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

topsyscall - top syscalls by syscall name. Uses DTrace.

topsyscall [-Cs] [interval [count]]

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.

don't clear the screen
print per second values

# topsyscall
# topsyscall 5
# topsyscall -C

load averages, see uptime(1)
total syscalls in this interval
syscalls per second
system call name
total syscalls in this interval
syscalls per second

See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with verbose descriptions explaining the output.

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

Brendan Gregg [Sydney, Australia]

dtrace(1M), prstat(1M)

June 13, 2005 version 0.90