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Commit Graph

54064 Commits

Author SHA1 Message Date
cuiweixie
a8237ba61a go/ast: using strings.Builder
Change-Id: I05ebaf4e11b5b6ca7d9bbb0b2241def7773b11cc
Reviewed-on: https://go-review.googlesource.com/c/go/+/428138
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: xie cui <523516579@qq.com>
2022-09-06 21:50:49 +00:00
Cuong Manh Le
ef69718dd7 all: make sure *Pointer[T]'s methods are inlined as intended
Updates #50860

Change-Id: I65bced707e50364b16edf4b087c541cf19bb1778
Reviewed-on: https://go-review.googlesource.com/c/go/+/428362
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2022-09-06 18:16:03 +00:00
Tobias Klauser
00234b052e internal/poll, internal/syscall/unix, net: enable writev on solaris
The writev syscall is available since at least Solaris 11.3.

Reuse the existing illumos writev wrapper on solaris to implement
internal/poll.writev for net.(*netFD).writeBuffers.

Change-Id: I23adc3bb4637740c72bfb61bfa9697b432dfe3db
Reviewed-on: https://go-review.googlesource.com/c/go/+/427714
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
2022-09-06 18:06:02 +00:00
cuiweixie
e0e0c8fe98 mime: use strings.Builder
Change-Id: I2756fab046154a2df49435ba1978a32176de830a
Reviewed-on: https://go-review.googlesource.com/c/go/+/428265
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: xie cui <523516579@qq.com>
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Reviewed-by: Robert Griesemer <gri@google.com>
2022-09-06 17:36:47 +00:00
cuiweixie
3b044e9c7e net/http/cgi: use strings.Builder
Change-Id: Ie5a8ae104970237e6e33e75cae807c436bcd08e9
Reviewed-on: https://go-review.googlesource.com/c/go/+/428268
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 17:34:50 +00:00
cuiweixie
8f14a4602d net/http/httptrace: use strings.Builder
Change-Id: I407d11b43349cd78b709deb7b0e774bd93922caa
Reviewed-on: https://go-review.googlesource.com/c/go/+/428269
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2022-09-06 17:34:30 +00:00
cuiweixie
ce8dcd9879 net/http/httputil: use strings.Builder
Change-Id: Ifb51413894791154489bd1d4f529088958212c62
Reviewed-on: https://go-review.googlesource.com/c/go/+/428270
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Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-09-06 17:34:07 +00:00
cuiweixie
1207ee896c cmd/doc: use strings.Builder
Change-Id: Ib33d1f1c2e9aed0cb9e00bd699c4ae4a2df5dfca
Reviewed-on: https://go-review.googlesource.com/c/go/+/428288
Run-TryBot: Rob Pike <r@golang.org>
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Reviewed-by: Rob Pike <r@golang.org>
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Reviewed-by: Damien Neil <dneil@google.com>
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2022-09-06 17:12:04 +00:00
Daniel Martí
fbf452a89f runtime: remove unused parameter on runOpenDeferFrame
Found via unparam.

Change-Id: I21126405beaf0be84e14ac165ecb68aeb0c9c823
Reviewed-on: https://go-review.googlesource.com/c/go/+/427014
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: hopehook <hopehook@golangcn.org>
2022-09-06 17:05:15 +00:00
Damien Neil
dc629ec939 net/http: make triv.go example less insecure
The triv.go example serves the entire contents of $HOME by default.
That seems bad, let's not do that.

Also change it to listen on localhost only.

Change-Id: I8f1b7bd6b7d737852273e2ba82deabc4a2d11f6b
Reviewed-on: https://go-review.googlesource.com/c/go/+/428237
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Tatiana Bradley <tatiana@golang.org>
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2022-09-06 17:03:18 +00:00
Tobias Klauser
e1e88d636b net: mark withTCPConnPair as test helper
Noticed while analyzing test failures on go.dev/cl/427714 that were
pointing to withTCPConnPair instead of the failing tests.

