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doc: go1.12: clarify use of MADV_FREE

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Fixes #29337

Change-Id: I1d632d19058c63dac8e25d2a5ad55555c1aec9d4
Reviewed-on: https://go-review.googlesource.com/c/155438
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Ian Lance Taylor 2018-12-20 15:30:31 -08:00
parent ae68cf4c53
commit 5de0c37ecf
1 changed files with 3 additions and 4 deletions
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doc/go1.12.html
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@ -314,10 +314,9 @@ for {
</p>
<p><!-- CL 135395 -->
On Linux, the Go runtime now releases memory back to the operating
system only when the OS is under memory pressure. This is more
efficient, but means a process's RSS (resident set size) won't
decrease unless the OS is running out of memory.
On Linux, the runtime now uses MADV_FREE 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.
</p>
<p><!-- CL 149578 -->