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| author | Brad Fitzpatrick <bradfitz@golang.org> | 2019-01-02 18:22:42 +0000 |
|---|---|---|
| committer | Brad Fitzpatrick <bradfitz@golang.org> | 2019-01-04 16:54:09 +0000 |
| commit | d15ffca108b81f15e9042993b80e8b91c56968c4 (patch) | |
| tree | 6c86d6d15c6bdc360ae54b9d636d7336f40507ce | |
| parent | 23c22ca42c60194c32cf9692604fb25ca38d6f30 (diff) | |
| download | go-d15ffca108b81f15e9042993b80e8b91c56968c4.tar.gz go-d15ffca108b81f15e9042993b80e8b91c56968c4.zip | |
doc/go1.12: mention Conn.SetDeadline improvements, GODEBUG=madvdontneed=1
Fixes #29439
Updates #28466
Change-Id: Ifa0779a089a969f99f1a47127e23565f31eec24f
Reviewed-on: https://go-review.googlesource.com/c/155929
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
| -rw-r--r-- | doc/go1.12.html | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/doc/go1.12.html b/doc/go1.12.html index 527a7c73d4..975550fea4 100644 --- a/doc/go1.12.html +++ b/doc/go1.12.html @@ -313,10 +313,18 @@ for { can't reuse existing heap space. </p> +<p><!-- CL 146342, CL 146340, CL 146345, CL 146339, CL 146343, CL 146337, CL 146341, CL 146338 --> + The Go runtime's timer and deadline code is faster and scales better + with higher numbers of CPUs. In particular, this improves the + performance of manipulating network connection deadlines. +</p> + <p><!-- CL 135395 --> - On Linux, the runtime now uses MADV_FREE to release unused + On Linux, the runtime now uses <code>MADV_FREE</code> to release unused memory. This is more efficient but may result in higher reported RSS. The kernel will reclaim the unused data when it is needed. + To revert to the Go 1.11 behavior (<code>MADV_DONTNEED</code>), set the + environment variable <code>GODEBUG=madvdontneed=1</code>. </p> <p><!-- CL 149578 --> |