Return-Path: X-Original-To: apmail-spark-issues-archive@minotaur.apache.org Delivered-To: apmail-spark-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 491D110578 for ; Fri, 5 Dec 2014 06:35:13 +0000 (UTC) Received: (qmail 51751 invoked by uid 500); 5 Dec 2014 06:35:13 -0000 Delivered-To: apmail-spark-issues-archive@spark.apache.org Received: (qmail 51599 invoked by uid 500); 5 Dec 2014 06:35:13 -0000 Mailing-List: contact issues-help@spark.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@spark.apache.org Received: (qmail 51588 invoked by uid 99); 5 Dec 2014 06:35:13 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 Dec 2014 06:35:13 +0000 Date: Fri, 5 Dec 2014 06:35:12 +0000 (UTC) From: "Zhang, Liye (JIRA)" To: issues@spark.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (SPARK-4740) Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey 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/SPARK-4740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Zhang, Liye updated SPARK-4740: ------------------------------- Attachment: (was: TestRunner sort-by-key - Thread dump for executor 1_files (Nio-48 cores per node).zip) > Netty's network throughput is about 1/2 of NIO's in spark-perf sortByKey > ------------------------------------------------------------------------ > > Key: SPARK-4740 > URL: https://issues.apache.org/jira/browse/SPARK-4740 > Project: Spark > Issue Type: Improvement > Components: Shuffle, Spark Core > Affects Versions: 1.2.0 > Reporter: Zhang, Liye > Attachments: Spark-perf Test Report.pdf, TestRunner sort-by-key - Thread dump for executor 1_files (Netty-48 Cores per node).zip > > > When testing current spark master (1.3.0-snapshot) with spark-perf (sort-by-key, aggregate-by-key, etc), Netty based shuffle transferService takes much longer time than NIO based shuffle transferService. The network throughput of Netty is only about half of that of NIO. > We tested with standalone mode, and the data set we used for test is 20 billion records, and the total size is about 400GB. Spark-perf test is Running on a 4 node cluster with 10G NIC, 48 cpu cores per node and each executor memory is 64GB. The reduce tasks number is set to 1000. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org For additional commands, e-mail: issues-help@spark.apache.org