topsyscall man page on Darwin

topsyscall man page on Darwin

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topsyscall(1m)			 USER COMMANDS			topsyscall(1m)

NAME
       topsyscall - top syscalls by syscall name. Uses DTrace.

SYNOPSIS
       topsyscall [-Cs] [interval [count]]

DESCRIPTION
       This  program  continually prints a report of the top system calls, and
       refreshes the display every 1 second or as  specified  at  the  command
       line.

       Since  this  uses  DTrace, only users with root privileges can run this
       command.

OPTIONS
       -C     don't clear the screen

       -s     print per second values

EXAMPLES
       Default output, 1 second updates,
	      # topsyscall

       Print every 5 seconds,
	      # topsyscall 5

       Print a scrolling output,
	      # topsyscall -C

FIELDS
       load avg
	      load averages, see uptime(1)

       syscalls
	      total syscalls in this interval

       syscalls/s
	      syscalls per second

       SYSCALL
	      system call name

       COUNT  total syscalls in this interval

       COUNT/s
	      syscalls per second

DOCUMENTATION
       See the DTraceToolkit for further documentation under the  Docs	direc‐
       tory. The DTraceToolkit docs may include full worked examples with ver‐
       bose descriptions explaining the output.

EXIT
       topsyscall will run until Ctrl-C is hit, or the specified  interval  is
       reached.

AUTHOR
       Brendan Gregg [Sydney, Australia]

SEE ALSO
       dtrace(1M), prstat(1M)

version 0.90			 Jun 13, 2005			topsyscall(1m)

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