Re: [PATCH] Dynamic Tick version 050406-1

From: Frank Sorenson
Date: Thu Apr 07 2005 - 17:24:32 EST


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Frank Sorenson wrote:
> Tony Lindgren wrote:
>
>>Thanks for trying it out. What kind of hardware do you have? Does it
>>have HPET? It looks like no suitable timer for dyn-tick is found...
>>Maybe the following patch helps?
>>
>>Tony
>
>
> Does 'different crash' qualify as "helping"? :)

Update:
The patch does seem to fix the crash. This "different crash" I
mentioned appears to be related to the netconsole I was using (serial
console produces stairstepping text, netconsole seems to duplicate
lines--go figure). Without netconsole, dynamic tick appears to be
working, so I'm not sure whether this is a netconsole bug or a dynamic
tick bug.

While dynamic tick no longer panics, with dynamic tick, my system slows
to whatever is slower than a crawl. It now takes 6 minutes 50 seconds
to boot all the way up, compared to 1 minute 35 seconds with my 2.6.12
kernel without the dynamic tick patch. I'm not sure where this slowdown
is occurring yet.

Frank
- --
Frank Sorenson - KD7TZK
Systems Manager, Computer Science Department
Brigham Young University
frank@xxxxxxxxxxxx
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