On 12/09/11 19:57, George Mitchell wrote:
On 12/09/11 10:17, Attilio Rao wrote:
[...]
More precisely I'd be interested in KTR traces.
To be even more precise:
With a completely stable GENERIC configuration (or otherwise please
post your kernel config) please add the following:
options KTR
options KTR_ENTRIES=262144
options KTR_COMPILE=(KTR_SCHED)
options KTR_MASK=(KTR_SCHED)
While you are in the middle of the slow-down (so once it is well
established) please do:
# sysclt debug.ktr.cpumask=""
wonderland# sysctl debug.ktr.cpumask=""
debug.ktr.cpumask: ffffffffffffffff
sysctl: debug.ktr.cpumask: Invalid argument
In the end go with:
# ktrdump -ctf> ktr-ule-problem.out
It's 44MB, so it's at http://www.m5p.com/~george/ktr-ule-problem.out
There have been 22 downloads of this file so far; does anyone who
looked at it have any results to report?
Dear Secret Masters of FreeBSD: Can we have a decision on whether to
change back to SCHED_4BSD while SCHED_ULE gets properly fixed?
-- George Mitchell
and send the file to this mailing list.
Thanks,
Attilio
I hope this helps. -- George Mitchell
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