diff options
Diffstat (limited to 'src/pkg/runtime/mgc0.c')
| -rw-r--r-- | src/pkg/runtime/mgc0.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/src/pkg/runtime/mgc0.c b/src/pkg/runtime/mgc0.c index d2a87edd14..e7955151ce 100644 --- a/src/pkg/runtime/mgc0.c +++ b/src/pkg/runtime/mgc0.c @@ -570,9 +570,18 @@ markroot(ParFor *desc, uint32 i) static Workbuf* getempty(Workbuf *b) { + MCache *c; + if(b != nil) runtime·lfstackpush(&work.full, &b->node); - b = (Workbuf*)runtime·lfstackpop(&work.empty); + b = nil; + c = g->m->mcache; + if(c->gcworkbuf != nil) { + b = c->gcworkbuf; + c->gcworkbuf = nil; + } + if(b == nil) + b = (Workbuf*)runtime·lfstackpop(&work.empty); if(b == nil) b = runtime·persistentalloc(sizeof(*b), CacheLineSize, &mstats.gc_sys); b->nobj = 0; @@ -582,9 +591,23 @@ getempty(Workbuf *b) static void putempty(Workbuf *b) { + MCache *c; + + c = g->m->mcache; + if(c->gcworkbuf == nil) { + c->gcworkbuf = b; + return; + } runtime·lfstackpush(&work.empty, &b->node); } +void +runtime·gcworkbuffree(void *b) +{ + if(b != nil) + putempty(b); +} + // Get a full work buffer off the work.full list, or return nil. static Workbuf* getfull(Workbuf *b) |