Huge I/O wait while load testing KDC
ss488 at cornell.edu
Mon Jan 21 16:52:11 EST 2008
I have an MIT KDC installed on multiprocessor machine with RHEL-4. I
noticed two things:
a) I see > 80% time spent in i/o (based on sar output)
The only major i/o would be logs and replay cache (most of the i/o
was writes). I was wondering if there was a way to turn of logging and/or
replay cache. I am looking for runtime options or any suggestions to
improve replay cache i/o performance.
b) I also noticed that kerberos was using only one processor, is there a
recommended way to configure KDC on a multi processor machine so that I
could use other processors.
Thank you for your time.
Cornell Information Technologies
120 Maple Avenue
Ability may get you to the top, but only character will keep you there .....
More information about the krbdev