Change-Id: Ie2366962c2253e0c2a6546d3b7f43a96390bc7bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/428456
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
2022-09-06 16:59:58 +00:00
Sasha Melentyev
b71ca76065 debug/buildinfo: remove redundant type conversion
Change-Id: Ia8ffc9a17646ad2c74f633610aaf34fef006c023
GitHub-Last-Rev: 6ab0d10739
GitHub-Pull-Request: golang/go#54856
Reviewed-on: https://go-review.googlesource.com/c/go/+/428235
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-09-06 16:59:51 +00:00
Andy Pan
efa357ce3c net: add benchmark test for SendFile
BenchmarkSendFile/1024-4                  716760              1582 ns/op         647.31 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/2048-4                  624632              2057 ns/op         995.55 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/4096-4                  429459              2665 ns/op        1537.06 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/8192-4                  275941              4996 ns/op        1639.56 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/16384-4                 149577              8522 ns/op        1922.58 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/32768-4                  75427             14791 ns/op        2215.47 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/65536-4                  43912             28402 ns/op        2307.41 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/131072-4                 23509             48657 ns/op        2693.82 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/262144-4                 12512             91791 ns/op        2855.87 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/524288-4                  5760            579891 ns/op         904.12 MB/s           0 B/op          0 allocs/op
BenchmarkSendFile/1048576-4                 3020            344129 ns/op        3047.05 MB/s           0 B/op          0 allocs/op

Change-Id: Iaf75e19c9ae8d77b89b3eabb2e9142f59c124536
Reviewed-on: https://go-review.googlesource.com/c/go/+/425878
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 16:58:27 +00:00
Andy Pan
979956a732 os: delete unused errClosed
errClosed was introduced by CL 163058 and was supposed to be removed by CL 243906,
but somehow it was left out, now we should get it deleted.

Change-Id: I74c4b36b8bbc4844e1860acb022a16b0aa3272b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/427035
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-09-06 16:57:58 +00:00
Tobias Klauser
dc029f286e runtime: add missing copyright header to signal_windows_test.go
The file was added in CL 181839 which was submitted in 2019.

Also delete the superfluous //go:build windows build constraint which is
already part of the file name.

Change-Id: Iecdf3d75848a7b8e2a76cd18c9fff4fb90acdac2
Reviewed-on: https://go-review.googlesource.com/c/go/+/427854
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
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2022-09-06 16:53:53 +00:00
cuiweixie
1110222bee sync: convert Once.done to atomic type
Change-Id: I49f8c764d49cabaad4d6859c219ba7220a389c1f
Reviewed-on: https://go-review.googlesource.com/c/go/+/427140
Run-TryBot: xie cui <523516579@qq.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 16:53:51 +00:00
Alok Menghrajani
9363f356bd math/big: replace dead link in a comment with link to an archive.org copy
Happy to use another service if web.archive.org isn't suitable.

Note: the original page redirects and then links to some nsfw content.

Change-Id: Ie93ca0c6aad871881f35b7e5609b96da5c14cfc0
GitHub-Last-Rev: ced5a97eb5
GitHub-Pull-Request: golang/go#54857
Reviewed-on: https://go-review.googlesource.com/c/go/+/428236
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Keith Randall <khr@google.com>
2022-09-06 16:37:29 +00:00
Austin Clements
60ef4b2c1e runtime: in traceback, only jump stack if M doesn't change
CL 424257 modified gentraceback to switch gp when jumping from a
system stack to a user stack to simplify reasoning through the rest of
the function. This has the unintended side-effect of also switching
all references to gp.m. The vast majority of the time, g0.m and curg.m
are the same across a stack switch, making this a no-op, but there's
at least one case where this isn't true: if a profiling signal happens
in execute between setting mp.curg and setting gp.m. In this case,
mp.curg.m is briefly nil, which can cause gentraceback to crash with a
nil pointer dereference. We see this failure (surprisingly
frequently!) in profiling tests in the morestack=mayMoreStackPreempt
testing mode (#48297).

Fix this by making only jumping stacks if doing so will not switch Ms.
This restores the original property that gp.m doesn't change across
the stack jump, and makes gentraceback a little more conservative
about jumping stacks.

Fixes #54885.

