diff options
| author | Russ Cox <rsc@golang.org> | 2010-01-09 09:47:45 -0800 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-01-09 09:47:45 -0800 |
| commit | 5328df6534b9fa2ca83cbbac013ef1e094e11907 (patch) | |
| tree | 0a6fa7c1c69e10eb519d896d2634b6662999e835 /src/pkg/runtime/hashmap.c | |
| parent | 752b1702d03fbc4377fe856a378c7fa4abbb006f (diff) | |
| download | go-5328df6534b9fa2ca83cbbac013ef1e094e11907.tar.xz | |
runtime: check for preemption due to garbage collection
in various already expensive routines.
helps keep cpu utilization up when GOMAXPROCS > 1,
but not a full solution.
http://groups.google.com/group/golang-nuts/t/7a9535c4136d3e2
R=r
CC=golang-dev
https://golang.org/cl/184043
Diffstat (limited to 'src/pkg/runtime/hashmap.c')
| -rw-r--r-- | src/pkg/runtime/hashmap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/pkg/runtime/hashmap.c b/src/pkg/runtime/hashmap.c index 870274ae91..5bcd8bf416 100644 --- a/src/pkg/runtime/hashmap.c +++ b/src/pkg/runtime/hashmap.c @@ -744,6 +744,9 @@ mapaccess(Hmap *h, byte *ak, byte *av, bool *pres) { byte *res; + if(gcwaiting) + gosched(); + res = nil; if(hash_lookup(h, ak, (void**)&res)) { *pres = true; @@ -812,6 +815,9 @@ mapassign(Hmap *h, byte *ak, byte *av) byte *res; int32 hit; + if(gcwaiting) + gosched(); + res = nil; if(av == nil) { hash_remove(h, ak, (void**)&res); @@ -908,6 +914,9 @@ mapiterinit(Hmap *h) void runtime·mapiternext(struct hash_iter *it) { + if(gcwaiting) + gosched(); + it->data = hash_next(it); if(debug) { prints("runtime·mapiternext: iter="); |