Re: [PATCH v2 0/5] Allocate cache entries from memory pool

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On Thu, May 3, 2018 at 9:35 AM, Duy Nguyen <pclouds@xxxxxxxxx> wrote:
> On Mon, Apr 30, 2018 at 5:31 PM, Jameson Miller <jamill@xxxxxxxxxxxxx> wrote:
>> This patch series improves the performance of loading indexes by
>> reducing the number of malloc() calls. Loading the index from disk is
>> partly dominated by the time in malloc(), which is called for each
>> index entry. This patch series reduces the number of times malloc() is
>> called as part of loading the index, and instead allocates a block of
>> memory upfront that is large enough to hold all of the cache entries,
>> and chunks this memory itself. This change builds on [1].
>
> I have only looked at the mem-pool related patches to see if
> mem-pool.c is good enough to replace alloc.c. To me, it's a "yes"
> after we optimize mem_pool_alloc() a bit (not that performance really
> matters in alloc.c case, but that may be because it's already
> blazingly fast that we never noticed about it).

alloc.c was not just about speed, but mostly about dense packing?
855419f764a (Add specialized object allocator, 2006-06-19)

To me it is also a clear yes when it comes to combining these
two memory pools.



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