From owner-freebsd-stable@FreeBSD.ORG Thu Aug 29 13:32:48 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id E3A74D25 for ; Thu, 29 Aug 2013 13:32:48 +0000 (UTC) (envelope-from mvharding@gmail.com) Received: from mail-wg0-x229.google.com (mail-wg0-x229.google.com [IPv6:2a00:1450:400c:c00::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 7C4D1279E for ; Thu, 29 Aug 2013 13:32:48 +0000 (UTC) Received: by mail-wg0-f41.google.com with SMTP id b12so217816wgh.2 for ; Thu, 29 Aug 2013 06:32:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=rWEsYpyQchG0uHcsf6FSgnti9wPQTA0g/zndXb0znb0=; b=cRrUitUFveOtW6iCnOU+7Po2bOpi54Bysyr0ZRpT7nQE3boIL2pSnuz17DbBznsECX bIsL09tB+ms7Osmor9NzYY81mGDhnYUJ7PJ+sDDIKemVXYccNVTQQanUQa9FQaM8szKK gnVhfdD3oYMgj43UJvvG5eUIVvZGnFoecHDNNwHIuKll5BpaTu9rinZMnb69734D02dH c53KGvdXllrY0CkZSqb3HAV49yTpiM9WrTJf5uIo9pXRSRiQ10cn/wWnA11XQzZqRcfN rOTEmHqyYWmCZJHizqJQu/lD/SHOQQ5768w2CPicC9SxLDK9wECwUWbvUP2Viw3SOBR6 SV6w== MIME-Version: 1.0 X-Received: by 10.180.72.47 with SMTP id a15mr35015wiv.63.1377783166896; Thu, 29 Aug 2013 06:32:46 -0700 (PDT) Received: by 10.217.67.69 with HTTP; Thu, 29 Aug 2013 06:32:46 -0700 (PDT) Date: Thu, 29 Aug 2013 06:32:46 -0700 Message-ID: Subject: 9.2-RC3 - suspend/resume causes slow system performance From: Mike Harding To: freebsd-stable@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Aug 2013 13:32:49 -0000 I opened a ticket about this: kern/181632 Basically, if I do a 'zzz' and then wake the system up, operations like a buildworld or portmaster take much longer after the resume - systat shows very low CPU/disk utilization. It's 100% repeatable, I don't recall this happening on 9.1 I build 9.2-RC3 from source (as I have for years) - this is a fairly generic SMP system (i5 750 with 4 cpus). Let me know if I can provide any data - this is a fairly significant regression for me as I have taken to bringing the system up as needed vs. leaving it on all of the time.