github.com/aloncn/graphics-go@v0.0.1/src/runtime/os_darwin_arm64.go (about)

     1  // Copyright 2014 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package runtime
     6  
     7  //go:nosplit
     8  func cputicks() int64 {
     9  	// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand1().
    10  	// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
    11  	// TODO: need more entropy to better seed fastrand1.
    12  	return nanotime()
    13  }