Change-Id: Ib1524c41c748eeff35896e0f3abf9a7efbe5969f
Reviewed-on: https://go-review.googlesource.com/c/go/+/428656
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Austin Clements <austin@google.com>
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2022-09-06 16:04:07 +00:00
cuiweixie
e3885c4ee5 log: use strings.Builder
Change-Id: I02c4664f1ba72623a5470e92bbebabb2f4862428
Reviewed-on: https://go-review.googlesource.com/c/go/+/428264
Reviewed-by: Robert Griesemer <gri@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:49:33 +00:00
cuiweixie
7c47c9773c io: use strings.Builder
Change-Id: Ibab20627ccd1f79e77e3972e2bc6ca42c2c7de13
Reviewed-on: https://go-review.googlesource.com/c/go/+/428263
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2022-09-06 15:49:32 +00:00
cuiweixie
c35bc69c97 image/jpeg: use strings.Builder
Change-Id: I0a51aa9e7800689c123ce3eaf74742a4641b7681
Reviewed-on: https://go-review.googlesource.com/c/go/+/428261
Auto-Submit: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:49:30 +00:00
cuiweixie
07b19bf5ab html/template: use strings.Builder
Change-Id: Iab6ef8c6c74c09e8358f7d7088a82089725479ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/428260
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:48:16 +00:00
cuiweixie
91a1b55489 flag: use strings.Builder
Change-Id: Iee846c4ac0f111ff97aa618dd42f6b2d14aa4342
Reviewed-on: https://go-review.googlesource.com/c/go/+/428259
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2022-09-06 15:47:09 +00:00
cuiweixie
ab87db8b46 encoding: use strings.Builder
Change-Id: Ib07699df8ea41fd8d1bca8ad050859fac24623de
Reviewed-on: https://go-review.googlesource.com/c/go/+/428258
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:46:20 +00:00
cuiweixie
a89c3d76ba debug: use strings.Builder
Change-Id: I59db11212758b478248f34c031501a167335348c
Reviewed-on: https://go-review.googlesource.com/c/go/+/428257
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:44:55 +00:00
cuiweixie
32f68b5ab7 bufio: use strings.Builder
Change-Id: Ief82f12a5c48c46165c28140997d5fc83700c758
Reviewed-on: https://go-review.googlesource.com/c/go/+/428256
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:44:28 +00:00
cuiweixie
6fcd9b42e7 archive: use strings.Builder
Change-Id: I07e022ffc022bca6aa12165871e723db3ed83141
Reviewed-on: https://go-review.googlesource.com/c/go/+/428255
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:44:27 +00:00
cuiweixie
c761409e01 misc: use strings.Builder
Change-Id: Icb53d32f2de13287b1b4f4f67dab90fe5ee7a3df
Reviewed-on: https://go-review.googlesource.com/c/go/+/428254
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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2022-09-06 15:44:25 +00:00
Daniel Martí
a60a3dc5bc Revert "runtime: convert local var stop,ready at TestDebugCallUnsafePoint to atomic type"
This reverts https://go.dev/cl/427135.

Reason for revert: broke the test it modified on linux-amd64-noopt.

    --- FAIL: TestDebugCallUnsafePoint (0.00s)
        debug_test.go:265: want "call not at safe point", got %!s(<nil>)

Change-Id: I044c9720aed2d5e48b56bd7ab2781462270dcae9
Reviewed-on: https://go-review.googlesource.com/c/go/+/428395
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Reviewed-by: Bryan Mills <bcmills@google.com>
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2022-09-06 14:44:23 +00:00
cuiweixie
8a32354219 internal/trace: use strings.Builder
Change-Id: Ic7f827b8ee758c991ed76be65026b0330207deea
Reviewed-on: https://go-review.googlesource.com/c/go/+/428262
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-06 12:35:13 +00:00
Daniel Martí
1c50484335 Revert "internal/poll: drop redundant ENOSYS and EXDEV error checks in CopyFileRange()"
This reverts https://go.dev/cl/425881.

Reason for revert: broke make.bash on linux/amd64 with Linux 5.19.6.

