Josh Carroll wrote:
OK, can you obtain a schedgraph trace when the problem is manifesting?
See /usr/src/tools/sched/ and previous discussion in this or related
threads.
Anyone? Time is rapidly running out to get this fixed in time for
7.0-RELEASE, so we need this trace ASAP.
Kris,
I would be happy to try to reproduce this and provide the necessary
trace/debug info, however I admit at this point I'm not sure which set
of kernel configuration and/or setup is causing the issue.
As I said in a previous message, I solved the jerkiness by using
moused and pointing xorg.conf to /dev/sysmouse. Shall I try with
/dev/psm0 instead and provide the schedgraph info? Or is enabling
PREEMPTION (which I have done in my custom kernel) already "fixing"
this for me, and therefore should I use a GENERIC kernel, just
substituting SCHED_4BSD with SCHED_ULE?
The problems I am currently interested in are people who have not found
an acceptable workaround for their performance problems :)
There are outstanding reports of people for whom (as I understand it)
neither scheduler performs well on UP 7.0 systems when running X,
compared to the same version of X on 6.x. i.e. there seems to be some
kind of regression that we need to understand and then fix.
Kris
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