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| author | Changkun Ou <hi@changkun.us> | 2019-08-01 16:22:28 +0000 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2019-09-03 17:10:37 +0000 |
| commit | 3c5614344234af95250f06fb97d605a2005d5353 (patch) | |
| tree | 75e3bb3470964c44cdfc3a7a9138aaddabfbecc6 /src/debug/dwarf/class_string.go | |
| parent | 88ca80b32286eb337185151249606dec302fe1d9 (diff) | |
| download | go-3c5614344234af95250f06fb97d605a2005d5353.tar.xz | |
runtime: one lock per order
This CL implements one lock per order of stackpool. It improves performance when mutator stack growth deeply, see benchmark below:
```
name old time/op new time/op delta
StackGrowth-8 3.60ns ± 5% 3.59ns ± 1% ~ (p=0.794 n=10+9)
StackGrowthDeep-8 370ns ± 1% 335ns ± 1% -9.47% (p=0.000 n=9+9)
StackCopyPtr-8 72.6ms ± 0% 71.6ms ± 1% -1.31% (p=0.000 n=9+9)
StackCopy-8 53.5ms ± 0% 53.2ms ± 1% -0.54% (p=0.006 n=8+9)
StackCopyNoCache-8 100ms ± 0% 99ms ± 0% -0.70% (p=0.000 n=8+8)
```
Change-Id: I1170d3fd9e6ff8516e25f669d0aaf1861311420f
GitHub-Last-Rev: 13b820cddd8008079c98d01ac22dd123a46a6603
GitHub-Pull-Request: golang/go#33399
Reviewed-on: https://go-review.googlesource.com/c/go/+/188478
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Diffstat (limited to 'src/debug/dwarf/class_string.go')
0 files changed, 0 insertions, 0 deletions