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author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2020-04-21 05:21:09 -0400 |
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committer | GitHub <noreply@github.com> | 2020-04-21 05:21:09 -0400 |
commit | 47d99fb6253238e7603fc96d5b9bbb14f1e8c948 (patch) | |
tree | 23f7e52d04fe78df60ba1a94c1ef5e7106ff8e82 /pkg/sysinfo/numcpu_linux.go | |
parent | 8884f6a4f357ea64ad5f20f791ec0a09bdd36352 (diff) | |
parent | 532c7343a9af5fbdcc682f7f93c987b1f1e49b41 (diff) | |
download | podman-47d99fb6253238e7603fc96d5b9bbb14f1e8c948.tar.gz podman-47d99fb6253238e7603fc96d5b9bbb14f1e8c948.tar.bz2 podman-47d99fb6253238e7603fc96d5b9bbb14f1e8c948.zip |
Merge pull request #5647 from rhatdan/containers.conf
Update podmanV2 to use containers.conf
Diffstat (limited to 'pkg/sysinfo/numcpu_linux.go')
-rw-r--r-- | pkg/sysinfo/numcpu_linux.go | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/pkg/sysinfo/numcpu_linux.go b/pkg/sysinfo/numcpu_linux.go deleted file mode 100644 index f1d2d9db3..000000000 --- a/pkg/sysinfo/numcpu_linux.go +++ /dev/null @@ -1,44 +0,0 @@ -// +build linux - -package sysinfo - -import ( - "runtime" - "unsafe" - - "golang.org/x/sys/unix" -) - -// numCPU queries the system for the count of threads available -// for use to this process. -// -// Issues two syscalls. -// Returns 0 on errors. Use |runtime.NumCPU| in that case. -func numCPU() int { - // Gets the affinity mask for a process: The very one invoking this function. - pid, _, _ := unix.RawSyscall(unix.SYS_GETPID, 0, 0, 0) - - var mask [1024 / 64]uintptr - _, _, err := unix.RawSyscall(unix.SYS_SCHED_GETAFFINITY, pid, uintptr(len(mask)*8), uintptr(unsafe.Pointer(&mask[0]))) - if err != 0 { - return 0 - } - - // For every available thread a bit is set in the mask. - ncpu := 0 - for _, e := range mask { - if e == 0 { - continue - } - ncpu += int(popcnt(uint64(e))) - } - return ncpu -} - -// NumCPU returns the number of CPUs which are currently online -func NumCPU() int { - if ncpu := numCPU(); ncpu > 0 { - return ncpu - } - return runtime.NumCPU() -} |