Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 13016 invoked from network); 16 Apr 2011 06:41:56 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 16 Apr 2011 06:41:56 -0000 Received: (qmail 62977 invoked by uid 500); 16 Apr 2011 06:41:53 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 62221 invoked by uid 500); 16 Apr 2011 06:41:52 -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 61338 invoked by uid 500); 16 Apr 2011 06:41:51 -0000 Delivered-To: apmail-incubator-cassandra-user@incubator.apache.org Received: (qmail 61333 invoked by uid 99); 16 Apr 2011 06:41:50 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 Apr 2011 06:41:50 +0000 X-ASF-Spam-Status: No, hits=0.6 required=5.0 tests=FREEMAIL_FROM,MIME_QP_LONG_LINE,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST,SPF_PASS,URI_HEX X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of watanabe.maki@gmail.com designates 209.85.212.175 as permitted sender) Received: from [209.85.212.175] (HELO mail-px0-f175.google.com) (209.85.212.175) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 16 Apr 2011 06:41:39 +0000 Received: by pxi17 with SMTP id 17so2305262pxi.6 for ; Fri, 15 Apr 2011 23:41:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:references:in-reply-to:mime-version :content-transfer-encoding:content-type:message-id:cc:x-mailer:from :subject:date:to; bh=ohkAm3wiSLo0hs/yJ04buqH7JqN3VdvWW0pERx80lx8=; b=eEsiGD5dAR9kCsqWaCjIh81DRgTE7DdNn8KCtrRztMPUyQKZRxtP4IZTW4slPPa78K UE3ZIXLTVVKwRdS6Y1pJWA1RS65mVBMaxq5tMDhXkldqHxUy+/fnec7QzrBzaGzAijVU tfl2FVU8cpg7lH8B9TFiv3mrWtu6uSFiZdOAA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=references:in-reply-to:mime-version:content-transfer-encoding :content-type:message-id:cc:x-mailer:from:subject:date:to; b=R97UxkZfLtfNiqeyj8s13ZbBcB178maW3AbxFefnbO0fmu9hXecn8yY/9hPEZBdJi0 dguS4VIV9N90RLSr2/gtoXNjgVjTtjR9op7M78ZNmueJJXolh1KIv12suJvfZRh0Q+tF LTT1CrL3qqamrhMbO0SoGOz0MZAlrboppLVas= Received: by 10.68.54.70 with SMTP id h6mr3099083pbp.297.1302936078690; Fri, 15 Apr 2011 23:41:18 -0700 (PDT) Received: from [126.222.244.133] (pw126222244133.58.tss.panda-world.ne.jp [126.222.244.133]) by mx.google.com with ESMTPS id l8sm912355pbg.54.2011.04.15.23.41.14 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 15 Apr 2011 23:41:17 -0700 (PDT) References: <1302891906386-6277236.post@n2.nabble.com> <1302934633771-6278397.post@n2.nabble.com> In-Reply-To: <1302934633771-6278397.post@n2.nabble.com> Mime-Version: 1.0 (iPhone Mail 8G4) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Message-Id: Cc: "cassandra-user@incubator.apache.org" X-Mailer: iPhone Mail (8G4) From: Watanabe Maki Subject: Re: Key cache hit rate Date: Sat, 16 Apr 2011 15:41:02 +0900 To: "user@cassandra.apache.org" X-Virus-Checked: Checked by ClamAV on apache.org 3.8E-4 means 3.8 * 10^-4, =3D 0.00038 =3D 0.038%, I think. So your program must be using random enough keys against the key cache size.= maki =46rom iPhone On 2011/04/16, at 15:17, mcasandra wrote: > You mean read it like .00038880248833592535E? I didn't quite follow why? I= f > it is 3.8880248833592535E then does it mean I got only 3% hit or .0003? >=20 > -- > View this message in context: http://cassandra-user-incubator-apache-org.3= 065146.n2.nabble.com/Key-cache-hit-rate-tp6277236p6278397.html > Sent from the cassandra-user@incubator.apache.org mailing list archive at N= abble.com.