topsyscall(1m) USER COMMANDS topsyscall(1m)NAMEtopsyscall - top syscalls by syscall name. Uses DTrace.
SYNOPSIStopsyscall [-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.
EXITtopsyscall will run until Ctrl-C is hit, or the specified interval is
reached.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSOdtrace(1M), prstat(1M)version 0.90 Jun 13, 2005 topsyscall(1m)