[tarantool-patches] Re: [PATCH v3 1/7] memtx: introduce universal iterator_pool
- From: Konstantin Osipov <kostja@xxxxxxxxxxxxx>
- To: tarantool-patches@xxxxxxxxxxxxx
- Date: Fri, 22 Feb 2019 21:37:25 +0300
* Kirill Shcherbatov <kshcherbatov@xxxxxxxxxxxxx> [19/02/22 19:29]:
Memtx uses separate mempools for iterators of different types.
Due to the fact that there will be more iterators of different
sizes in a series of upcoming changes, let's always allocate the
iterator of the largest size.
If rtree iterator is the one which is largest, let's use a
separate pool for it.
In general mempools are rather cheap. Each mempool takes a slab
for ~100 objects and uses no slabs if there are no objects (e.g.
if rtree index is not used, there is no mempool memory for it).
--
Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov
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