On Fri, 2007-09-21 at 20:27 -0700, Tong Li wrote:
> Mike,
>
> Could you try this patch to see if it solves the latency problem?
No, but it helps some when running two un-pinned busy loops, one at nice
0, and the other at nice 19. Yesterday I hit latencies of up to 1.2
_seconds_ doing this, and logging sched_debug and /proc/`pidof
Xorg`/sched from SCHED_RR shells.
se.wait_max : 164.242748
se.wait_max : 121.996128
se.wait_max : 194.464773
se.wait_max : 517.425411
se.wait_max : 131.453214
se.wait_max : 122.984190
se.wait_max : 111.729274
se.wait_max : 119.567580
se.wait_max : 126.980696
se.wait_max : 177.241452
se.wait_max : 129.604329
se.wait_max : 119.631657
It doesn't help at all with this oddity while running same:
[EMAIL PROTECTED]: now is
the time
foooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooor
aall good men to come to the aid of their country
That was a nice 0 shell window. I'm not a great typist, but I ain't
_that_ bad :)
-Mike
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
