Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8EDA67BE4 for ; Thu, 17 Nov 2011 20:42:12 +0000 (UTC) Received: (qmail 22496 invoked by uid 500); 17 Nov 2011 20:42:12 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 22390 invoked by uid 500); 17 Nov 2011 20:42:12 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 22380 invoked by uid 99); 17 Nov 2011 20:42:12 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 17 Nov 2011 20:42:12 +0000 X-ASF-Spam-Status: No, hits=-2001.2 required=5.0 tests=ALL_TRUSTED,RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 17 Nov 2011 20:42:11 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id 20B998B72B for ; Thu, 17 Nov 2011 20:41:51 +0000 (UTC) Date: Thu, 17 Nov 2011 20:41:51 +0000 (UTC) From: "Cristina L. Abad (Updated) (JIRA)" To: common-issues@hadoop.apache.org Message-ID: <2611027.39996.1321562511135.JavaMail.tomcat@hel.zones.apache.org> In-Reply-To: <1159551339.39966.1321562151109.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Updated] (HADOOP-7832) Using mincore to understand the effect of fadvise in the Linux page cache MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HADOOP-7832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Cristina L. Abad updated HADOOP-7832: ------------------------------------- Description: This Jira adds a way to log the percentage of pages of a file that were on the Linux page cache (when the file is being opened) with the purpose of measuring the effect of issuing posix_fadvise (POSIX_FADV_DONTNEED) calls. Priority: Minor (was: Major) > Using mincore to understand the effect of fadvise in the Linux page cache > ------------------------------------------------------------------------- > > Key: HADOOP-7832 > URL: https://issues.apache.org/jira/browse/HADOOP-7832 > Project: Hadoop Common > Issue Type: Sub-task > Components: io, native, performance > Reporter: Cristina L. Abad > Priority: Minor > > This Jira adds a way to log the percentage of pages of a file that were on the Linux page cache (when the file is being opened) with the purpose of measuring the effect of issuing posix_fadvise (POSIX_FADV_DONTNEED) calls. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira