10-07-2012
[Linux] How much time a process waited for CPU?
Hi,
Is it possible in Linux to find out how much time a process waited for CPU?
In Solaris we can see it in prstat.
Thanks
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LEARN ABOUT OSX
topsysproc
topsysproc(1m) USER COMMANDS topsysproc(1m)
NAME
topsysproc - top syscalls by process name. Uses DTrace.
SYNOPSIS
topsysproc [-Cs] [interval [count]]
DESCRIPTION
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 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,
# topsysproc
Print every 5 seconds,
# topsysproc 5
Print a scrolling output,
# topsysproc -C
FIELDS
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
NOTES
There may be several PIDs with the same process name.
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
topsysproc will run until Ctrl-C is hit.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO
dtrace(1M), prstat(1M)
version 0.90 Jun 13, 2005 topsysproc(1m)