[Bug 131094] Re: Heavy Disk I/O harms desktop responsiveness

[theparanoidone]

Greetings~

I am not sure if my team is suffering from the problems described in
this thread... but we've been having very strange i/o problems.

We have also found a slight solution:

Compile the kernel with:
CONFIG_HZ_1000=y 
CONFIG_HZ=1000

(as opposed to CONFIG_HZ_100=y  CONFIG_HZ=100)

I say slight because things run *much* better... however, I don't think
it's the complete fix.  This has sped things up quite a bit in our test
cases.  (I have yet to run the ProcessSchedulerTest.cpp attached to this
thread, but I will do this asap and report back our findings).  Feel
free to post your results if you beat me to it.

(For those interested in the scenario we have been facing... you can reference my forum post here... but I think it would be best if people keep their feedback here at bugs.launchpad.net...  here's the scenario:
http://ubuntuforums.org/showthread.php?t=1039476
(I'll post feedback about our sysbench test on a 2.6.15 or early kernel as soon as I can)

-- 
Heavy Disk I/O harms desktop responsiveness
https://bugs.launchpad.net/bugs/131094
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