Mailinglist Archive: opensuse-bugs (3178 mails)

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[Bug 719416] writing to usb flashdisk uses too much cpu and makes system unresponsive

https://bugzilla.novell.com/show_bug.cgi?id=719416

https://bugzilla.novell.com/show_bug.cgi?id=719416#c42


--- Comment #42 from Michal Hocko <mhocko@xxxxxxxx> 2012-05-04 15:05:13 CEST ---
(In reply to comment #40)
Created an attachment (id=488809)
--> (http://bugzilla.novell.com/attachment.cgi?id=488809) [details]
vmstat.log.gz

requested by Michal Hocko.

grep pswpout bug-719416_vmstat.log | uniq -c
3 pswpout 4170
719 pswpout 5472
27 pswpout 5540
5 pswpout 5612
1 pswpout 5788
908 pswpout 5903
755 pswpout 6024

There is one big peak at the very beginning (after 3s) when we swap out 1300
pages. Which is quite a lot. Other than that we do not swap out a lot (~100)
but it is always done in burst which might affect interactivity.

So there is something wrong going on with swapping. We are already
investigating a similar issue with SLE11SP1. I will follow up here once we come
up with something.

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