	[...]
	Building Go toolchain2 using go_bootstrap and Go toolchain1.
	go install internal/unsafeheader: copying /tmp/go-build4206185186/b007/_pkg_.a to /home/mvdan/tip/pkg/linux_amd64/internal/unsafeheader.a: write /home/mvdan/tip/pkg/linux_amd64/internal/unsafeheader.a: copy_file_range: invalid cross-device link
	go install internal/goarch: copying /tmp/go-build4206185186/b006/_pkg_.a to /home/mvdan/tip/pkg/linux_amd64/internal/goarch.a: write /home/mvdan/tip/pkg/linux_amd64/internal/goarch.a: copy_file_range: invalid cross-device link
	[...]

Change-Id: I793856935d4315a870c2d31da46be00cc342b5f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/428396
Reviewed-by: Wayne Zuo <wdvxdr@golangcn.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: hopehook <hopehook@golangcn.org>
Reviewed-by: Andy Pan <panjf2000@gmail.com>
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Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
2022-09-06 11:14:09 +00:00
Kir Kolyshkin
4c1ca42aa2 internal/syscall/unix: KernelVersion nitpicks
A few minor improvements for KernelVersion for the sake of readability.

Change-Id: I06d2df60ecee8ee0ae603952470fb73e7dcd5d74
Reviewed-on: https://go-review.googlesource.com/c/go/+/427676
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
2022-09-05 21:39:28 +00:00
Kir Kolyshkin
e2e69ec82a internal/syscall/unix: simplify KernelVersion
Since values[2] elements are initialized with 0, the switch statement
doesn't do anything. Remove it.

Change-Id: I41176692cdf0c01fe8e85315f0c0dc8b0f3d41fd
Reviewed-on: https://go-review.googlesource.com/c/go/+/427675
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2022-09-05 21:39:15 +00:00
Leonard Wang
bd5595d7fa runtime: refactor finalizer goroutine status
Use an atomic.Uint32 to represent the state of finalizer goroutine.
fingStatus will only be changed to fingWake in non fingWait state,
so it is safe to set fingRunningFinalizer status in runfinq.

name            old time/op  new time/op  delta
Finalizer-8      592µs ± 4%   561µs ± 1%  -5.22%  (p=0.000 n=10+10)
FinalizerRun-8   694ns ± 6%   675ns ± 7%    ~     (p=0.059 n=9+8)

Change-Id: I7e4da30cec98ce99f7d8cf4c97f933a8a2d1cae1
Reviewed-on: https://go-review.googlesource.com/c/go/+/400134
Reviewed-by: Joedian Reid <joedian@golang.org>
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2022-09-05 08:28:34 +00:00
cuiweixie
67e6542467 go/ast: add Range token.Pos to RangeStmt
For #50429

Change-Id: Idb027244f901d9f482c894b5b979a054d0f07de5
Reviewed-on: https://go-review.googlesource.com/c/go/+/426091
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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2022-09-05 08:12:37 +00:00
Andy Pan
40ced0c00b internal/poll: drop redundant ENOSYS and EXDEV error checks in CopyFileRange()
The initial CL 229101 didn't limit the kernel version, but relies on error checking to
ensure the kernel version >= 4.5 or >= 5.3 when it's calling copy_file_range(2) to copy data across file systems.

Since we have now put the kernel version checking at the beginning of the function, introduced by CL 268338,
which returns early instead of going forward to the code behind when the kernel verion is older than 5.3,
therefore, those subsequent related error checks are no longer needed.

