| Age | Commit message (Collapse) | Author |
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name old time/op new time/op delta
AfterFunc-12 66.7µs ± 3% 66.8µs ± 4% ~ (p=0.836 n=20+20)
After-12 99.4µs ± 4% 98.1µs ± 3% -1.31% (p=0.013 n=20+20)
Stop-12 66.1µs ±12% 65.4µs ±10% ~ (p=0.602 n=20+20)
SimultaneousAfterFunc-12 110µs ± 1% 114µs ± 2% +3.98% (p=0.000 n=19+18)
StartStop-12 32.1µs ±15% 32.2µs ±13% ~ (p=0.620 n=20+20)
Reset-12 3.66µs ± 2% 3.63µs ± 5% -0.92% (p=0.018 n=20+17)
Sleep-12 134µs ± 1% 139µs ± 4% +3.97% (p=0.000 n=20+18)
Ticker-12 32.8µs ± 1% 32.6µs ± 2% -0.63% (p=0.017 n=18+20)
TickerReset-12 3.72µs ± 3% 3.71µs ± 3% ~ (p=0.753 n=20+20)
TickerResetNaive-12 68.9µs ±11% 65.8µs ± 8% -4.44% (p=0.008 n=20+20)
Now-12 33.3ns ± 1% 29.6ns ± 0% -11.06% (p=0.000 n=18+16)
NowUnixNano-12 34.6ns ± 0% 31.2ns ± 0% -9.94% (p=0.000 n=20+17)
NowUnixMilli-12 35.0ns ± 1% 30.9ns ± 0% -11.75% (p=0.000 n=19+15)
NowUnixMicro-12 35.0ns ± 0% 30.9ns ± 0% -11.85% (p=0.000 n=20+19)
Format-12 302ns ± 3% 306ns ± 3% +1.22% (p=0.009 n=20+20)
FormatNow-12 184ns ± 5% 187ns ± 2% +1.25% (p=0.046 n=20+19)
MarshalJSON-12 262ns ± 2% 270ns ± 3% +2.99% (p=0.000 n=20+20)
MarshalText-12 262ns ± 3% 268ns ± 3% +2.37% (p=0.000 n=19+19)
Parse-12 145ns ± 1% 148ns ± 0% +2.27% (p=0.000 n=18+19)
ParseDuration-12 82.3ns ± 1% 79.7ns ± 1% -3.06% (p=0.000 n=20+20)
Hour-12 4.48ns ± 1% 4.42ns ± 1% -1.32% (p=0.000 n=19+19)
Second-12 4.44ns ± 1% 4.42ns ± 1% -0.39% (p=0.000 n=20+18)
Year-12 11.2ns ± 1% 11.1ns ± 1% ~ (p=0.193 n=20+20)
Day-12 14.8ns ± 0% 14.8ns ± 1% ~ (p=0.873 n=19+20)
ISOWeek-12 17.2ns ± 0% 17.2ns ± 0% ~ (p=0.605 n=18+20)
name old avg-late-ns new avg-late-ns delta
ParallelTimerLatency-12 375k ± 3% 377k ± 3% ~ (p=0.445 n=20+20)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=1-12 136k ± 2% 137k ± 2% ~ (p=0.242 n=20+20)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=2-12 97.4k ±11% 96.4k ±10% ~ (p=0.336 n=19+20)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=3-12 74.8k ± 3% 74.2k ± 3% ~ (p=0.158 n=20+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=4-12 70.7k ± 7% 70.4k ± 6% ~ (p=0.879 n=20+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=5-12 65.8k ± 9% 66.3k ±14% ~ (p=0.594 n=17+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=6-12 55.5k ±29% 56.7k ±30% ~ (p=0.758 n=20+20)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=7-12 45.3k ±29% 43.6k ±33% ~ (p=0.212 n=19+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=8-12 64.7k ±46% 65.2k ±78% ~ (p=0.480 n=18+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=9-12 147k ±88% 119k ±83% ~ (p=0.092 n=19+18)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=10-12 2.63M ±29% 2.70M ±59% ~ (p=0.989 n=19+20)
StaggeredTickerLatency/work-dur=2ms/tickers-per-P=1-12 81.4k ± 4% 80.2k ± 3% -1.55% (p=0.009 n=17+18)
name old max-late-ns new max-late-ns delta
ParallelTimerLatency-12 7.66M ±102% 6.98M ±131% ~ (p=0.445 n=20+20)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=1-12 381k ±12% 382k ±17% ~ (p=0.901 n=17+16)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=2-12 388k ±69% 356k ±10% ~ (p=0.363 n=17+16)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=3-12 350k ±17% 347k ±25% ~ (p=0.538 n=19+18)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=4-12 378k ±52% 341k ±30% ~ (p=0.153 n=18+17)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=5-12 392k ±54% 410k ±78% ~ (p=0.730 n=18+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=6-12 467k ±80% 527k ±129% ~ (p=0.616 n=17+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=7-12 915k ±138% 1023k ±227% ~ (p=0.696 n=20+18)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=8-12 1.84M ±155% 1.74M ±158% ~ (p=0.893 n=18+19)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=9-12 6.95M ±92% 7.66M ±91% ~ (p=0.687 n=19+20)
