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DateFri, 03 Dec 2004 10:12:29 +0100
From"Prakash K. Cheemplavam" <>
SubjectRe: Time sliced CFQ io scheduler
Jens Axboe schrieb:
> On Thu, Dec 02 2004, Prakash K. Cheemplavam wrote:
> 

>> 0  3   3080   2208   1156 817712    0    0  3592 75624 1326  2289  1 36  0 
>> 63
>> 0  3   3080   2664   1156 818240    0    0  5124 15692 1302   992  1 18  0 
>> 81
>> 0  3   3080   2580   1160 815832    0    0  4356 155792 1375  1064  1 39  
>> 0 60
>> 0  3   3080   2472   1160 817124    0    0  3076 100852 1345  1138  1 23  
>> 0 76
>> 2  4   3080   2836   1148 816228    0    0  3336 100412 1352  1379  1 47  
>> 0 52
>> 0  4   3080   2708   1144 815964    0    0  3844 48908 1343   871  1 25  0 
>> 74
>> 0  3   3080   2748   1152 815984    0    0  3332 71996 1338   843  1 27  0 
>> 72
> 
> 
> Can you try with the patch that is in the parent of this thread? The
> above doesn't look that bad, although read performance could be better
> of course. But try with the patch please, I'm sure it should help you
> quite a lot.
> 

It actually got worse: Though the read rate seems accepteble, it is not, as 
interactivity is dead while writing. I cannot start porgrammes, other programmes 
which want to do i/o pretty much hang. This is only while writing. While reading 
there is no such problem.

Prakash

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procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
  r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
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  0  4   2692   5484   1756 922408    0    0  2096 73632 1450  1456  2 20  0 78[unhandled content-type:application/pgp-signature]
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