Re: [patch] malloc per-thread cache ready for review

[Jeff Law <law at redhat dot com>]

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