lrita

# stap -g inject_accept.stp $pid
%{
#include <net/sock.h>
%}

function set_sock_keepalive:long(fd) %{
  int err = -1;
  int keepalive = 1;
  struct socket *sock = sockfd_lookup(STAP_ARG_fd, &err);
  if (sock != NULL) {

lrita

// +build !race

package sync1

import "unsafe"

const enabled = false

func Acquire(addr unsafe.Pointer)             {}
func Release(addr unsafe.Pointer)             {}

lrita

// This code is used for testing the cost of mutex contention.
// If there are a lot goroutines fetch a mutex simultaneously,
// those goroutines will be woke up slowly which are waiting for
// the mutex.
package main

import (
	"flag"
	"image"
	"image/color"

lrita

package main

import (
	"fmt"
	"math"
)

func C(N, K int64) float64 {
	a, b := 1.0, 1.0
	if N == 0 {