From owner-freebsd-stable@FreeBSD.ORG Mon Nov 19 15:13:03 2007 Return-Path: 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 3A08316A468; Mon, 19 Nov 2007 15:13:03 +0000 (UTC) (envelope-from lol@chistydom.ru) Received: from hermes.hw.ru (hermes.hw.ru [80.68.240.91]) by mx1.freebsd.org (Postfix) with ESMTP id 3133013C43E; Mon, 19 Nov 2007 15:13:01 +0000 (UTC) (envelope-from lol@chistydom.ru) Received: from [80.68.244.40] (account a_popov@rbc.ru [80.68.244.40] verified) by hermes.hw.ru (CommuniGate Pro SMTP 5.0.13) with ESMTPA id 201286763; Mon, 19 Nov 2007 18:12:28 +0300 Message-ID: <4741A7DA.2050706@chistydom.ru> Date: Mon, 19 Nov 2007 18:12:26 +0300 From: Alexey Popov User-Agent: Thunderbird 2.0.0.6 (X11/20070924) MIME-Version: 1.0 To: Ivan Voras References: <4741905E.8050300@chistydom.ru> <47419AB3.5030008@chistydom.ru> In-Reply-To: Content-Type: multipart/mixed; boundary="------------020408070004010709000809" Cc: freebsd-stable@freebsd.org Subject: Re: 2 x quad-core system is slower that 2 x dual core on FreeBSD X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Nov 2007 15:13:03 -0000 This is a multi-part message in MIME format. --------------020408070004010709000809 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi. Ivan Voras wrote: >> CPU states: 9.5% user, 0.0% nice, 82.0% system, 0.5% interrupt, 8.0% >> idle > A wild idea that might not help: try reducing kern.hz in loader.conf to > something like 100 and see if something significant changes. Now it runs with hz=100, number of context switches became ~ 2 times less, but still there's 90% system CPU load (see attach). With best regards, Alexey Popov --------------020408070004010709000809 Content-Type: text/plain; name="vmstat.txt" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="vmstat.txt" ICAgIDEgdXNlcnMgICAgTG9hZCAxNi4zNiAxMi4yNCAgNi4xNCAgICAgICAgICAgICAgICAg IE5vdiAxOSAxODowOAoKTWVtOktCICAgIFJFQUwgICAgICAgICAgICBWSVJUVUFMICAgICAg ICAgICAgICAgICAgICAgICBWTiBQQUdFUiAgIFNXQVAgUEFHRVIKICAgICAgICBUb3QgICBT aGFyZSAgICAgIFRvdCAgICBTaGFyZSAgICBGcmVlICAgICAgICAgICBpbiAgIG91dCAgICAg aW4gICBvdXQKQWN0ICAzNjY5ODggICAxNjk1MiAgIDgzNDI4OCAgICAzNzI0OCAzNTE1NjI0 ICBjb3VudCAgICAgMQpBbGwgIDQyMzIyOCAgIDE4NDcyICA1MDg5NTY4ICAgIDQxMTQ0ICAg ICAgICAgIHBhZ2VzICAgICA0ClByb2M6ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgSW50ZXJydXB0cwogIHIgICBwICAgZCAg IHMgICB3ICAgQ3N3ICBUcnAgIFN5cyAgSW50ICBTb2YgIEZsdCAgICAgIDEgY293ICAgIDM5 MTcgdG90YWwKIDMxICAgICAgICAgIDI0ICAgICAgIDk4ayAgMzVrICA5NWsgMjMxNSAgMTAw ICAyOWsgIDI5OTE5IHpmb2QgICAgICAgIHNpbzAgaXJxNAogICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgb3pmb2QgICAgICAgYXRh MCBpcnExNAo0OC42JVN5cyAgIDEuMCVJbnRyIDQ5LjUlVXNlciAgMC4wJU5pY2UgIDEuMCVJ ZGxlICAgICAgICAlb3pmb2QgICAgIDUgbWZpMCBpcnExOAp8ICAgIHwgICAgfCAgICB8ICAg IHwgICAgfCAgICB8ICAgIHwgICAgfCAgICB8ICAgIHwgICAgICAgZGFlZnIgICAgICAgdWhj aTAgdWhjaQo9PT09PT09PT09PT09PT09PT09PT09PT0rPj4+Pj4+Pj4+Pj4+Pj4+Pj4+Pj4+ Pj4+PiAgIDE3MDkgcHJjZnIgICAyMDAgY3B1MDogdGltZQogICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgIDQgZHRidWYgICAgMjMxNDAgdG90ZnIgIDIzMTEgZW0w IGlycTI1NgpOYW1laSAgICAgTmFtZS1jYWNoZSAgIERpci1jYWNoZSAgICAxMDAwMDAgZGVz dm4gICAgICAgICAgcmVhY3QgICAyMDAgY3B1MjogdGltZQogICBDYWxscyAgICBoaXRzICAg JSAgICBoaXRzICAgJSAgICAgIDE0OTQgbnVtdm4gICAgICAgICAgcGR3YWsgICAyMDAgY3B1 MzogdGltZQogIDE0NzUxNyAgMTQ3NTE0IDEwMCAgICAgICAgICAgICAgICAgICAxNTggZnJl dm4gICAgICAgICAgcGRwZ3MgICAyMDAgY3B1MTogdGltZQogICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgaW50cm4gICAyMDAgY3B1 NDogdGltZQpEaXNrcyBtZmlkMCAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAxMDY4NDAgd2lyZSAgICAyMDAgY3B1NzogdGltZQpLQi90ICAyMC4yMCAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAzNTU3MjAgYWN0ICAgICAyMDEgY3B1 NTogdGltZQp0cHMgICAgICAgNSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgMjEyNDggaW5hY3QgICAyMDAgY3B1NjogdGltZQpNQi9zICAgMC4xMCAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIDEyMjggY2FjaGUKJWJ1c3kgICAg IDEgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAzNTE0NzkyIGZyZWUK ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIDY1 MDU2IGJ1ZgoKCgoKCg== --------------020408070004010709000809--