sar-c.d - sar -c demo in DTrace. Uses DTrace. sar-c.d This has been written to demonstrate fetching the same data as sar -c from DTrace. This program is intended as a starting point for other DTrace scripts, by beginning with familiar statistics. Since this uses DTrace, only the root user or users with the dtrace_kernel privilege can run this command. Solaris stable - needs the syscall and sysinfo providers.

Print system call counts every second, # sar-c.d

scall/s System calls

sread/s reads

swrit/s writes

fork/s forks

exec/s execs

rchar/s read characters

wchar/s write characters

David Rubio, who also wrote the original.

As this program does not use Kstat, there is no summary since boot line.

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