09-22-2011
Quote:
Originally Posted by
jlliagre
If you are ready for hacks as workaround, it would probably be easy to slow down your process when it has nothing to process. There would be several approaches to do it like an interposing library or a dtrace script.
It can also be done fairly easily with projects.
This User Gave Thanks to bartus11 For This Post:
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LEARN ABOUT MOJAVE
pridist.d
pridist.d(1m) USER COMMANDS pridist.d(1m)
NAME
pridist.d - process priority distribution. Uses DTrace.
SYNOPSIS
pridist.d
DESCRIPTION
This is a simple DTrace script that samples at 1000 Hz which process is on the CPUs, and what the priority is. A distribution plot is
printed.
With priorities, the higher the priority the better chance the process (actually, thread) has of being scheduled.
This idea came from the script /usr/demo/dtrace/profpri.d, which produces similar output for one particular PID.
Since this uses DTrace, only users with root privileges can run this command.
EXAMPLES
This samples until Ctrl-C is hit.
# pridist.d
FIELDS
CMD process name
PID process ID
value process priority
count number of samples of at least this priority
BASED ON
/usr/demo/dtrace/profpri.d
DOCUMENTATION
DTrace Guide "profile Provider" chapter (docs.sun.com)
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
pridist.d will sample until Ctrl-C is hit.
SEE ALSO
dispadmin(1M), dtrace(1M)
version 0.90 Jun 13, 2005 pridist.d(1m)