Change-Id: Ifc4a530723e21f0bde91d6420cde9cb676081922
Reviewed-on: https://go-review.googlesource.com/c/go/+/425881
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Reviewed-by: Heschi Kreinick <heschi@google.com>
2022-09-05 08:10:03 +00:00
cuiweixie
af7f417665 runtime: convert local var stop at TestAfterStress to atomic type
For #53821

Change-Id: I7e86dac34691f7752f68879ff379061f3435cd45
Reviewed-on: https://go-review.googlesource.com/c/go/+/427139
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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2022-09-05 08:08:24 +00:00
cuiweixie
4ad55cd93f runtime: convert local var started,progress at TestStackGrowth to atomic type
For #53821

Change-Id: I9c777ff642ea4b70073335279551cea6a2394569
Reviewed-on: https://go-review.googlesource.com/c/go/+/427138
Run-TryBot: xie cui <523516579@qq.com>
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2022-09-05 08:08:18 +00:00
cuiweixie
02700e55a5 runtime: convert local var cunlock at doTestParallelReaders to atomic type
For #53821

Change-Id: I17440ea30827976a8d3755851a2496f26aea13b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/427137
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2022-09-05 08:08:09 +00:00
cuiweixie
7d83d320c0 runtime: convert local var ready at TestMemmoveAtomicity to atomic type
For #53821

Change-Id: I2487b8d18a4cd3fc6e64fbbb531419812bfe0f08
Reviewed-on: https://go-review.googlesource.com/c/go/+/427136
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2022-09-05 08:07:56 +00:00
cuiweixie
357b922517 runtime: convert local var stop,ready at TestDebugCallUnsafePoint to atomic type
For #53821

Change-Id: Id972d4ccadc72de69dea46f8be146c9843d1d095
Reviewed-on: https://go-review.googlesource.com/c/go/+/427135
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: xie cui <523516579@qq.com>
Reviewed-by: Heschi Kreinick <heschi@google.com>
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2022-09-05 08:07:47 +00:00
Eliza Weisman
4e7e7ae140 net/http: don't time out idle server connections after ReadHeaderTimeout
Consistently wait for idle connections to become readable before
starting the ReadHeaderTimeout timer. Previously, connections with no
idle timeout skipped directly to reading headers, so the
ReadHeaderTimeout also included time spent idle.

Fixes #54784

Change-Id: Iff1a876f00311d03dfa0fbef5b577506c62f7c41
GitHub-Last-Rev: 09332743ad
GitHub-Pull-Request: golang/go#54785
Reviewed-on: https://go-review.googlesource.com/c/go/+/426895
Run-TryBot: Damien Neil <dneil@google.com>
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Reviewed-by: Benny Siegert <bsiegert@gmail.com>
2022-09-05 07:17:56 +00:00
Tomasz Jezierski
a295890c5c net: precompute rfc6724policyTable in addrselect
As net package has one of the biggest init time in standard library, I have tried to improve performance by doing two things in net/addrselect.go:
1. Precompute slice with RFC rules. Currently the rules are computed and sorted in init() function. We could save the time and allocations by using prepopulated values in sorted manner. The rules haven't changed since 2015. To be extra safe we could move order validation as test case. It should slightly speed up startup of each binary with "net" package and go dns resolver. It also saves 38 allocations, ~50% of allocations in init phase of `net` module.
2. Replace internal net.IP usage with netip.Addr in `sortByRFC6724` function. It results in ~40% performance improvement on samples from tests.

The only risk is the difference between net.IP and netip.Addr behaviour.

Init benchmark:
Init-8               1.89µs ± 2%    0.12µs ± 3%  -93.79%  (p=0.000 n=5+5)

name               old alloc/op   new alloc/op   delta
Init-8               1.05kB ± 0%    0.38kB ± 0%     ~     (zero variance)

name               old allocs/op  new allocs/op  delta
Init-8                 39.0 ± 0%       1.0 ± 0%     ~     (zero variance)

Whole sortByRFC6724 function benchmark:
name               old time/op    new time/op    delta
SortByRFC6724/0-8     463ns ± 3%     303ns ± 4%  -34.72%  (p=0.000 n=5+5)
SortByRFC6724/1-8     481ns ± 8%     306ns ± 1%  -36.46%  (p=0.000 n=5+5)
SortByRFC6724/2-8     470ns ± 4%     307ns ± 4%  -34.77%  (p=0.000 n=5+5)
SortByRFC6724/3-8     567ns ± 3%     367ns ± 3%  -35.28%  (p=0.000 n=5+5)
SortByRFC6724/4-8     918ns ± 3%     560ns ± 2%  -38.93%  (p=0.000 n=5+5)

Updates #54032

Change-Id: Ic18df1ea73805cb184c6ceb73470ca7f0b922032
Reviewed-on: https://go-review.googlesource.com/c/go/+/419356
Reviewed-by: Heschi Kreinick <heschi@google.com>
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Reviewed-by: Damien Neil <dneil@google.com>
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2022-09-05 07:16:00 +00:00
Andy Pan
3fbcf05d40 runtime: convert g.atomicstatus to internal atomic type
Note that this changes some unsynchronized operations of g.atomicstatus to synchronized operations.

