Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 98106 invoked from network); 4 Aug 2010 01:04:14 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 4 Aug 2010 01:04:14 -0000 Received: (qmail 29457 invoked by uid 500); 4 Aug 2010 01:04:12 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 29371 invoked by uid 500); 4 Aug 2010 01:04:11 -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 29363 invoked by uid 99); 4 Aug 2010 01:04:11 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 04 Aug 2010 01:04:11 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of dathanvp@gmail.com designates 209.85.212.172 as permitted sender) Received: from [209.85.212.172] (HELO mail-px0-f172.google.com) (209.85.212.172) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 04 Aug 2010 01:04:05 +0000 Received: by pxi20 with SMTP id 20so2083985pxi.31 for ; Tue, 03 Aug 2010 18:03:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=0m2L00R3j/XyHG+L2clF8EWXNcR2uH9Ka1m2DcS1pY4=; b=haYMUDJntphP8i0HPIibL34zJwCl7M08pq4rBxU4tIhfFva/MM1ET0Ta0H7Sb0iekU kT2CxY7r0YzMYpDA3A6cIURO85OttXt06mEbqUUpdB2vopbGcgqRxAV9C1oxCugigQK0 wM0ljrr6KgEVv7SfezNgWS8nFNtyfbIPVaqP8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=ukE10HPVjAwsJdtxuin5cNMqZQonuF8A74Akj/AppGP33m8eVm9ajL4rll7e4S8p0U k5NT89HibUhylgZGgDYtbxt83iZkOQJWNRG6VZCPeMSD1r3kx+tRTU05gynJW2X3Ruu0 PPgfkr/0QPNCPnBebWPXXgBsbAA4WmbATAfQA= MIME-Version: 1.0 Received: by 10.142.230.18 with SMTP id c18mr7187827wfh.188.1280883824454; Tue, 03 Aug 2010 18:03:44 -0700 (PDT) Received: by 10.142.224.1 with HTTP; Tue, 3 Aug 2010 18:03:44 -0700 (PDT) Date: Tue, 3 Aug 2010 18:03:44 -0700 Message-ID: Subject: what is the expected result of changing this in storage.conf From: Dathan Pattishall To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=000e0cd32c5e5aeb28048cf5014c --000e0cd32c5e5aeb28048cf5014c Content-Type: text/plain; charset=ISO-8859-1 Do reads at high concurrency get a boost if I where to raise this value? 8 32 Any benchmarks/reports showing a good sweet spot per CPU core? --000e0cd32c5e5aeb28048cf5014c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Do reads at high concurrency get a boost if I where to raise this value?
=A0 <ConcurrentReads>8</ConcurrentReads>
=A0 <Concur= rentWrites>32</ConcurrentWrites>

Any benchmarks/reports sho= wing a good sweet spot per CPU core?
--000e0cd32c5e5aeb28048cf5014c--