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Fix wrong CPU count after CPU hot-plugging on Windows

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This fix tries to fix wrong CPU count after CPU hot-plugging.
On windows, GetProcessAffinityMask has been used to probe the
number of CPUs in real time.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang 2016-06-25 22:14:09 -07:00
parent 4b5413396a
commit 6c046817ae
4 changed files with 47 additions and 11 deletions
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10
sysinfo/numcpu_linux.go
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@ -10,16 +10,6 @@ import (
"golang.org/x/sys/unix"
)
// Returns bit count of 1
func popcnt(x uint64) (n byte) {
x -= (x >> 1) & 0x5555555555555555
x = (x>>2)&0x3333333333333333 + x&0x3333333333333333
x += x >> 4
x &= 0x0f0f0f0f0f0f0f0f
x *= 0x0101010101010101
return byte(x >> 56)
}
// numCPU queries the system for the count of threads available
// for use to this process.
//