| Server IP : 216.250.13.251 / Your IP : 216.73.217.100 Web Server : nginx/1.24.0 System : Linux gunay 6.8.0-134-generic #134-Ubuntu SMP PREEMPT_DYNAMIC Fri Jun 26 18:43:11 UTC 2026 x86_64 User : root ( 0) 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 : /usr/share/doc/bpftrace/examples/ |
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Demonstrations of syscount, the Linux bpftrace/eBPF version. syscount counts system calls, and prints summaries of the top ten syscall IDs, and the top ten process names making syscalls. For example: # ./syscount.bt Attaching 3 probes... Counting syscalls... Hit Ctrl-C to end. ^C Top 10 syscalls IDs: @syscall[6]: 36862 @syscall[21]: 42189 @syscall[13]: 44532 @syscall[12]: 58456 @syscall[9]: 82113 @syscall[8]: 95575 @syscall[5]: 147658 @syscall[3]: 163269 @syscall[2]: 270801 @syscall[4]: 326333 Top 10 processes: @process[rm]: 14360 @process[tail]: 16011 @process[objtool]: 20767 @process[fixdep]: 28489 @process[as]: 48982 @process[gcc]: 90652 @process[command-not-fou]: 172874 @process[sh]: 270515 @process[cc1]: 482888 @process[make]: 1404065 The above output was traced during a Linux kernel build, and the process name with the most syscalls was "make" with 1,404,065 syscalls while tracing. The highest syscall ID was 4, which is stat(). There is another version of this tool in bcc: https://github.com/iovisor/bcc The bcc version provides different command line options, and translates the syscall IDs to their syscall names.