Re: slow down in 2.6 vs 2.4

[Bill Davidsen]

Phy Prabab wrote:
> Hello!
>
> Over the last two days I have been struggling with
> understanding why 2.6.x kernel is slower than
> 2.4.21/23 kernels.  I think I have a test case which
> demostrates this issue.

Unfortunately this is common. There are a bunch or tunables like 
swappiness and readahead you can adjust, but if anyone has a handle on 
why it's really so slow they don't seem to have gotten a patch out.

On features 2.6 wins, on performance 2.4 seems faster in many cases.

--
   -bill davidsen (davidsen@xxxxxxx)
"The secret to procrastination is to put things off until the
 last possible moment - but no longer"  -me
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