jerome lacoste <[email protected]> wrote:
>
> I am on a Dell Inspiron 8100 laptop with 512 M and 1G disk cache. I
> usually have at least 4 big applications running simultaneously: a
> Java IDE, firefox, firefox and X. All that under the Gnome desktop.
>
> I've sometimes seen periods where my laptop goes kind of nuts. While
> the cpu is still at 0%, the workload goes to 100% (as shown in the
> gnome process monitor) (I haven't checked in other means, e.g. top or
> /proc info as my machine is unusable).
>
> But with my latest upgrade to 2.6.12 from 2.6.10, the hanging happens
> much more often. It lasts for over 30 seconds.
>
> Could this hanging be related to swapping?
> Are there any VM regression lately that would make a kernel less
> appropriate for desktop use?
> How can I investigate that further?
10-20 lines of `vmstat 1' output while it's happening would help.
If lots of system time is being consumed then the next step is to generate
a kernel profile - Documentation/basic_profiling.txt
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