From: William Lee Irwin III <wli@holomorphy.com>
To: Thomas Schlichter <schlicht@uni-mannheim.de>
Cc: Andrew Morton <akpm@digeo.com>, linux-kernel@vger.kernel.org
Subject: Re: [RFC] first try for swap prefetch
Date: Fri, 11 Apr 2003 05:13:08 -0700 [thread overview]
Message-ID: <20030411121308.GC30376@holomorphy.com> (raw)
In-Reply-To: <200304111352.05774.schlicht@uni-mannheim.de>
On Fri, Apr 11, 2003 at 01:51:55PM +0200, Thomas Schlichter wrote:
> Sorry, but I think I can not. The list_del() needs the value returned by
> radix_tree_lookup(), so I can not kick it... By the way, the only reason for
> the radix tree is to make this list_del() not O(n) for searching the list...
> Do you know how expensive the radix_tree_lookup() is? O(1) or O(log(n))?? For
> my shame I do not really know that data structure... :-(
It's O(lg(keyspace)). This is regarded as constant by many.
-- wli
next prev parent reply other threads:[~2003-04-11 12:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-10 17:47 Thomas Schlichter
2003-04-10 23:18 ` Andrew Morton
2003-04-11 11:51 ` Thomas Schlichter
2003-04-11 12:13 ` William Lee Irwin III [this message]
2003-04-11 12:21 ` John Bradford
2003-04-11 12:22 ` Zwane Mwaikambo
2003-04-11 13:29 ` John Bradford
2003-04-11 21:39 ` Andrew Morton
2003-04-12 5:05 ` Thomas Schlichter
2003-04-12 5:37 ` Andrew Morton
2003-04-17 16:02 ` [RFC] second try for swap prefetch (does Oops!) Thomas Schlichter
2003-04-11 16:57 [RFC] first try for swap prefetch Chuck Ebbert
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