From owner-freebsd-net@FreeBSD.ORG Thu Sep 6 17:34:07 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2401B1065701; Thu, 6 Sep 2012 17:34:07 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-pb0-f54.google.com (mail-pb0-f54.google.com [209.85.160.54]) by mx1.freebsd.org (Postfix) with ESMTP id 757798FC0A; Thu, 6 Sep 2012 17:34:06 +0000 (UTC) Received: by pbbrp2 with SMTP id rp2so2996600pbb.13 for ; Thu, 06 Sep 2012 10:34:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=39PxzDk65KYKpS1STM+Q56EANIrL4fnRm2NkoJNXc1M=; b=JUZ9sXMdV4z7xhx8bgLZ1ZnhPf/MmzQKuB9MclBpZpOhEwxigvDHhgYZ4Hv6M/NYQG fYfzwU3fzIaKyRcFiaZpUdzBvK89BGso3+93Fzkj4H3FQ36BvGaCShSH6yrXR3MaOJGB Z/76VrKgrREA1ihPZw3AxW3NUUo71muNg2ouKH9+n8Xx1uVbh7wnBCD4bcFdKtIxXF4M WVJohmo8dEgY5W/+qh4YkyFou0LUdgKrXa1XQ4TTL7Ao4RpsK7g2spnZcEQ6GOUYwhRb 0pNdf1UIqtpEB1e9FlrwNosCY0q/9l4sEtYwKVi2USIC5FIO9klP2yZx0qHKHo5Q3TyC SKIw== MIME-Version: 1.0 Received: by 10.68.129.131 with SMTP id nw3mr5660345pbb.43.1346952846235; Thu, 06 Sep 2012 10:34:06 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.68.36.106 with HTTP; Thu, 6 Sep 2012 10:34:05 -0700 (PDT) In-Reply-To: <5048D7A7.1030708@rdtc.ru> References: <1865271844.20120829131610@serebryakov.spb.ru> <1807373989.20120829223125@serebryakov.spb.ru> <20120830152726.A33776@sola.nimnet.asn.au> <534292400.20120830131158@serebryakov.spb.ru> <20120831180721.GB3208@michelle.cdnetworks.com> <50404F91.8080302@rdtc.ru> <20120903184049.GB3730@michelle.cdnetworks.com> <50443888.9080400@rdtc.ru> <20120903214333.GC3730@michelle.cdnetworks.com> <5044772C.8090302@rdtc.ru> <5046FE57.3050903@rdtc.ru> <5048D7A7.1030708@rdtc.ru> Date: Thu, 6 Sep 2012 10:34:05 -0700 X-Google-Sender-Auth: SdUW-ZR9C1s2ahLl6sdb4XGYyEY Message-ID: From: Adrian Chadd To: Eugene Grosbein , Alexander Motin Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable Cc: pyunyh@gmail.com, freebsd-net@freebsd.org, Lev Serebryakov , Ian Smith Subject: Re: vr(4) troubles for AMD Geode CS5536 chipset X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Sep 2012 17:34:07 -0000 mav, where is the KTR/schedgraph help page(s) hiding? ADrian On 6 September 2012 10:04, Eugene Grosbein wrote: > 07.09.2012 00:00, Adrian Chadd =D0=C9=DB=C5=D4: >> On 5 September 2012 00:25, Eugene Grosbein wrote: >>> 05.09.2012 14:03, Adrian Chadd =D0=C9=DB=C5=D4: >>>> waaaaaaaaait. >>>> >>>> Did you say that removing preemption from your kernel fixed your >>>> performance issues? >>> >>> Yes. Also, it seems my original vr(4) troubles (RX path problem) >>> have gone away since I run the kernel without preemption. >> >> Ok. Can you please compile up both a preempt and non-preempt 4BSD >> kernel with KTR enabled? > > Yes, I can easily. What should I do next? > >> That way we can capture some schedgraph traces and see what the heck >> is going on. > > I have not used KTR before, please direct me :-)