qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-26 14:36:52 -07:00
Code Releases Activity

test/chan: avoid wrap-around in memstats comparison

Browse Source 
The select2.go test assumed that the memory allocated between
its two samplings of runtime.ReadMemStats is strictly
increasing.  To avoid failing the tests when this is not true,
a greater-than check is introduced before computing the
difference in allocated memory.

R=golang-dev, r, cshapiro
CC=golang-dev
https://golang.org/cl/13701046
This commit is contained in:
Carl Shapiro 2013-09-20 17:27:56 -07:00
parent 0826c04e14
commit 1c45f98fa3
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
test/chan/select2.go
View File

@ -47,7 +47,8 @@ func main() {
runtime.GC()
runtime.ReadMemStats(memstats)
if memstats.Alloc-alloc > 1.1e5 {
// Be careful to avoid wraparound.
if memstats.Alloc > alloc && memstats.Alloc-alloc > 1.1e5 {
println("BUG: too much memory for 100,000 selects:", memstats.Alloc-alloc)
}
}