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net: remove the alloc from ReadMsgUDPAddrPort

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name                          old time/op    new time/op    delta
ReadWriteMsgUDPAddrPort-8       4.95µs ± 5%    4.55µs ± 1%    -7.96%  (p=0.016 n=5+4)

name                          old alloc/op   new alloc/op   delta
ReadWriteMsgUDPAddrPort-8        32.0B ± 0%      0.0B       -100.00%  (p=0.008 n=5+5)

name                          old allocs/op  new allocs/op  delta
ReadWriteMsgUDPAddrPort-8         1.00 ± 0%      0.00       -100.00%  (p=0.008 n=5+5)

Change-Id: Ib968c6f2968926ec9a364dd52063cd0d7c29b10c
Reviewed-on: https://go-review.googlesource.com/c/go/+/360862
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2021-11-03 14:42:52 -07:00
parent bfd74fd422
commit 37634eeff9
8 changed files with 195 additions and 13 deletions
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8
src/internal/syscall/unix/net.go
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@ -34,3 +34,11 @@ func SendmsgNInet4(fd int, p, oob []byte, to syscall.SockaddrInet4, flags int) (
//go:linkname SendmsgNInet6 syscall.sendmsgNInet6
//go:noescape
func SendmsgNInet6(fd int, p, oob []byte, to syscall.SockaddrInet6, flags int) (n int, err error)
//go:linkname RecvmsgInet4 syscall.recvmsgInet4
//go:noescape
func RecvmsgInet4(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet4) (n, oobn int, recvflags int, err error)
//go:linkname RecvmsgInet6 syscall.recvmsgInet6
//go:noescape
func RecvmsgInet6(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet6) (n, oobn int, recvflags int, err error)