talloc_pooled_object patchset

[Jeremy Allison]

On Tue, Aug 06, 2013 at 07:47:22AM +0200, Volker Lendecke wrote:
> Hi!
> 
> Attached find a patchset that implements
> talloc_pooled_object. The idea is basically that
> tevent_req_create only does one malloc instead of three, and
> for example cp_smb_filename also does just one:
> 
> talloc_pooled_object allocates a basic object as a pool
> similar to talloc(). Additionally, this object itself is a
> pool that will host num_members of user-visible size
> member_size.
> 
> A very simple test fetching a 1G file with aio read size = 1
> with smbclient according to valgrind's callgrind gives a
> reduction of user-space instructions of roughly 7%. In more
> complex tests, I think this has also the potential to reduce
> malloc fragmentation.
> 
> This is not yet ready for pushing, with valgrind I still see
> invalid writes. But I suspect this is due to invalid
> valgrind instrumentation, this patchset does survive
> autobuild.
> 
> Comments?
> 
> Volker
> 
> P.S.: To me, this is really complex stuff, so if you have
> time and want to get your hands dirty, please do a thorough
> review!

I love getting my hands dirty, so I'll try and review
over the next few days.

If you have updates please keep 'em posted though, so
I'm not wasting my time on obsolete versions :-).

Cheers,

	Jeremy