Re: 2.4.20, .text.lock.swap cpu usage? (ibm x440)

Andrew Morton
2003-01-09T20:09:52Z

Chris Wood wrote:
>
> ..
> The server ran fine for 3 days, so it took a bit to get this info.

Is appreciated, thanks.

> Is there a list of which patches I can apply if I don't want to apply
> the entire 2.4.20aa1? I'm nervous about breaking other things, but may
> give it a try anyway.

http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.20aa1/05_vm_16_active_free_zone_bhs-1
http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.20aa1/10_inode-highmem-2

The former is the most important and, alas, has dependencies on
earlier patches.

hm, OK. I've pulled all Andrea's VM changes and the inode-highmem fix
into a standalone diff. I'll beat on that a bit tonight before unleashing
it.

> Thanks for the help!
>
> Here is a /proc/meminfo when it is running fine:

These numbers are a little odd. You seem to have only lost 200M of
lowmem to buffer_heads. Bill, what's your take on this?

Maybe we're looking at the wrong thing. Are any of your applications
using mlock(), mlockall(), etc?