Odd performance problem (hitching)
doconnor at gsoft.com.au
Tue Aug 30 08:20:58 GMT 2005
On Tuesday 30 August 2005 12:20, Don Lewis wrote:
> > The hitching happens even when the system is idle so I think you can MFC
> > safely.
> I'd be most suspicious of the MNT_VNODE_FOREACH loop in ffs_sync(),
> especially if the symptoms occur every 30 seconds. Running the CPU at
> slow speed (with powerd, etc.) is likely to aggravate the problem. What
> is the value of "sysctl kern.maxvnodes"?
> You might try significantly decreasing MAXVNODES_MAX in
> sys/kern/vfs_subr.c and rebuilding your kernel.
I'll try timing when the drop outs happen :)
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
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