From: Konstantin Osipov <kostja.osipov@gmail.com>
To: Ilya Kosarev <i.kosarev@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org, v.shpilevoy@tarantool.org
Subject: Re: [Tarantool-patches] [PATCH v3 2/2] memtx: allow quota overuse for truncation and deletion
Date: Thu, 6 Feb 2020 19:26:14 +0300 [thread overview]
Message-ID: <20200206162614.GI3311@atlas> (raw)
In-Reply-To: <1581005653.630549653@f491.i.mail.ru>
* Ilya Kosarev <i.kosarev@tarantool.org> [20/02/06 19:15]:
>
> From memtx_tuple_new() we call smalloc(). In case it is calling
> mempool_alloc(), we are passing the pool from memtx->alloc, chosen
> depending on it's size. Later this tuple may be deleted. Then smfree()
> is called, which uses mempool_find() to acquire the pool we want to
> free.
> In case we are using some other specific pool, current mempool_find()
> won't be able to find it. This means we need to process this case
> explicitly and it seems to add noticeable unjustified complexity to the
> code.
Why do you need to use a special pool? Can't you reserve a single
slab in memtx_arena, just like memtx reserves extents now, and
allow use of this slab for any pool *only* when processing truncate?
--
Konstantin Osipov, Moscow, Russia
https://scylladb.com
next prev parent reply other threads:[~2020-02-06 16:26 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 18:13 [Tarantool-patches] [PATCH v3 0/2] Safe " Ilya Kosarev
2020-01-20 18:13 ` [Tarantool-patches] [PATCH v3 1/2] b-tree: return NULL on matras_alloc fail Ilya Kosarev
2020-01-21 10:32 ` Nikita Pettik
2020-01-31 8:18 ` Konstantin Osipov
2020-02-04 17:13 ` Nikita Pettik
2020-02-04 17:25 ` Konstantin Osipov
2020-02-04 18:08 ` Nikita Pettik
2020-02-04 18:25 ` Konstantin Osipov
2020-01-21 20:55 ` Vladislav Shpilevoy
2020-01-20 18:13 ` [Tarantool-patches] [PATCH v3 2/2] memtx: allow quota overuse for truncation and deletion Ilya Kosarev
2020-01-21 11:42 ` Nikita Pettik
2020-01-21 20:59 ` Vladislav Shpilevoy
2020-02-14 19:57 ` Ilya Kosarev
2020-01-31 8:21 ` Konstantin Osipov
2020-02-04 18:56 ` Ilya Kosarev
2020-02-04 20:06 ` Konstantin Osipov
2020-02-05 19:11 ` Ilya Kosarev
2020-02-05 19:17 ` Konstantin Osipov
2020-02-06 10:50 ` Ilya Kosarev
2020-02-06 14:29 ` Konstantin Osipov
2020-02-06 16:14 ` Ilya Kosarev
2020-02-06 16:26 ` Konstantin Osipov [this message]
2020-02-10 8:24 ` Ilya Kosarev
2020-02-10 9:49 ` Konstantin Osipov
2020-02-10 10:43 ` Ilya Kosarev
2020-02-10 10:50 ` Konstantin Osipov
2020-02-14 19:55 ` Ilya Kosarev
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