osx man page for topsyscall

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 directory. 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)