romenskiy2012/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-06-22 11:55:47 +03:00
Code Issues Projects Releases Packages Wiki Activity

Refactor prng to not use 64-bit atomics on 32-bit platforms.

Browse source 
This resolves #495.
This commit is contained in:
Jason Evans 2016-11-07 10:52:44 -08:00
parent a4e83e8593
commit 5d6cb6eb66
7 changed files with 365 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/prof.c
View file

@ -874,7 +874,7 @@ prof_sample_threshold_update(prof_tdata_t *tdata)
* pp 500
* (http://luc.devroye.org/rnbookindex.html)
*/
r = prng_lg_range(&tdata->prng_state, 53);
r = prng_lg_range_u64(&tdata->prng_state, 53);
u = (double)r * (1.0/9007199254740992.0L);
tdata->bytes_until_sample = (uint64_t)(log(u) /
log(1.0 - (1.0 / (double)((uint64_t)1U << lg_prof_sample))))