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Change-Id: I22eb4e7444e5fe5f6767cc960895f3c6e2fa13cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/661615
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Carlos Amedee <carlos@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
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For #63678
Benchmark on Milk-V Mars CM eMMC (Starfive/JH7110 SoC)
goos: linux
goarch: riscv64
pkg: bytes
│ /root/bytes.old.bench │ /root/bytes.pc16.bench │
│ sec/op │ sec/op vs base │
Count/10 223.9n ± 1% 220.8n ± 1% -1.36% (p=0.001 n=10)
Count/32 571.6n ± 0% 571.3n ± 0% ~ (p=0.054 n=10)
Count/4K 38.56µ ± 0% 38.55µ ± 0% -0.01% (p=0.010 n=10)
Count/4M 40.13m ± 0% 39.21m ± 0% -2.28% (p=0.000 n=10)
Count/64M 627.5m ± 0% 627.4m ± 0% -0.01% (p=0.019 n=10)
CountEasy/10 101.3n ± 0% 101.3n ± 0% ~ (p=1.000 n=10) ¹
CountEasy/32 139.3n ± 0% 139.3n ± 0% ~ (p=1.000 n=10) ¹
CountEasy/4K 5.565µ ± 0% 5.564µ ± 0% -0.02% (p=0.001 n=10)
CountEasy/4M 5.619m ± 0% 5.619m ± 0% ~ (p=0.190 n=10)
CountEasy/64M 89.94m ± 0% 89.93m ± 0% ~ (p=0.436 n=10)
CountSingle/10 53.80n ± 0% 46.06n ± 0% -14.39% (p=0.000 n=10)
CountSingle/32 104.30n ± 0% 79.64n ± 0% -23.64% (p=0.000 n=10)
CountSingle/4K 10.413µ ± 0% 7.247µ ± 0% -30.40% (p=0.000 n=10)
CountSingle/4M 11.603m ± 0% 8.388m ± 0% -27.71% (p=0.000 n=10)
CountSingle/64M 230.9m ± 0% 172.3m ± 0% -25.40% (p=0.000 n=10)
CountHard1 9.981m ± 0% 9.981m ± 0% ~ (p=0.810 n=10)
CountHard2 9.981m ± 0% 9.981m ± 0% ~ (p=0.315 n=10)
CountHard3 9.981m ± 0% 9.981m ± 0% ~ (p=0.159 n=10)
geomean 144.6µ 133.5µ -7.70%
¹ all samples are equal
│ /root/bytes.old.bench │ /root/bytes.pc16.bench │
│ B/s │ B/s vs base │
Count/10 42.60Mi ± 1% 43.19Mi ± 1% +1.39% (p=0.001 n=10)
Count/32 53.38Mi ± 0% 53.42Mi ± 0% +0.06% (p=0.049 n=10)
Count/4K 101.3Mi ± 0% 101.3Mi ± 0% ~ (p=0.077 n=10)
Count/4M 99.68Mi ± 0% 102.01Mi ± 0% +2.34% (p=0.000 n=10)
Count/64M 102.0Mi ± 0% 102.0Mi ± 0% ~ (p=0.076 n=10)
CountEasy/10 94.18Mi ± 0% 94.18Mi ± 0% ~ (p=0.054 n=10)
CountEasy/32 219.1Mi ± 0% 219.1Mi ± 0% +0.01% (p=0.016 n=10)
CountEasy/4K 702.0Mi ± 0% 702.0Mi ± 0% +0.00% (p=0.000 n=10)
CountEasy/4M 711.9Mi ± 0% 711.9Mi ± 0% ~ (p=0.133 n=10)
CountEasy/64M 711.6Mi ± 0% 711.7Mi ± 0% ~ (p=0.447 n=10)
CountSingle/10 177.2Mi ± 0% 207.0Mi ± 0% +16.81% (p=0.000 n=10)
CountSingle/32 292.7Mi ± 0% 383.2Mi ± 0% +30.91% (p=0.000 n=10)
CountSingle/4K 375.1Mi ± 0% 539.0Mi ± 0% +43.70% (p=0.000 n=10)
CountSingle/4M 344.7Mi ± 0% 476.9Mi ± 0% +38.33% (p=0.000 n=10)
CountSingle/64M 277.2Mi ± 0% 371.5Mi ± 0% +34.05% (p=0.000 n=10)
geomean 199.7Mi 219.8Mi +10.10%
Change-Id: I1abf6b220b9802028f8ad5eebc8d3b7cfa3e89ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/541756
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
Run-TryBot: M Zhuo <mzh@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Wang Yaduo <wangyaduo@linux.alibaba.com>
Reviewed-by: Mark Ryan <markdryan@rivosinc.com>
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Change-Id: I9e997b59ffb868575b780b9660df1f5ac322b79a
Reviewed-on: https://go-review.googlesource.com/c/go/+/443556
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: David Chase <drchase@google.com>
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This CL masks byte params which high bits(~0xff) is unused for riscv64
regabi.
Currently the compiler only guarantees the low bits contains value.
Change-Id: I6dd6c867e60d2143fefde92c866f78c4b007a2f7
Reviewed-on: https://go-review.googlesource.com/c/go/+/402894
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: mzh <mzh@golangcn.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
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This CL adds support for the reg ABI to the bytes functions for
riscv64. These are initially under control of the
GOEXPERIMENT macro until all changes are in.
Change-Id: I026295ae38e2aba055f7a51c77f92c1921e5ec97
Reviewed-on: https://go-review.googlesource.com/c/go/+/361916
Run-TryBot: mzh <mzh@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Simple single-byte loop count for now, to be further improved in future
CLs.
Benchmark on linux/riscv64 (HiFive Unleashed):
name old time/op new time/op delta
CountSingle/10-4 190ns ± 1% 145ns ± 1% -23.66% (p=0.000 n=10+9)
CountSingle/32-4 422ns ± 1% 268ns ± 0% -36.43% (p=0.000 n=10+7)
CountSingle/4K-4 43.3µs ± 0% 23.8µs ± 0% -45.09% (p=0.000 n=8+10)
CountSingle/4M-4 54.2ms ± 1% 33.3ms ± 1% -38.48% (p=0.000 n=10+10)
CountSingle/64M-4 1.52s ± 1% 1.20s ± 1% -21.20% (p=0.000 n=9+9)
name old speed new speed delta
CountSingle/10-4 52.7MB/s ± 1% 69.1MB/s ± 1% +31.03% (p=0.000 n=10+9)
CountSingle/32-4 75.9MB/s ± 1% 119.5MB/s ± 0% +57.34% (p=0.000 n=10+8)
CountSingle/4K-4 94.6MB/s ± 0% 172.2MB/s ± 0% +82.10% (p=0.000 n=8+10)
CountSingle/4M-4 77.4MB/s ± 1% 125.8MB/s ± 1% +62.54% (p=0.000 n=10+10)
CountSingle/64M-4 44.2MB/s ± 1% 56.1MB/s ± 1% +26.91% (p=0.000 n=9+9)
Change-Id: I2a6bd50d22d5f598517bb3c5a50066c54280cac5
Reviewed-on: https://go-review.googlesource.com/c/go/+/263541
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
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