Re: [Bug 10575] WARNING: at mm/slub.c:2444

["Peter Teoh" <htmldeveloper@xxxxxxxxx>]

Thanks Pekka, just want to share with the Kernel Newbies communities
what you have wrote:

On 5/3/08, Pekka Enberg <penberg@xxxxxxxxxxxxxx> wrote:
> Peter Teoh wrote:
>
> > a.   any tools commonly used for testing memory - slub/slab etc?
> > something like fsstress, or fsfuzz for filesystem.   this may help me
> > to increased the chances of getting more errors.
> >
>
>  Not really. What I sometimes use is:
>
> http://www.kernel.org/pub/linux/kernel/people/penberg/testing/slab/
>
>  Where file-scan.sh does lots of slab allocations for inode and dentry
> caches and oom-loop.sh causes memory pressure that shrinks them.
>
>  Peter Teoh wrote:
>
> > b.   how do I do performance comparison/benchmarking on the slub vs
> > slab algorithm?
> >
>
>  Anything that is slab intensive like networking, for example. For simple
> performance testing hackbench is okay:
>
>
> http://people.redhat.com/mingo/cfs-scheduler/tools/hackbench.c
>
>  Don't know if Christoph has other tests stashed away somewhere.
>
>                         Pekka
>


-- 
Regards,
Peter Teoh

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