Re: SLUB: Support for statistics to help analyze allocator behavior

From: Christoph Lameter
Date: Tue Feb 05 2008 - 13:06:08 EST


On Tue, 5 Feb 2008, Pekka J Enberg wrote:

> Hi Christoph,
>
> On Mon, 4 Feb 2008, Christoph Lameter wrote:
> > The statistics provided here allow the monitoring of allocator behavior
> > at the cost of some (minimal) loss of performance. Counters are placed in
> > SLUB's per cpu data structure that is already written to by other code.
>
> Looks good but I am wondering if we want to make the statistics per-CPU so
> that we can see the kmalloc/kfree ping-pong of, for example, hackbench

We could do that.... Any idea how to display that kind of information
in a meaningful way. Parameter conventions for slabinfo?

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