romenskiy2012/jemalloc
1
0
Fork 0
mirror of https://github.com/jemalloc/jemalloc.git synced 2026-07-31 07:28:02 +03:00
Code Issues Projects Releases Packages Wiki Activity

Change opt.metadata_thp to [disabled,auto,always].

Browse source 
To avoid the high RSS caused by THP + low usage arena (i.e. THP becomes a
significant percentage), added a new "auto" option which will only start using
THP after a base allocator used up the first THP region.  Starting from the
second hugepage (in a single arena), "auto" behaves the same as "always",
i.e. madvise hugepage right away.
This commit is contained in:
Qi Wang 2017-08-24 14:29:28 -07:00 • committed by Qi Wang
parent ea91dfa58e
commit 47b20bb654
10 changed files with 84 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/jemalloc.c
View file

@ -1055,7 +1055,23 @@ malloc_conf_init(void) {
if (opt_abort_conf && had_conf_error) {
malloc_abort_invalid_conf();
}
CONF_HANDLE_BOOL(opt_metadata_thp, "metadata_thp")
if (strncmp("metadata_thp", k, klen) == 0) {
int i;
bool match = false;
for (i = 0; i < metadata_thp_mode_limit; i++) {
if (strncmp(metadata_thp_mode_names[i],
v, vlen) == 0) {
opt_metadata_thp = i;
match = true;
break;
}
}
if (!match) {
malloc_conf_error("Invalid conf value",
k, klen, v, vlen);
}
continue;
}
CONF_HANDLE_BOOL(opt_retain, "retain")
if (strncmp("dss", k, klen) == 0) {
int i;