| Server IP : 172.67.206.42 / Your IP : 104.23.243.51 Web Server : Apache System : Linux server.localhost.com 6.8.0-85-generic #85-Ubuntu SMP PREEMPT_DYNAMIC Thu Sep 18 15:26:59 UTC 2025 x86_64 User : pahana ( 1029) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : OFF Directory : /sbin/ |
Upload File : |
#!/usr/bin/env bpftrace
/*
* loads Prints load averages.
* For Linux, uses bpftrace and eBPF.
*
* These are the same load averages printed by "uptime", but to three decimal
* places instead of two (not that it really matters). This is really a
* demonstration of fetching and processing a kernel structure from bpftrace.
*
* USAGE: loads.bt
*
* This is a bpftrace version of a DTraceToolkit tool.
*
* Copyright 2018 Netflix, Inc.
* Licensed under the Apache License, Version 2.0 (the "License")
*
* 10-Sep-2018 Brendan Gregg Created this.
*/
BEGIN
{
printf("Reading load averages... Hit Ctrl-C to end.\n");
}
interval:s:1
{
/*
* See fs/proc/loadavg.c and include/linux/sched/loadavg.h for the
* following calculations.
*/
$avenrun = kaddr("avenrun");
$load1 = *$avenrun;
$load5 = *($avenrun + 8);
$load15 = *($avenrun + 16);
time("%H:%M:%S ");
printf("load averages: %d.%03d %d.%03d %d.%03d\n",
($load1 >> 11), (($load1 & ((1 << 11) - 1)) * 1000) >> 11,
($load5 >> 11), (($load5 & ((1 << 11) - 1)) * 1000) >> 11,
($load15 >> 11), (($load15 & ((1 << 11) - 1)) * 1000) >> 11
);
}