Messages in this thread | | | Date | Fri, 12 Nov 2010 09:13:40 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [PATCH/RFC] MM slub: add a sysfs entry to show the calculated number of fallback slabs |
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On Fri, 12 Nov 2010, Richard Kennedy wrote:
> On my desktop workloads (kernel compile etc) I'm seeing surprisingly > little slab fragmentation. Do you have any suggestions for test cases > that will fragment the memory?
Do a massive scan through huge amounts of files that triggers inode and dentry reclaim?
> + * Note that this can give the wrong answer if the user has changed the > + * order of this slab via sysfs.
Not good. Maybe have an additional counter in kmem_cache_node instead?
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