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Diffstat (limited to 'pkg/sysinfo/numcpu_linux.go')
-rw-r--r--pkg/sysinfo/numcpu_linux.go44
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()
-}