[patch] malloc per-thread cache ready for review

Jeff Law law@redhat.com
Wed Feb 1 16:18:00 GMT 2017


On 02/01/2017 09:14 AM, DJ Delorie wrote:
> Markus Trippelsdorf <markus@trippelsdorf.de> writes:
>> Thanks. It works fine now.
>
> Excellent :-)
>
>> But I see no speedups for a simple compile time test:
>
> GCC is single threaded and has its own internal memory management system
> it layers on top of malloc, and I've not seen it benefit from a
> per-thread cache.
Actually most of GCC's key internal structures are layered on top of 
mmap'd pages.  It doesn't go through malloc for any of the key data 
structures.

jeff



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