Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 833C64E26 for ; Mon, 4 Jul 2011 01:40:23 +0000 (UTC) Received: (qmail 97168 invoked by uid 500); 4 Jul 2011 01:40:21 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 97043 invoked by uid 500); 4 Jul 2011 01:40:20 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 97035 invoked by uid 99); 4 Jul 2011 01:40:20 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 Jul 2011 01:40:20 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of jbellis@gmail.com designates 74.125.82.172 as permitted sender) Received: from [74.125.82.172] (HELO mail-wy0-f172.google.com) (74.125.82.172) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 Jul 2011 01:40:14 +0000 Received: by wyj26 with SMTP id 26so3640691wyj.31 for ; Sun, 03 Jul 2011 18:39:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=EvhMrZhKCGzEJ9Enc3G2Nt4MiE35WypqpwIl0W9K5l8=; b=p2wIg4RVzJCY5u+CUt5UW/zLZedVnDE1/vbVPfEA7tBXtXvexDAvwrOT4cizz+RrJU 85w3qeGuAeXK2MY5uqZoqHz2EXpjvwOrMUfcElY2Gq7gjvTR3EO5y93yUn5T+HJ262Vc JebUUVSenb06K/QUazpvQN3WLMY46rn6zA/M8= Received: by 10.216.28.200 with SMTP id g50mr4651245wea.92.1309743594084; Sun, 03 Jul 2011 18:39:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.216.38.85 with HTTP; Sun, 3 Jul 2011 18:39:34 -0700 (PDT) In-Reply-To: <2757FB80-23A0-40D2-BCEC-EBF14A620EDC@gmail.com> References: <0F6C7D61-902E-4783-8BCC-88570F30550A@gmail.com> <2757FB80-23A0-40D2-BCEC-EBF14A620EDC@gmail.com> From: Jonathan Ellis Date: Sun, 3 Jul 2011 20:39:34 -0500 Message-ID: Subject: Re: secondary index performance To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org On Sun, Jul 3, 2011 at 5:12 PM, Jeremy Hanna wrote: > Trying some other stuff with tools mentioned here: http://spyced.blogspot.com/2010/01/linux-performance-basics.html but not seeing anything particularly disk bound, though await (from iostat -x) seems high on one of the devices. Are you then seeing that it's CPU bound? (Assuming that you are pushing enough requests to saturate it.) -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com