From owner-freebsd-hackers@FreeBSD.ORG  Tue Nov  6 17:59:03 2012
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 84B62630
 for <freebsd-hackers@freebsd.org>; Tue,  6 Nov 2012 17:59:03 +0000 (UTC)
 (envelope-from yuri@rawbw.com)
Received: from shell0.rawbw.com (shell0.rawbw.com [198.144.192.45])
 by mx1.freebsd.org (Postfix) with ESMTP id 66C418FC0A
 for <freebsd-hackers@freebsd.org>; Tue,  6 Nov 2012 17:59:03 +0000 (UTC)
Received: from eagle.yuri.org (stunnel@localhost [127.0.0.1])
 (authenticated bits=0)
 by shell0.rawbw.com (8.14.4/8.14.4) with ESMTP id qA6Hwunp083183
 for <freebsd-hackers@freebsd.org>; Tue, 6 Nov 2012 09:58:57 -0800 (PST)
 (envelope-from yuri@rawbw.com)
Message-ID: <50994FE0.2070205@rawbw.com>
Date: Tue, 06 Nov 2012 09:58:56 -0800
From: Yuri <yuri@rawbw.com>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:16.0) Gecko/20121023 Thunderbird/16.0.1
MIME-Version: 1.0
To: freebsd-hackers@freebsd.org
Subject: Re: pgbench performance is lagging compared to Linux and DragonflyBSD?
References: <50980ADD.4010402@rawbw.com>
 <CAGH67wScvnE7gYzVVtfehYbVfM465vrLjP9bX4KXSp8Sq-25mA@mail.gmail.com>
In-Reply-To: <CAGH67wScvnE7gYzVVtfehYbVfM465vrLjP9bX4KXSp8Sq-25mA@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 06 Nov 2012 17:59:03 -0000

On 11/05/2012 12:52, Garrett Cooper wrote:
> FWIW, I think that the last time scheduler benchmarks from anyone at 
> @FreeBSD.org (was kris@ the last one, or has flo@ run benchmarks since 

I myself ran the similar test on i7 920 (4 cores 8 threads) @ 2.67 24GB 
with 9.1-RC3 with all the same params except shmem size was 4GB, not 
6GB: http://i.imgur.com/mfnqr.png
In DragonflyBSD tests FreeBSD peaked at 96k tps. And my machine, with 
roughly 3X lesser power, peaked at 44.5k tps. So in my test BSD 
performed relatively better. And graph shape is more resembling 
linux/DragonflyBSD ones. It looks like in their test FreeBSD behaved in 
somewhat impaired way.

Any ideas what can I try to tune?

Yuri