diff options
Diffstat (limited to 'src/journal/test-compress-benchmark.c')
| -rw-r--r-- | src/journal/test-compress-benchmark.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/src/journal/test-compress-benchmark.c b/src/journal/test-compress-benchmark.c index c8e5b76c6c..0be6820a14 100644 --- a/src/journal/test-compress-benchmark.c +++ b/src/journal/test-compress-benchmark.c @@ -20,6 +20,7 @@ #include "compress.h" #include "util.h" #include "macro.h" +#include "random-util.h" typedef int (compress_t)(const void *src, uint64_t src_size, void *dst, size_t *dst_size); typedef int (decompress_t)(const void *src, uint64_t src_size, @@ -27,20 +28,31 @@ typedef int (decompress_t)(const void *src, uint64_t src_size, #define MAX_SIZE (1024*1024LU) -static char* make_buf(size_t count) { +static char* make_buf(size_t count, const char *type) { char *buf; size_t i; buf = malloc(count); assert_se(buf); - for (i = 0; i < count; i++) - buf[i] = 'a' + i % ('z' - 'a' + 1); + if (streq(type, "zeros")) + memzero(buf, count); + else if (streq(type, "simple")) + for (i = 0; i < count; i++) + buf[i] = 'a' + i % ('z' - 'a' + 1); + else if (streq(type, "random")) { + random_bytes(buf, count/10); + random_bytes(buf + 2*count/10, count/10); + random_bytes(buf + 4*count/10, count/20); + random_bytes(buf + 6*count/10, count/20); + random_bytes(buf + 8*count/10, count/20); + } else + assert_not_reached("here"); return buf; } -static void test_compress_decompress(const char* label, +static void test_compress_decompress(const char* label, const char* type, compress_t compress, decompress_t decompress) { usec_t n, n2 = 0; float dt; @@ -50,7 +62,7 @@ static void test_compress_decompress(const char* label, size_t buf2_allocated = 0; size_t skipped = 0, compressed = 0, total = 0; - text = make_buf(MAX_SIZE); + text = make_buf(MAX_SIZE, type); buf = calloc(MAX_SIZE + 1, 1); assert_se(text && buf); @@ -62,7 +74,8 @@ static void test_compress_decompress(const char* label, r = compress(text, i, buf, &j); /* assume compression must be successful except for small inputs */ - assert_se(r == 0 || (i < 2048 && r == -ENOBUFS)); + assert_se(r == 0 || (i < 2048 && r == -ENOBUFS) || streq(type, "random")); + /* check for overwrites */ assert_se(buf[i] == 0); if (r != 0) { @@ -91,23 +104,26 @@ static void test_compress_decompress(const char* label, dt = (n2-n) / 1e6; - log_info("%s: compressed & decompressed %zu bytes in %.2fs (%.2fMiB/s), " + log_info("%s/%s: compressed & decompressed %zu bytes in %.2fs (%.2fMiB/s), " "mean compresion %.2f%%, skipped %zu bytes", - label, total, dt, + label, type, total, dt, total / 1024. / 1024 / dt, 100 - compressed * 100. / total, skipped); } int main(int argc, char *argv[]) { + const char *i; log_set_max_level(LOG_DEBUG); + NULSTR_FOREACH(i, "zeros\0simple\0random\0") { #ifdef HAVE_XZ - test_compress_decompress("XZ", compress_blob_xz, decompress_blob_xz); + test_compress_decompress("XZ", i, compress_blob_xz, decompress_blob_xz); #endif #ifdef HAVE_LZ4 - test_compress_decompress("LZ4", compress_blob_lz4, decompress_blob_lz4); + test_compress_decompress("LZ4", i, compress_blob_lz4, decompress_blob_lz4); #endif + } return 0; } |