StaggeredTickerLatency/work-dur=300µs/tickers-per-P=10-12 18.6M ±22% 16.2M ±28% -12.78% (p=0.003 n=19+19)
StaggeredTickerLatency/work-dur=2ms/tickers-per-P=1-12 1.01M ± 8% 1.04M ±10% ~ (p=0.111 n=19+18)
Change-Id: I96aa2e0206a6e9286bcbfc8be372e84608ed4e2f
Reviewed-on: https://go-review.googlesource.com/c/go/+/314277
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Build other definitions with the !faketime build tag.
This makes it easy for us to add new assembly implementations of time.now.
Change-Id: I4e48e41a4a04ab001030e6d1cdd9cebfa0161b0d
Reviewed-on: https://go-review.googlesource.com/c/go/+/314274
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Make all our package sources use Go 1.17 gofmt format
(adding //go:build lines).
Part of //go:build change (#41184).
See https://golang.org/design/draft-gobuild
Change-Id: Ia0534360e4957e58cd9a18429c39d0e32a6addb4
Reviewed-on: https://go-review.googlesource.com/c/go/+/294430
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Move startNano from runtime to time package.
In preparation for a subsequent change that speeds up Since and Until.
This also makes code simpler as we have less assembly as the result,
monotonic time handling is better localized in time package.
This changes values returned from nanotime on windows
(it does not account for startNano anymore), current comments state
that it's important, but it's unclear how it can be important
since no other OS does this.
Update #25729
Change-Id: I2275d57b7b5ed8fd0d53eb0f19d55a86136cc555
Reviewed-on: https://go-review.googlesource.com/c/146340
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Change-Id: Ibdd9202d9711ea8aab2446c9950ddb8e1f6bf4e0
Reviewed-on: https://go-review.googlesource.com/114799
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Fetch both monotonic and wall time together when possible.
Avoids skew and is cheaper.
Also shave a few ns off in conversion in package time.
Compared to current implementation (after monotonic changes):
name old time/op new time/op delta
Now 19.6ns ± 1% 9.7ns ± 1% -50.63% (p=0.000 n=41+49) darwin/amd64
Now 23.5ns ± 4% 10.6ns ± 5% -54.61% (p=0.000 n=30+28) windows/amd64
Now 54.5ns ± 5% 29.8ns ± 9% -45.40% (p=0.000 n=27+29) windows/386
More importantly, compared to Go 1.8:
name old time/op new time/op delta
Now 9.5ns ± 1% 9.7ns ± 1% +1.94% (p=0.000 n=41+49) darwin/amd64
Now 12.9ns ± 5% 10.6ns ± 5% -17.73% (p=0.000 n=30+28) windows/amd64
Now 15.3ns ± 5% 29.8ns ± 9% +94.36% (p=0.000 n=30+29) windows/386
This brings time.Now back in line with Go 1.8 on darwin/amd64 and windows/amd64.
It's not obvious why windows/386 is still noticeably worse than Go 1.8,
but it's better than before this CL. The windows/386 speed is not too
important; the changes just keep the two architectures similar.
Change-Id: If69b94970c8a1a57910a371ee91e0d4e82e46c5d
Reviewed-on: https://go-review.googlesource.com/36428
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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