Re: AMD SP5100 SATA low perfomance

Hello,

You will laugh, but I've found the issue. These particular drives do
not like the fan vibration and lowering the spin speed ;) Sh*t ...
Sorry for bothering all of you and big thanks for support !

Rus

2012/7/26 Rus V. Brushkoff [off-list ref]:

quoted

Yes, probably. Right about now I'm all out of ideas about what on the
motherboard could be causing this. Maybe we should ask Tyan for help or
whether they've seen a similar issue.

Already asked, but they can't reproduce this as I think that they do
not use Linux for tests ;(

quoted

quoted

Can we see (or debug) what is happenning on bad S8005GM2NR-LE
motherboard during write ?

I don't think so, without special hardware.

Hmm, what exact hardware needed for this ?

quoted

Just a stab in the dark: you've done all those with the systemrescuecd
which has kernel 3.2, correct? Would it be possible to redo those tests,
especially the ones which show the slowdown, with the latest kernel -
3.5 - to see whether the issue still persists?

I've tried the systemrescuecd 3.0.0-beta too, its running 3.5 kernel.

Rus

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Rus

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Rus