Return-Path: X-Original-To: apmail-hive-dev-archive@www.apache.org Delivered-To: apmail-hive-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 3CA9511C37 for ; Fri, 13 Jun 2014 22:48:02 +0000 (UTC) Received: (qmail 15284 invoked by uid 500); 13 Jun 2014 22:48:01 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 15223 invoked by uid 500); 13 Jun 2014 22:48:01 -0000 Mailing-List: contact dev-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list dev@hive.apache.org Received: (qmail 15213 invoked by uid 500); 13 Jun 2014 22:48:01 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 15210 invoked by uid 99); 13 Jun 2014 22:48:01 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 13 Jun 2014 22:48:01 +0000 Date: Fri, 13 Jun 2014 22:48:01 +0000 (UTC) From: "Prasanth J (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-7219) Improve performance of serialization utils in ORC 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/HIVE-7219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Prasanth J updated HIVE-7219: ----------------------------- Attachment: HIVE-7219.2.patch [~hagleitn] and [~gopalv] Thanks for the review. Incorporated code review changes. > Improve performance of serialization utils in ORC > ------------------------------------------------- > > Key: HIVE-7219 > URL: https://issues.apache.org/jira/browse/HIVE-7219 > Project: Hive > Issue Type: Improvement > Components: File Formats > Affects Versions: 0.14.0 > Reporter: Prasanth J > Assignee: Prasanth J > Attachments: HIVE-7219.1.patch, HIVE-7219.2.patch, orc-read-perf-jmh-benchmark.png > > > ORC uses serialization utils heavily for reading and writing data. The bitpacking and unpacking code in writeInts() and readInts() can be unrolled for better performance. Also double reader/writer performance can be improved by bulk reading/writing from/to byte array. -- This message was sent by Atlassian JIRA (v6.2#6252)