Messages in this thread | | | Date | Thu, 19 Jul 2007 02:48:37 +0200 | From | Rene Herman <> | Subject | Re: [PATCH][RFC] 4K stacks default, not a debug thing any more...? |
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On 07/19/2007 02:41 AM, Matt Mackall wrote:
> On Thu, Jul 19, 2007 at 02:15:39AM +0200, Andrea Arcangeli wrote:
>> Using kmalloc(8k) instead of alloc_page() doesn't sound a too big deal >> and that will solve the problem. > > How do you figure? > > If you're saying that soft pages helps our 8k stack allocations, it > doesn't. The memory overhead of soft pages will be higher (5-15%, > mostly due to file tails in pagecache) than the level at which 8k > stacks currently run into trouble (1-2% free?). > > Not helpful.
With tail-packing it is.
Rene.
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