hcq/sysbench
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sb_memory.c: use configurable random function

Browse Source 
The --rand-type described in man pages don't really work for
sysbench memory tests. So enable this powerful feature.

Tested with

  sysbench memory --memory-access-mode=rnd --rand-type=pareto run

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
This commit is contained in:
Fengguang Wu
2018-09-26 10:21:21 +08:00
committed by Alexey Kopytov
parent 431660d65a
commit c63dbedae0
1 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/tests/memory/sb_memory.c
View File

@ -309,8 +309,8 @@ int event_rnd_none(sb_event_t *req, int thread_id)
for (ssize_t i = 0; i < memory_block_size; i += SIZEOF_SIZE_T)
{
size_t offset = (volatile size_t) (sb_rand_uniform_double() *
(memory_block_size / SIZEOF_SIZE_T));
size_t offset = (volatile size_t)
sb_rand_default(0, (memory_block_size - 1) / SIZEOF_SIZE_T);
(void) offset; /* unused */
/* nop */
}
@ -326,8 +326,8 @@ int event_rnd_read(sb_event_t *req, int thread_id)
for (ssize_t i = 0; i < memory_block_size; i += SIZEOF_SIZE_T)
{
size_t offset = (size_t) (sb_rand_uniform_double() *
(memory_block_size / SIZEOF_SIZE_T));
size_t offset = (size_t)
sb_rand_default(0, (memory_block_size - 1) / SIZEOF_SIZE_T);
size_t val = SIZE_T_LOAD(tls_buf + offset);
(void) val; /* unused */
}
@ -343,8 +343,8 @@ int event_rnd_write(sb_event_t *req, int thread_id)
for (ssize_t i = 0; i < memory_block_size; i += SIZEOF_SIZE_T)
{
size_t offset = (size_t) (sb_rand_uniform_double() *
(memory_block_size / SIZEOF_SIZE_T));
size_t offset = (size_t)
sb_rand_default(0, (memory_block_size - 1) / SIZEOF_SIZE_T);
SIZE_T_STORE(tls_buf + offset, i);
}