* Anant Nitya <[email protected]> wrote:
> Hi
>
> Been testing this version of CFS from last an hour or so and still
> facing same lag problems while browsing sites with heavy JS and or
> flash usage. Mouse movement is pathetic and audio starts to skip. I
> haven't face this behavior with CFS till v11.
i have just tried 5 different versions of the Flash plugin and i cannot
reproduce this (flash games are still smooth and acceptable even with
the system significantly overloaded with 5 infite loops or with a kernel
build), so it would be nice if you could help me debug this problem.
The last version that worked for you was v11, correct? The biggest v11
-> v12 change was the yield workaround, and while testing your workload
i also noticed that all Flash versions except the latest one (9.0 r31)
use sys_sched_yield() quite frequently. So it would be nice to know
which plugin version you are using (and which Firefox version): you can
check that by typing about:plugins into firefox. Furthermore, could you
also try the following tune:
echo 0 > /proc/sys/kernel/sched_yield_bug_workaround
and this:
echo 2 > /proc/sys/kernel/sched_yield_bug_workaround
if none of this changes behavior then please send me the output of the
following:
strace -ttt -TTT -o strace.txt -f -p `pidof firefox-bin`
< reproduce the lag in firefox >
< Ctrl-C the strace >
and send me the strace.txt file (off-line, it's going to be large).
Thanks,
Ingo
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