From owner-freebsd-performance@FreeBSD.ORG  Sat Apr  8 11:02:15 2006
Return-Path: <owner-freebsd-performance@FreeBSD.ORG>
X-Original-To: freebsd-performance@freebsd.org
Delivered-To: freebsd-performance@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 821F816A401
	for <freebsd-performance@freebsd.org>;
	Sat,  8 Apr 2006 11:02:15 +0000 (UTC) (envelope-from hadara@bsd.ee)
Received: from mx1.starman.ee (smtp-out2.starman.ee [85.253.0.4])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 1F1F943D46
	for <freebsd-performance@freebsd.org>;
	Sat,  8 Apr 2006 11:02:14 +0000 (GMT) (envelope-from hadara@bsd.ee)
Received: from depression.softematic.com (depression.softematic.com
	[62.65.205.81])
	by mx1.starman.ee (Postfix) with ESMTP id 4301F23C1AA;
	Sat,  8 Apr 2006 14:02:10 +0300 (EEST)
From: Sven Petai <hadara@bsd.ee>
To: David Xu <yfxu@corp.netease.com>
Date: Sat, 8 Apr 2006 14:02:00 +0300
User-Agent: KMail/1.9.1
References: <200604041942.18767.hadara@bsd.ee> <44378600.7010004@roq.com>
	<200604081832.46971.yfxu@corp.netease.com>
In-Reply-To: <200604081832.46971.yfxu@corp.netease.com>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
Message-Id: <200604081402.00982.hadara@bsd.ee>
X-Virus-Scanned: by Amavisd-New at mx1.starman.ee
Cc: Michael Vince <mv@roq.com>, freebsd-performance@freebsd.org,
	Steven Hartland <killing@multiplay.co.uk>
Subject: Re: mysql performance on 4 * dualcore opteron
X-BeenThere: freebsd-performance@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Performance/tuning <freebsd-performance.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-performance>,
	<mailto:freebsd-performance-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-performance>
List-Post: <mailto:freebsd-performance@freebsd.org>
List-Help: <mailto:freebsd-performance-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-performance>,
	<mailto:freebsd-performance-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 08 Apr 2006 11:02:15 -0000

On Saturday 08 April 2006 13:32, David Xu wrote:
> On Saturday 08 April 2006 17:44, Michael Vince wrote:
> > I have also tried putting my Perl under libthr for a single thread log
> > analyzer and to my surprise it even could process logs faster.
>
> I don't know why, but I only know I did some micro optimizations in libthr,
> and the library is small and may be fully cached in L1 cache on athlon
> xp/64 CPU, don't take it seriously. ;-)
>
> > libthr is also really useful for actually paying attention to tops 'thr'
> > column since it does show actual true thread number activity, under
> > pthread it shows a couple and under libc_r I could have 1000 threads
> > going but top just shows 1.

Which makes me wonder if anyone has seen any realistic workload type under 
which kse library would outperform libthr ?
My experiences have always been pretty much the same as yours - everything 
seems to be faster with libthr and in the case of mysql, even more stable. 

So shouldn't libthr be made the default one instead of libkse ?