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doc: document Windows os.ReadDir improvements

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For #61422.

Change-Id: Icc1868ef9516766d0f422849866ef8de27bfa4c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/549275
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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qmuntal 2023-12-12 19:20:24 +01:00 committed by Quim Muntal
parent 3b55377394
commit 6396a42b99
1 changed files with 9 additions and 0 deletions
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doc/go1.22.html
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@ -691,6 +691,15 @@ defer func() {
On Windows, passing <a href="/pkg/os#O_SYNC"><code>O_SYNC</code></a> to <a href="/pkg/os#OpenFile"><code>OpenFile</code></a> now causes write operations to go directly to disk, equivalent to <code>O_SYNC</code> on Unix platforms.
</p>
<p><!-- CL 452995 -->
On Windows, the <a href="/pkg/os#ReadDir"><code>ReadDir</code></a>,
<a href="/pkg/os#File.ReadDir"><code>File.ReadDir</code></a>,
<a href="/pkg/os#File.Readdir"><code>File.Readdir</code></a>,
and <a href="/pkg/os#File.Readdirnames"><code>File.Readdirnames</code></a> functions
now read directory entries in batches to reduce the number of system calls,
improving performance up to 30%.
</p>
<p><!-- https://go.dev/issue/58808 -->
When <a href="/pkg/io#Copy"><code>io.Copy</code></a> copies
from a <code>File</code> to a <code>net.UnixConn</code>,