From owner-freebsd-stable@FreeBSD.ORG  Sun May 18 14:28:31 2008
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id DB8431065673
	for <freebsd-stable@freebsd.org>; Sun, 18 May 2008 14:28:31 +0000 (UTC)
	(envelope-from daniel@skytek.it)
Received: from mail.skytek.it (mail.skytek.it [217.194.176.18])
	by mx1.freebsd.org (Postfix) with ESMTP id 4C60C8FC13
	for <freebsd-stable@freebsd.org>; Sun, 18 May 2008 14:28:31 +0000 (UTC)
	(envelope-from daniel@skytek.it)
Received: from [192.168.30.100] ([192.168.30.100])
	by mail.skytek.it (Skytek Mail Server v.11.47-p9) with ASMTP id
	YTH37537
	for <freebsd-stable@freebsd.org>; Sun, 18 May 2008 16:15:37 +0200
Message-ID: <48303A1B.9000103@skytek.it>
Date: Sun, 18 May 2008 16:15:55 +0200
From: Daniel Ponticello <daniel@skytek.it>
User-Agent: Thunderbird 2.0.0.14 (Windows/20080421)
MIME-Version: 1.0
To: freebsd-stable@freebsd.org
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Disk access/MPT under ESX3.5
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>, 
	<mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
	<mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 18 May 2008 14:28:31 -0000

Hello,
i'm running some tests with FreeBSD6.3 and FreeBSD7-Stable, using both 
AMD64 and I386 arch
with both schedulers (ULE and 4BSD) on VmWare ESX3.5 server.
Everything runs almost fine, except for disk access. Performance is 
quite OK (around 60mb/sec),
but when accessing disks, System (kernel) CPU load goes up to 70%. This 
doesn't look
normal. The same behavior is present on all test configurations.

monitor# dmesg | grep mpt
mpt0: <LSILogic 1030 Ultra4 Adapter> port 0x1080-0x10ff mem 
0xf4810000-0xf4810fff irq 17 at device 16.0 on pci0
mpt0: [ITHREAD]
mpt0: MPI Version=1.2.0.0

da0 at mpt0 bus 0 target 0 lun 0
da0: <VMware Virtual disk 1.0> Fixed Direct Access SCSI-2 device
da0: 3.300MB/s transfers
da0: Command Queueing Enabled
da0: 34816MB (71303168 512 byte sectors: 255H 63S/T 4438C)


Any suggestions?

Thanks,

Daniel

-- 

WBR,
Cordiali Saluti,
 
Daniel Ponticello, VP of Engineering

Network Coordination Centre of Skytek

---
- For further information about our services: 
- Please visit our website at http://www.Skytek.it
---