in %.3fms (%.3f MB/s)\n",
(write)?"Wrote":"Read", file_size, buf_size, t_s * 1e3, (is_write)?"Wrote":"Read", file_size, buf_size, t_s * 1e3,
file_size / (1024.0f * 1024.0f * t_s)); file_size / (1024.0f * 1024.0f * t_s));
} }