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| author | Russ Cox <rsc@golang.org> | 2015-12-04 23:16:50 -0500 |
|---|---|---|
| committer | Brad Fitzpatrick <bradfitz@golang.org> | 2015-12-05 20:16:35 +0000 |
| commit | c5a94ba24fd0392bab2c5b2404a820dbf6bc7346 (patch) | |
| tree | a58360d0bd607dfe239fc0ecde6fe7ca66001cae /src/runtime/debug.go | |
| parent | 025e9b0ca32dd8a2ed5792eeecd8b8aa2ea068a8 (diff) | |
| download | go-c5a94ba24fd0392bab2c5b2404a820dbf6bc7346.tar.gz go-c5a94ba24fd0392bab2c5b2404a820dbf6bc7346.zip | |
runtime: document that NumCPU does not change
Fixes #11609.
Change-Id: I3cf64164fde28ebf739706728b84d8ef5b6dc90e
Reviewed-on: https://go-review.googlesource.com/17456
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/runtime/debug.go')
| -rw-r--r-- | src/runtime/debug.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/runtime/debug.go b/src/runtime/debug.go index ac61173b7f..0f5936566e 100644 --- a/src/runtime/debug.go +++ b/src/runtime/debug.go @@ -35,6 +35,10 @@ func GOMAXPROCS(n int) int { } // NumCPU returns the number of logical CPUs usable by the current process. +// +// The set of available CPUs is checked by querying the operating system +// at process startup. Changes to operating system CPU allocation after +// process startup are not reflected. func NumCPU() int { return int(ncpu) } |