Dmitriy Vyukov
f84cbd0950
runtime: fix test for new closure representation
...
I've hit it several times already.
Currently it crashes with nil deref.
R=golang-dev, daniel.morsing, r
CC=golang-dev
https://golang.org/cl/10317045
2013-06-17 15:41:17 +04:00
Dmitriy Vyukov
7f070af515
runtime: deflake TestStackMem
...
The problem is that there are lots of dead G's from previous tests,
each dead G consumes 1 stack segment.
Fixes #5034 .
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/7749043
2013-03-12 15:19:06 +04:00
Russ Cox
091d7210c7
runtime: make TestStackMem a little less flaky
...
Have seen failures with GOMAXPROCS=4 on Windows.
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/7626043
2013-03-08 11:25:21 -05:00
Dmitriy Vyukov
3c25cd2784
runtime: increase stack limit in a test
...
Otherwise the test is flaky.
Fixes #4698 .
R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/7133071
2013-01-24 20:26:08 +04:00
Dmitriy Vyukov
f82db7d9e4
runtime: less aggressive per-thread stack segment caching
...
Introduce global stack segment cache and limit per-thread cache size.
This greatly reduces StackSys memory on workloads that create lots of threads.
benchmark old ns/op new ns/op delta
BenchmarkStackGrowth 665 656 -1.35%
BenchmarkStackGrowth-2 333 328 -1.50%
BenchmarkStackGrowth-4 224 172 -23.21%
BenchmarkStackGrowth-8 124 91 -26.13%
BenchmarkStackGrowth-16 82 47 -41.94%
BenchmarkStackGrowth-32 73 40 -44.79%
BenchmarkStackGrowthDeep 97231 94391 -2.92%
BenchmarkStackGrowthDeep-2 47230 58562 +23.99%
BenchmarkStackGrowthDeep-4 24993 49356 +97.48%
BenchmarkStackGrowthDeep-8 15105 30072 +99.09%
BenchmarkStackGrowthDeep-16 10005 15623 +56.15%
BenchmarkStackGrowthDeep-32 12517 13069 +4.41%
TestStackMem#1,MB 310 12 -96.13%
TestStackMem#2,MB 296 14 -95.27%
TestStackMem#3,MB 479 14 -97.08%
TestStackMem#1,sec 3.22 2.26 -29.81%
TestStackMem#2,sec 2.43 2.15 -11.52%
TestStackMem#3,sec 2.50 2.38 -4.80%
R=sougou, no.smile.face, rsc
CC=golang-dev, msolomon
https://golang.org/cl/7029044
2013-01-10 09:57:06 +04:00
Robert Griesemer
465b9c35e5
gofmt: apply gofmt -w src misc
...
Remove trailing whitespace in comments.
No other changes.
R=r
CC=golang-dev
https://golang.org/cl/6815053
2012-10-30 13:38:01 -07:00
Russ Cox
9e5db8c90a
5l, 6l, 8l: fix stack split logic for stacks near default segment size
...
Fixes #3310 .
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5823051
2012-03-15 15:22:30 -04:00
