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2.6.9 slow

uml-devel Hegedus Gabor 2 participants 2 messages Dec 7, 2004 User-mode Linux (UML)

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Hi!

I tested 2.6.9 with patched with host-skas3-2.6.9-v7.patch. It is very slow, but there is not a big load, nor a big disk io. (I checkd with iostat)

With 2.6.7 it is good.

bye
HyGy

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#1 lore raw
Quoted 7 lines · Hegedus Gabor

Hi!

I tested 2.6.9 with patched with host-skas3-2.6.9-v7.patch. It is very slow, but there is not a big load, nor a big disk io. (I checkd with iostat)

With 2.6.7 it is good.

With SKAS or vanilla? I assume it's vanilla - might you try that with SKAS?

Quoted 2 lines

bye
HyGy

Well, basically SKAS is unlikely to cause that... I'd rather think that in your config 2.6.9 is slower than 2.6.7. Check if you've changed anything relevant on the kernel config.

To make sure that SKAS is not at fault:

- if it becomes slow after running some UMLs, then SKAS is probably at fault. Not otherwise.

- also, I guess that you'll have the performance hit even without SKAS patch applied. Make sure not to change the kernel configuration!

Signature · 14 lines
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade


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