From: Alexey Tourbin <at@altlinux.ru>
To: ALT Devel discussion list <devel@altlinux.org>
Subject: [devel] Re: cmdcache hash function
Date: Thu, 15 Sep 2005 18:37:17 +0400
Message-ID: <20050915143717.GD2358@solemn.turbinal.org> (raw)
In-Reply-To: <20050915092651.GT3290@solemn.turbinal.org>
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On Thu, Sep 15, 2005 at 01:26:51PM +0400, Alexey Tourbin wrote:
> Коллеги! Как по-грамотному три числа захешировать?
Что, никто не подкован? Попробовал несколько вариантов, наименьшая
стандартная девиация (т.е. в данном случае это неравномерность коллизий
по bucket'ам) получается с обычным xor'ом.
( ino ^ size ^ mtime ) % prime
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prev parent reply other threads:[~2005-09-15 14:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-12 11:35 [devel] cmdcache Alexey Tourbin
2005-09-12 13:05 ` [devel] cmdcache Alexey Tourbin
2005-09-12 13:34 ` Dmitry V. Levin
2005-09-12 14:01 ` Alexey Tourbin
2005-09-12 14:57 ` [devel] [JT] " Michael Shigorin
2005-09-12 18:35 ` [devel] " Alexey Tourbin
2005-09-13 5:21 ` [devel] " Alexey Tourbin
2005-09-14 15:35 ` Alexey Tourbin
2005-09-14 15:47 ` Michael Shigorin
2005-09-14 16:12 ` Alexey Tourbin
2005-09-14 16:38 ` Michael Shigorin
2005-09-14 17:10 ` Alexey Tourbin
2005-09-15 9:26 ` [devel] Re: cmdcache hash function Alexey Tourbin
2005-09-15 14:37 ` Alexey Tourbin [this message]
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