topsysproc - top syscalls by process name. Uses DTrace. topsysproc [-Cs] [interval [count]] This program continually prints a report of the number of system calls by process name, and refreshes the display every 1 second or as specified at the command line. Similar data can be fetched with "prstat -m". Since this uses DTrace, only the root user or users with the dtrace_kernel privilege can run this command. Solaris unstable - uses the hp_avenrun kernel symbol.

-C don't clear the screen

-s print per second values

Default output, 1 second updates, # topsysproc

Print every 5 seconds, # topsysproc 5

Print a scrolling output, # topsysproc -C

load avg load averages, see uptime(1)

syscalls total syscalls in this interval

syscalls/s syscalls per second

PROCESS process name

COUNT total syscalls in this interval

COUNT/s syscalls per second

There may be several PIDs with the same process name.

See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with verbose descriptions explaining the output. topsysproc will run until Ctrl-C is hit. Brendan Gregg [Sydney, Australia] dtrace(1M), prstat(1M)