Updates #53821

Change-Id: If249d62420ea09fbec39b570942f96c63669c333
Reviewed-on: https://go-review.googlesource.com/c/go/+/425363
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2022-09-05 07:14:08 +00:00
Cuong Manh Le
be26aa70d4 cmd/go: make cfg.BuildContext.ToolTags same order with build.Default.ToolTags
So it's consistent when running "go list -f '{{context.ToolTags}}'" and
printing the content of "build.Default.ToolTags".

Updates #45454

Change-Id: I7a3cbf3cdf9a6ce2b8c89e9bcf5fc5e9086d48e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/422615
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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2022-09-05 04:17:02 +00:00
Yuval Pavel Zholkover
535fe2b226 runtime: fast clock_gettime on FreeBSD, use physical/virtual ARM timer
as setup by the kernel on GOARCH=arm64.

Update #50947

Change-Id: I2f44be9b36e9ce8d264eccc0aa3df10825c5f4f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/422977
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Dmitri Goutnik <dgoutnik@gmail.com>
Run-TryBot: Yuval Pavel Zholkover <paulzhol@gmail.com>
2022-09-04 04:17:04 +00:00
Kir Kolyshkin
a73506cff5 internal/syscall/unix: consolidate kernelVersion implementations
Currently, there are 3 functions returning Linux kernel version numbers.

Two of them are identical:
 - in net, initially added by commit 0a9dd47dd817904e;
 - in internal/poll, initially added by commit 1c7650aa93bd53;

(both were later fixed by commit 66c0264506).

The third one is a more complex, regexp-based implementation in
runtime/pprof, which is only used for a test.

Instead of adding one more, let's consolidate existing ones.

Remove the complex implementation, and move the simple one into
internal/syscall/unix. Use it from all the three places mentioned above.

Change-Id: I4a34d9ca47257743c16def30e4dd634e36056091
Reviewed-on: https://go-review.googlesource.com/c/go/+/424896
Run-TryBot: Ian Lance Taylor <iant@google.com>
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2022-09-03 18:39:45 +00:00
Robert Griesemer
2392b7061c go/types, types2: use strings.Builder instead of bytes.Buffer where possible
Also, consistently use declaration: var buf strings.Builder.
We don't change exported signatures to match go/types (where we
can't change the exported signatures for backward-compatibility).

Change-Id: I75350886aa231889ae2fd5c4008dd4be9ed6e09f
Reviewed-on: https://go-review.googlesource.com/c/go/+/428094
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Reviewed-by: Robert Griesemer <gri@google.com>
2022-09-03 18:29:30 +00:00
Sasha Melentyev
7a86ef2ad8 all: use strings.Builder instead of bytes.Buffer
Change-Id: I6d7213d29ade591b8366d5640833bd5a20474165
GitHub-Last-Rev: 9419583287
GitHub-Pull-Request: golang/go#54834
Reviewed-on: https://go-review.googlesource.com/c/go/+/427814
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Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2022-09-03 18:23:33 +00:00
Kir Kolyshkin
a0f05823e4 syscall: fix skipping some tests on Linux
The kernel knob /proc/sys/kernel/unprivileged_userns_clone is
only available in Debian (and Ubuntu) kernels, so if the tests
are run on e.g. Fedora, skipUnprivilegedUserClone() skips a lot
of tests.

Modify it to treat ENOENT as "it should work".

Change-Id: I959201ede139ede989cc8ab646c9bf51e0539ada
Reviewed-on: https://go-review.googlesource.com/c/go/+/417694
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2022-09-03 18:21:45 +00:00