From: "Jörn Engel" <joern@logfs.org>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [RFC] B+Tree library
Date: Fri, 31 Oct 2008 14:15:24 +0100 [thread overview]
Message-ID: <20081031131524.GF18182@logfs.org> (raw)
In-Reply-To: <1225458436.5546.2.camel@johannes.berg>
On Fri, 31 October 2008 14:07:16 +0100, Johannes Berg wrote:
>
> OTOH, there is no need to put the SSID in if I put a small list into
> each node, effectively using the tree instead of the hash table and then
> disambiguating the unlikely case of multiple SSID in a list.
Exactly. In sunny wheather btrees can be a good implementation for hash
tables. They can grow and shrink as needed, without taking the latency
hit for rehashing every single item. Until lock contention or pingpong
shows otherwise. :(
Most likely the answer to bad whether is RCU. Patches are welcome.
Jörn
--
They laughed at Galileo. They laughed at Copernicus. They laughed at
Columbus. But remember, they also laughed at Bozo the Clown.
-- unknown
next prev parent reply other threads:[~2008-10-31 13:15 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-26 12:46 [RFC] B+Tree library Jörn Engel
2008-10-28 1:25 ` Dave Chinner
2008-10-30 17:43 ` Pavel Machek
2008-10-30 17:58 ` Jörn Engel
2008-10-30 19:14 ` Pavel Machek
2008-10-30 20:20 ` Jörn Engel
2008-10-31 6:38 ` Christian Borntraeger
2008-10-31 7:35 ` Jörn Engel
2008-10-31 9:16 ` Geert Uytterhoeven
2008-10-31 9:20 ` Jörn Engel
2008-10-31 10:35 ` Johannes Berg
2008-10-31 11:26 ` Jörn Engel
2008-10-31 11:32 ` Johannes Berg
2008-10-31 12:54 ` Jörn Engel
2008-10-31 13:07 ` Johannes Berg
2008-10-31 13:15 ` Jörn Engel [this message]
2008-11-01 15:59 ` [RFC] B+Tree library V2 Jörn Engel
2008-11-05 19:57 ` Johannes Berg
2008-11-05 20:06 ` Jörn Engel
2008-11-05 20:12 ` Johannes Berg
2008-11-05 20:21 ` Jörn Engel
2008-11-05 20:25 ` Johannes Berg
2008-11-07 7:52 ` Jörn Engel
2009-01-08 0:57 ` Johannes Berg
2009-01-08 16:24 ` Jörn Engel
2009-01-08 16:34 ` Johannes Berg
2009-01-08 19:40 ` Jörn Engel
2009-01-08 16:50 ` Johannes Berg
2009-01-08 19:46 ` Jörn Engel
2009-01-08 17:10 ` Johannes Berg
2009-01-08 20:02 ` Jörn Engel
2009-01-08 20:18 ` Johannes Berg
2009-01-08 21:09 ` Jörn Engel
2008-10-31 13:16 ` [RFC] B+Tree library Johannes Berg
2008-10-31 13:29 ` Jörn Engel
2008-10-31 13:45 ` Bert Wesarg
2008-10-31 15:18 ` Tim Gardner
2008-10-31 15:35 ` Jörn Engel
2008-10-31 20:17 ` Sean Young
2008-10-31 23:36 ` Jörn Engel
2008-11-01 10:17 ` Sean Young
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