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| author | Alex A Skinner <alex@lx.lc> | 2014-08-30 13:12:28 +0900 |
|---|---|---|
| committer | Mikio Hara <mikioh.mikioh@gmail.com> | 2014-08-30 13:12:28 +0900 |
| commit | 39a021bc0e48b0509706432f4363dd3407385be5 (patch) | |
| tree | c27f3b80a76505fad14ee9b1562b1beb54573948 /src/pkg/runtime/stack.go | |
| parent | 2758cb75f09ac19e12d17c964e4e5b3edaf4842d (diff) | |
| download | go-39a021bc0e48b0509706432f4363dd3407385be5.tar.xz | |
net: implement query-response fast failover in builtin dns stub resolver
Speed improvements via code cleanup, and changes to make go dns behave more like glibc resolver. See https://groups.google.com/forum/#!topic/golang-dev/lV-0aHqxVeo
Fixes #6579.
Benchmark results on linux/amd64
benchmark old ns/op new ns/op delta
BenchmarkGoLookupIP 4831903 2572937 -46.75%
BenchmarkGoLookupIPNoSuchHost 10114105 2419641 -76.08%
BenchmarkGoLookupIPWithBrokenNameServer 20007735624 5004490730 -74.99%
benchmark old allocs new allocs delta
BenchmarkGoLookupIP 287 288 0.35%
BenchmarkGoLookupIPNoSuchHost 204 102 -50.00%
BenchmarkGoLookupIPWithBrokenNameServer 410 358 -12.68%
benchmark old bytes new bytes delta
BenchmarkGoLookupIP 13181 13271 0.68%
BenchmarkGoLookupIPNoSuchHost 17260 8714 -49.51%
BenchmarkGoLookupIPWithBrokenNameServer 28160 22432 -20.34%
LGTM=mikioh.mikioh
R=golang-codereviews, mikioh.mikioh, bradfitz, josharian, abursavich
CC=golang-codereviews
https://golang.org/cl/128820043
Diffstat (limited to 'src/pkg/runtime/stack.go')
0 files changed, 0 insertions, 0 deletions