Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: 2.6.9-rc2-mm3: swsusp horribly slow on AMD64 | Date | Sun, 26 Sep 2004 12:02:34 +0200 |
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On Saturday 25 of September 2004 23:33, Stefan Seyfried wrote: > Rafael J. Wysocki wrote: > > Pavel, > > > > I've just tried to suspend my box and I must admit I've given up after 30 > > minutes (sic!) of waiting when there were only 12% of pages written to disk. > > Apparently, swsusp slows down to an unacceptable level after saying "PM: > > Writing image to disk". > > is this reproducible?
Yes, it is. 100% of the time, AFAICT, though I've tried it for only a couple of times.
> can you get sysrq-t / sysrq-p while it is slow > writing to disk?
Well, I'll try, but sysrq didn't work for me at all on 2.6.9-rc2-mm1, so I'm not sure if I really can.
> I have seen this, too but i cannot nail it down to some specific > pattern, it just "sometimes" is slow. Sysrq-p shows me it's almost > always in "pccardd" (where it shouldn't be during suspend, iiuc). > Unfortunately Pavel does not see this so we have to convince him that > this is really a problem ;-) > So if you can reproduce this, it would be a step in the right direction.
It seems that I can. ;-)
Could it be possible to printk time along with the percentage info (for debugging purposes only, of course)?
Greets, RJW
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