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authorAndy Wingo <wingo@pobox.com>2015-04-19 13:28:46 +0200
committerAndy Wingo <wingo@pobox.com>2015-04-19 13:28:46 +0200
commit4d6a9d42289f0616c7e37a6d2d7e085d5c71870e (patch)
tree48ebe44e3842fec27f0928cba2f3cea11b54b26a /src/journal/test-compress-benchmark.c
parentd2d9ac67812e2f8c8b82a0f3428aa576b4d58a71 (diff)
Remove src/journal
Diffstat (limited to 'src/journal/test-compress-benchmark.c')
-rw-r--r--src/journal/test-compress-benchmark.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/src/journal/test-compress-benchmark.c b/src/journal/test-compress-benchmark.c
deleted file mode 100644
index c8e5b76c6c..0000000000
--- a/src/journal/test-compress-benchmark.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/***
- This file is part of systemd
-
- Copyright 2014 Zbigniew Jędrzejewski-Szmek
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "compress.h"
-#include "util.h"
-#include "macro.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,
- void **dst, size_t *dst_alloc_size, size_t* dst_size, size_t dst_max);
-
-#define MAX_SIZE (1024*1024LU)
-
-static char* make_buf(size_t count) {
- char *buf;
- size_t i;
-
- buf = malloc(count);
- assert_se(buf);
-
- for (i = 0; i < count; i++)
- buf[i] = 'a' + i % ('z' - 'a' + 1);
-
- return buf;
-}
-
-static void test_compress_decompress(const char* label,
- compress_t compress, decompress_t decompress) {
- usec_t n, n2 = 0;
- float dt;
-
- _cleanup_free_ char *text, *buf;
- _cleanup_free_ void *buf2 = NULL;
- size_t buf2_allocated = 0;
- size_t skipped = 0, compressed = 0, total = 0;
-
- text = make_buf(MAX_SIZE);
- buf = calloc(MAX_SIZE + 1, 1);
- assert_se(text && buf);
-
- n = now(CLOCK_MONOTONIC);
-
- for (size_t i = 1; i <= MAX_SIZE; i += (i < 2048 ? 1 : 217)) {
- size_t j = 0, k = 0;
- int r;
-
- r = compress(text, i, buf, &j);
- /* assume compression must be successful except for small inputs */
- assert_se(r == 0 || (i < 2048 && r == -ENOBUFS));
- /* check for overwrites */
- assert_se(buf[i] == 0);
- if (r != 0) {
- skipped += i;
- continue;
- }
-
- assert_se(j > 0);
- if (j >= i)
- log_error("%s \"compressed\" %zu -> %zu", label, i, j);
-
- r = decompress(buf, j, &buf2, &buf2_allocated, &k, 0);
- assert_se(r == 0);
- assert_se(buf2_allocated >= k);
- assert_se(k == i);
-
- assert_se(memcmp(text, buf2, i) == 0);
-
- total += i;
- compressed += j;
-
- n2 = now(CLOCK_MONOTONIC);
- if (n2 - n > 60 * USEC_PER_SEC)
- break;
- }
-
- dt = (n2-n) / 1e6;
-
- log_info("%s: compressed & decompressed %zu bytes in %.2fs (%.2fMiB/s), "
- "mean compresion %.2f%%, skipped %zu bytes",
- label, total, dt,
- total / 1024. / 1024 / dt,
- 100 - compressed * 100. / total,
- skipped);
-}
-
-int main(int argc, char *argv[]) {
-
- log_set_max_level(LOG_DEBUG);
-
-#ifdef HAVE_XZ
- test_compress_decompress("XZ", compress_blob_xz, decompress_blob_xz);
-#endif
-#ifdef HAVE_LZ4
- test_compress_decompress("LZ4", compress_blob_lz4, decompress_blob_lz4);
-#endif
- return 0;
-}