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[dev.typeparams] internal/buildcfg: turn on register ABI by default on ARM64
This CL enables all regabi experiments on ARM64 by default.
regabiwrappers and regabireflect are enabled in the previous CLs.
regabidefer is already enabled everywhere. regabig is no-op on
ARM64 as it already has a G register. regabiargs is enabled in
this CL.
Go1 benchmarks results (GOEXPERIMENT=regabi vs. none, on macOS/ARM64):
name old time/op new time/op delta
BinaryTree17-8 1.20s ± 1% 1.02s ± 0% -15.08% (p=0.000 n=9+9)
Fannkuch11-8 1.55s ± 0% 1.57s ± 0% +1.53% (p=0.000 n=9+8)
FmtFprintfEmpty-8 22.5ns ± 3% 14.7ns ± 1% -34.47% (p=0.000 n=10+8)
FmtFprintfString-8 38.4ns ± 0% 28.8ns ± 0% -24.99% (p=0.000 n=9+9)
FmtFprintfInt-8 38.7ns ± 2% 34.5ns ± 0% -10.79% (p=0.000 n=10+7)
FmtFprintfIntInt-8 61.1ns ± 1% 57.9ns ± 0% -5.23% (p=0.000 n=10+8)
FmtFprintfPrefixedInt-8 69.9ns ± 0% 64.4ns ± 0% -7.78% (p=0.000 n=8+8)
FmtFprintfFloat-8 106ns ± 0% 76ns ± 0% -28.12% (p=0.000 n=7+10)
FmtManyArgs-8 273ns ± 0% 236ns ± 1% -13.57% (p=0.000 n=9+10)
GobDecode-8 3.09ms ± 1% 2.02ms ± 0% -34.70% (p=0.000 n=9+10)
GobEncode-8 2.45ms ± 1% 1.44ms ± 1% -41.26% (p=0.000 n=10+10)
Gzip-8 128ms ± 0% 124ms ± 0% -2.89% (p=0.000 n=7+8)
Gunzip-8 23.6ms ± 1% 19.8ms ± 0% -16.15% (p=0.000 n=10+9)
HTTPClientServer-8 27.4µs ± 1% 26.3µs ± 0% -4.05% (p=0.000 n=10+10)
JSONEncode-8 4.47ms ± 1% 3.45ms ± 1% -22.73% (p=0.000 n=10+9)
JSONDecode-8 21.5ms ± 0% 17.2ms ± 0% -19.78% (p=0.000 n=9+9)
Mandelbrot200-8 2.33ms ± 1% 2.33ms ± 1% ~ (p=0.842 n=9+10)
GoParse-8 1.62ms ± 1% 1.32ms ± 1% -18.67% (p=0.000 n=10+10)
RegexpMatchEasy0_32-8 33.1ns ± 0% 26.3ns ± 0% -20.50% (p=0.000 n=8+10)
RegexpMatchEasy0_1K-8 121ns ± 6% 121ns ± 8% ~ (p=0.926 n=10+10)
RegexpMatchEasy1_32-8 31.4ns ± 0% 24.7ns ± 0% -21.50% (p=0.000 n=9+10)
RegexpMatchEasy1_1K-8 177ns ± 0% 140ns ± 0% -20.70% (p=0.000 n=10+9)
RegexpMatchMedium_32-8 3.02ns ± 3% 2.12ns ± 0% -29.73% (p=0.000 n=10+10)
RegexpMatchMedium_1K-8 19.8µs ± 2% 17.1µs ± 0% -13.50% (p=0.000 n=9+9)
RegexpMatchHard_32-8 940ns ± 0% 872ns ± 0% -7.20% (p=0.000 n=9+8)
RegexpMatchHard_1K-8 28.5µs ± 1% 26.5µs ± 0% -7.06% (p=0.000 n=10+10)
Revcomp-8 186ms ± 1% 179ms ± 1% -3.66% (p=0.000 n=10+10)
Template-8 30.3ms ± 0% 22.3ms ± 0% -26.58% (p=0.000 n=8+9)
TimeParse-8 133ns ± 0% 117ns ± 0% -12.40% (p=0.000 n=10+10)
TimeFormat-8 176ns ± 0% 141ns ± 0% -19.92% (p=0.000 n=8+9)
[Geo mean] 21.4µs 17.8µs -16.81%
name old speed new speed delta
GobDecode-8 249MB/s ± 1% 381MB/s ± 0% +53.13% (p=0.000 n=9+10)
GobEncode-8 314MB/s ± 1% 534MB/s ± 1% +70.25% (p=0.000 n=10+10)
Gzip-8 152MB/s ± 0% 156MB/s ± 0% +2.97% (p=0.000 n=7+8)
Gunzip-8 822MB/s ± 1% 981MB/s ± 0% +19.26% (p=0.000 n=10+9)
JSONEncode-8 434MB/s ± 1% 562MB/s ± 1% +29.41% (p=0.000 n=10+9)
JSONDecode-8 90.3MB/s ± 0% 112.5MB/s ± 0% +24.66% (p=0.000 n=9+9)
GoParse-8 35.7MB/s ± 1% 43.9MB/s ± 1% +22.96% (p=0.000 n=10+10)
RegexpMatchEasy0_32-8 967MB/s ± 0% 1216MB/s ± 0% +25.78% (p=0.000 n=8+10)
