Josh Bleecher Snyder
2abd91e265
runtime: add a map growth benchmark
...
Updates #19931
Updates #19992
Change-Id: Ib2d4e6b9b89a49caa443310d896dce8d6db06050
Reviewed-on: https://go-review.googlesource.com/40978
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2017-04-19 13:47:21 +00:00
Josh Bleecher Snyder
1d4bfb3ebb
cmd/gc: don't call memequal twice in generated type.eq routines
...
The first call is pointless. It appears to simply be a mistake.
benchmark old ns/op new ns/op delta
BenchmarkComplexAlgMap 90.7 76.1 -16.10%
Change-Id: Id0194c9f09cea8b68f17b2ac751a8e3240e47f19
Reviewed-on: https://go-review.googlesource.com/5284
Reviewed-by: Keith Randall <khr@golang.org>
2015-02-26 00:34:29 +00:00
Dmitry Vyukov
b3be360f16
cmd/gc: allocate non-escaping maps on stack
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Extend escape analysis to make(map[k]v).
If it does not escape, allocate temp buffer for hmap and one bucket on stack.
There are 75 cases of non-escaping maps in std lib.
benchmark old allocs new allocs delta
BenchmarkConcurrentStmtQuery 16161 15161 -6.19%
BenchmarkConcurrentTxQuery 17658 16658 -5.66%
BenchmarkConcurrentTxStmtQuery 16157 15156 -6.20%
BenchmarkConcurrentRandom 13637 13114 -3.84%
BenchmarkManyConcurrentQueries 22 20 -9.09%
BenchmarkDecodeComplex128Slice 250 188 -24.80%
BenchmarkDecodeFloat64Slice 250 188 -24.80%
BenchmarkDecodeInt32Slice 250 188 -24.80%
BenchmarkDecodeStringSlice 2250 2188 -2.76%
BenchmarkNewEmptyMap 1 0 -100.00%
BenchmarkNewSmallMap 2 0 -100.00%
benchmark old ns/op new ns/op delta
BenchmarkNewEmptyMap 124 55.7 -55.08%
BenchmarkNewSmallMap 317 148 -53.31%
benchmark old allocs new allocs delta
BenchmarkNewEmptyMap 1 0 -100.00%
BenchmarkNewSmallMap 2 0 -100.00%
benchmark old bytes new bytes delta
BenchmarkNewEmptyMap 48 0 -100.00%
BenchmarkNewSmallMap 192 0 -100.00%
Fixes #5449
Change-Id: I24fa66f949d2f138885d9e66a0d160240dc9e8fa
Reviewed-on: https://go-review.googlesource.com/3508
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
2015-02-12 09:53:52 +00:00
Russ Cox
c007ce824d
build: move package sources from src/pkg to src
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Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
2014-09-08 00:08:51 -04:00
