cadvisor/utils/procfs/jiffy.go
2014-07-25 13:56:30 -04:00

34 lines
901 B
Go

// Copyright 2014 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package procfs
/*
#include <unistd.h>
*/
import "C"
import "time"
var userHz uint64
func init() {
userHzLong := C.sysconf(C._SC_CLK_TCK)
userHz = uint64(userHzLong)
}
func JiffiesToDuration(jiffies uint64) time.Duration {
d := jiffies * 1000000000 / userHz
return time.Duration(d)
}