Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-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 C635510690 for ; Thu, 13 Mar 2014 21:13:58 +0000 (UTC) Received: (qmail 24699 invoked by uid 500); 13 Mar 2014 21:13:53 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 24652 invoked by uid 500); 13 Mar 2014 21:13:53 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 24565 invoked by uid 99); 13 Mar 2014 21:13:48 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 13 Mar 2014 21:13:48 +0000 Date: Thu, 13 Mar 2014 21:13:48 +0000 (UTC) From: "Brandon Li (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-6080) Improve NFS gateway performance by making rtmax and wtmax configurable 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/HDFS-6080?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Brandon Li updated HDFS-6080: ----------------------------- Fix Version/s: 2.4.0 > Improve NFS gateway performance by making rtmax and wtmax configurable > ---------------------------------------------------------------------- > > Key: HDFS-6080 > URL: https://issues.apache.org/jira/browse/HDFS-6080 > Project: Hadoop HDFS > Issue Type: Improvement > Components: nfs, performance > Reporter: Abin Shahab > Assignee: Abin Shahab > Fix For: 2.4.0 > > Attachments: HDFS-6080.patch, HDFS-6080.patch, HDFS-6080.patch, HDFS-6080.patch > > > Right now rtmax and wtmax are hardcoded in RpcProgramNFS3. These dictate the maximum read and write capacity of the server. Therefore, these affect the read and write performance. > We ran performance tests with 1mb, 100mb, and 1GB files. We noticed significant performance decline with the size increase when compared to fuse. We realized that the issue was with the hardcoded rtmax size(64k). > When we increased the rtmax to 1MB, we got a 10x improvement in performance. > NFS reads: > +---------------+------------+---------------+---------------+---------------+--------------------+----------------------+ > | File | Size | Run 1 | Run 2 | Run 3 | Average | Std. Dev. | > | testFile100Mb | 104857600 | 23.131158137 | 19.24552955 | 19.793332866 | 20.723340184333335 | 1.7172094782219731 | > | testFile1Gb | 1073741824 | 219.108776636 | 201.064032255 | 217.433909843 | 212.53557291133333 | 8.14037175506561 | > | testFile1Mb | 1048576 | 0.330546906 | 0.256391808 | 0.28730168 | 0.2914134646666667 | 0.030412987573361663 | > +---------------+------------+---------------+---------------+---------------+--------------------+----------------------+ > Fuse reads: > +---------------+------------+-------------+--------------+--------------+--------------------+-----------------------+ > | File | Size | Run 1 | Run 2 | Run 3 | Average | Std. Dev. | > | testFile100Mb | 104857600 | 2.394459443 | 2.695265191 | 2.50046517 | 2.5300632679999997 | 0.12457410127142007 | > | testFile1Gb | 1073741824 | 25.03324924 | 24.155102554 | 24.901525525 | 24.696625772999997 | 0.386672412437576 | > | testFile1Mb | 1048576 | 0.271615094 | 0.270835986 | 0.271796438 | 0.2714158393333333 | 0.0004166483951065848 | > +---------------+------------+-------------+--------------+--------------+--------------------+-----------------------+ > (NFS read after rtmax = 1MB) > +---------------+------------+--------------+-------------+--------------+---------------------+-----------------+ > | File | Size | Run 1 | Run 2 | Run 3 | Average | Std. Dev. | > | testFile100Mb | 104857600 | 3.655261869 | 3.438676067 | 3.557464787 | 3.5504675743333336 | 0.0885591069882058 | > | testFile1Gb | 1073741824 | 34.663612417 | 37.32089122 | 37.997718857 | 36.660740831333335 | 1.4389615098060426 | > | testFile1Mb | 1048576 | 0.115602858 | 0.106826253 | 0.125229976 | 0.11588636233333334 | 0.007515962395481867 | > +---------------+------------+--------------+-------------+--------------+---------------------+-----------------+ -- This message was sent by Atlassian JIRA (v6.2#6252)