From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jesper Juhl <juhl-lkml@dif.dk>
Cc: Andi Kleen <ak@muc.de>, Felipe Alfaro Solana <lkml@mac.com>,
Trond Myklebust <trond.myklebust@fys.uio.no>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Buck Huppmann <buchk@pobox.com>,
Neil Brown <neilb@cse.unsw.edu.au>,
Andreas Gruenbacher <agruen@suse.de>,
"Andries E. Brouwer" <Andries.Brouwer@cwi.nl>,
Andrew Morton <akpm@osdl.org>, Olaf Kirch <okir@suse.de>
Subject: Re: [patch 1/13] Qsort
Date: Mon, 24 Jan 2005 15:45:10 +0000 [thread overview]
Message-ID: <1106512289.6148.31.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.61.0501230600070.2748@dragon.hygekrogen.localhost>
On Sul, 2005-01-23 at 05:05, Jesper Juhl wrote:
> On Sun, 23 Jan 2005, Andi Kleen wrote:
> Even with large data sets that are mostly unsorted shell sorts performance
> is close to qsort, and there's an optimization that gives it O(n^(3/2))
> runtime (IIRC), and another nice property is that it's iterative so it
> doesn't eat up stack space (as oposed to qsort which is recursive and eats
> stack like ****)...
qsort also has bad worst case performance which matters if you are
sorting data provided by a hostile source.
next prev parent reply other threads:[~2005-01-24 16:56 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-22 20:34 [patch 0/13] NFSACL protocol extension for NFSv3 Andreas Gruenbacher
2005-01-22 20:34 ` [patch 1/13] Qsort Andreas Gruenbacher
2005-01-22 21:00 ` vlobanov
2005-01-23 2:03 ` Felipe Alfaro Solana
2005-01-23 2:39 ` Andi Kleen
2005-01-23 3:02 ` Jesper Juhl
2005-01-23 4:46 ` Andi Kleen
2005-01-23 5:05 ` Jesper Juhl
2005-01-23 10:37 ` Rafael J. Wysocki
2005-01-24 4:29 ` Horst von Brand
2005-01-24 15:45 ` Alan Cox [this message]
2005-01-24 17:10 ` H. Peter Anvin
2005-01-25 0:43 ` Horst von Brand
2005-01-25 4:06 ` Eric St-Laurent
2005-01-24 22:04 ` Mike Waychison
2005-01-25 6:51 ` Andi Kleen
2005-01-25 10:12 ` Andreas Gruenbacher
2005-01-25 12:00 ` Andi Kleen
2005-01-25 12:05 ` Olaf Kirch
2005-01-25 16:52 ` Trond Myklebust
2005-01-25 16:53 ` Andreas Gruenbacher
2005-01-25 17:03 ` Trond Myklebust
2005-01-25 17:16 ` Andreas Gruenbacher
2005-01-25 17:37 ` Trond Myklebust
2005-01-25 18:12 ` Andreas Gruenbacher
2005-01-25 19:33 ` Trond Myklebust
2005-01-25 19:49 ` Andreas Gruenbacher
2005-01-23 4:29 ` Matt Mackall
2005-01-24 0:21 ` Nathan Scott
2005-01-24 2:57 ` Matt Mackall
2005-01-24 4:02 ` Horst von Brand
2005-01-24 21:57 ` Matt Mackall
2005-01-23 4:58 ` Felipe Alfaro Solana
2005-01-24 21:20 ` Matt Mackall
2005-01-24 21:50 ` vlobanov
2005-01-23 4:22 ` Matt Mackall
2005-01-23 5:44 ` Willy Tarreau
2005-01-23 21:24 ` Richard Henderson
[not found] ` <1106431568.4153.154.camel@laptopd505.fenrus.org>
2005-01-22 22:10 ` Andreas Gruenbacher
2005-01-22 23:28 ` Matt Mackall
2005-01-23 0:21 ` Matt Mackall
2005-01-23 5:08 ` Andreas Gruenbacher
2005-01-23 5:32 ` Matt Mackall
2005-01-23 12:22 ` Andreas Gruenbacher
2005-01-23 16:49 ` Matt Mackall
2005-01-24 3:48 ` Horst von Brand
2005-01-24 20:15 ` [PATCH] lib/qsort Matt Mackall
2005-01-24 23:09 ` Andrew Morton
2005-01-24 23:30 ` Matt Mackall
2005-01-25 4:11 ` Matt Mackall
2005-01-22 20:34 ` [patch 2/13] Return -ENOSYS for RPC programs that are unavailable Andreas Gruenbacher
2005-02-15 17:04 ` Trond Myklebust
2005-02-16 15:32 ` Andreas Gruenbacher
2005-01-22 20:34 ` [patch 3/13] Add missing -EOPNOTSUPP => NFS3ERR_NOTSUPP mapping in nfsd Andreas Gruenbacher
2005-01-22 20:34 ` [patch 4/13] Allow multiple programs to listen on the same port Andreas Gruenbacher
2005-01-22 20:34 ` [patch 5/13] Allow multiple programs to share the same transport Andreas Gruenbacher
2005-01-22 20:34 ` [patch 6/13] Lazy RPC receive buffer allocation Andreas Gruenbacher
2005-01-22 20:34 ` [patch 7/13] Encode and decode arbitrary XDR arrays Andreas Gruenbacher
2005-02-15 19:17 ` Trond Myklebust
2005-02-16 16:08 ` Andreas Gruenbacher
2005-02-17 14:12 ` Adrian Bunk
2005-01-22 20:34 ` [patch 8/13] Add noacl nfs mount option Andreas Gruenbacher
2005-02-15 17:24 ` Trond Myklebust
2005-02-16 16:10 ` Andreas Gruenbacher
2005-01-22 20:34 ` [patch 9/13] Infrastructure and server side of nfsacl Andreas Gruenbacher
2005-01-22 20:34 ` [patch 10/13] Solaris nfsacl workaround Andreas Gruenbacher
2005-02-15 17:29 ` Trond Myklebust
2005-02-15 20:35 ` Olivier Galibert
2005-02-15 22:43 ` Trond Myklebust
2005-02-15 23:02 ` Olivier Galibert
2005-02-15 23:37 ` Trond Myklebust
2005-02-15 23:43 ` Olivier Galibert
2005-02-16 16:17 ` Andreas Gruenbacher
2005-02-16 17:05 ` Trond Myklebust
2005-02-16 17:39 ` Andreas Gruenbacher
2005-01-22 20:34 ` [patch 11/13] Client side of nfsacl Andreas Gruenbacher
2005-02-15 17:49 ` Trond Myklebust
2005-02-22 13:41 ` Andreas Gruenbacher
2005-02-22 14:13 ` Trond Myklebust
2005-01-22 20:34 ` [patch 12/13] ACL umask handling workaround in nfs client Andreas Gruenbacher
2005-01-25 1:20 ` Andreas Gruenbacher
2005-02-15 18:04 ` Trond Myklebust
2005-02-22 16:47 ` Andreas Gruenbacher
2005-02-22 17:43 ` Trond Myklebust
2005-01-22 20:34 ` [patch 13/13] Cache acls on the nfs client side Andreas Gruenbacher
-- strict thread matches above, loose matches on Subject: below --
2005-01-24 0:28 [patch 1/13] Qsort James Lamanna
2005-01-24 3:44 Charles R Harris
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