Re: Memory allocation jump after running for a while with a largenumber of threads

[Ulrich Drepper <drepper redhat com>]

Ingo Molnar wrote:

>>What's interesting are numerous 992K map'ed memory regions (Note there
>>is a 1M hole between every 992K chunk and the next 32K):
>>
>>[...]
>>bdf00000 (32 KB)       rw-p (00:00 0)
>>bdf08000 (992 KB)      ---p (00:00 0)
> 
> 
> there might be another effect. If this is the thread stack (is it?),

I don't think so.  If all threads are created with 128k stacks (as has
been said) the code is not padding it to 1MB or so.

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