Return-Path: X-Original-To: apmail-logging-log4j-dev-archive@www.apache.org Delivered-To: apmail-logging-log4j-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 F024419706 for ; Mon, 14 Mar 2016 06:58:33 +0000 (UTC) Received: (qmail 4476 invoked by uid 500); 14 Mar 2016 06:58:33 -0000 Delivered-To: apmail-logging-log4j-dev-archive@logging.apache.org Received: (qmail 4387 invoked by uid 500); 14 Mar 2016 06:58:33 -0000 Mailing-List: contact log4j-dev-help@logging.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Help: List-Post: List-Id: "Log4J Developers List" Reply-To: "Log4J Developers List" Delivered-To: mailing list log4j-dev@logging.apache.org Received: (qmail 4366 invoked by uid 99); 14 Mar 2016 06:58:33 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 14 Mar 2016 06:58:33 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 9A6B72C1F60 for ; Mon, 14 Mar 2016 06:58:33 +0000 (UTC) Date: Mon, 14 Mar 2016 06:58:33 +0000 (UTC) From: "Ralph Goers (JIRA)" To: log4j-dev@logging.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (LOG4J2-1116) Web app-friendly thread locals for gc-free logging (was: upgrade to log4j2 causes too frequent minor gc) 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/LOG4J2-1116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15192827#comment-15192827 ] Ralph Goers commented on LOG4J2-1116: ------------------------------------- I created branch LOG4J2-1116 that shows what I have done. > Web app-friendly thread locals for gc-free logging (was: upgrade to log4j2 causes too frequent minor gc) > -------------------------------------------------------------------------------------------------------- > > Key: LOG4J2-1116 > URL: https://issues.apache.org/jira/browse/LOG4J2-1116 > Project: Log4j 2 > Issue Type: Bug > Components: Core > Affects Versions: 2.3 > Environment: jdk1.6 > slf4j 1.7.9 > log4j2.3 > Reporter: Mingjiang Shi > Assignee: Ralph Goers > Priority: Critical > Fix For: 2.6 > > Attachments: Log4jThreadLocal.java, Log4jThreadLocal.java > > > We used slf4j+log1.2 in our spring web application. Due to the log4j1.0 performance issue, we upgrade it to log4j2. When it goes to production, it experienced very frequent minor gc (once per second) even though the eden area is not full. For example, the eden area just occupied 10%, the minor gc also happens. The issue disappears when rolling back to log4j1.2. > Can anyone show some hints on diagnose this issue? Thanks! -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: log4j-dev-unsubscribe@logging.apache.org For additional commands, e-mail: log4j-dev-help@logging.apache.org