RegexpMatchEasy0_1K-8 8.46GB/s ± 6% 8.45GB/s ± 7% ~ (p=0.912 n=10+10)
RegexpMatchEasy1_32-8 1.02GB/s ± 0% 1.30GB/s ± 0% +27.40% (p=0.000 n=9+10)
RegexpMatchEasy1_1K-8 5.78GB/s ± 0% 7.29GB/s ± 0% +26.10% (p=0.000 n=10+9)
RegexpMatchMedium_32-8 331MB/s ± 2% 471MB/s ± 0% +42.29% (p=0.000 n=10+10)
RegexpMatchMedium_1K-8 51.7MB/s ± 2% 59.8MB/s ± 0% +15.60% (p=0.000 n=9+9)
RegexpMatchHard_32-8 34.0MB/s ± 0% 36.7MB/s ± 0% +7.75% (p=0.000 n=9+8)
RegexpMatchHard_1K-8 35.9MB/s ± 1% 38.6MB/s ± 0% +7.59% (p=0.000 n=10+10)
Revcomp-8 1.37GB/s ± 1% 1.42GB/s ± 1% +3.79% (p=0.000 n=10+10)
Template-8 64.0MB/s ± 0% 87.1MB/s ± 0% +36.20% (p=0.000 n=8+9)
[Geo mean] 299MB/s 368MB/s +23.16%
Binary sizes:
old new
hello 1180994 1162626 -1.6%
cmd/compile 23455858 22833970 -2.7%
cmd/link 6425010 6332978 -1.4%
Text sizes:
old new
hello 458752 425984 -7.1%
cmd/compile 10190848 9355264 -8.2%
cmd/link 2621440 2441216 -6.9%
Change-Id: I52c10c11bb8fe5952b7043f9dbf09573ef71d2b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/324890
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Cherry Mui
parent
5f034f9b46
commit
4d2b528795
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@ -20,16 +20,16 @@ import (
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// was built with.)
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var Experiment goexperiment.Flags = parseExperiments()
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var regabiSupported = GOARCH == "amd64"
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var regabiDeveloping = GOARCH == "arm64"
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var regabiSupported = GOARCH == "amd64" || GOARCH == "arm64"
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var regabiDeveloping = false
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// experimentBaseline specifies the experiment flags that are enabled by
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// default in the current toolchain. This is, in effect, the "control"
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// configuration and any variation from this is an experiment.
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var experimentBaseline = goexperiment.Flags{
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RegabiWrappers: regabiSupported || regabiDeveloping,
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RegabiWrappers: regabiSupported,
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RegabiG: regabiSupported,
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RegabiReflect: regabiSupported || regabiDeveloping,
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RegabiReflect: regabiSupported,
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RegabiDefer: true,
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RegabiArgs: regabiSupported,
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}
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