Return-Path: Delivered-To: apmail-harmony-commits-archive@www.apache.org Received: (qmail 76968 invoked from network); 16 Jan 2008 14:37:08 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 16 Jan 2008 14:37:08 -0000 Received: (qmail 38290 invoked by uid 500); 16 Jan 2008 14:36:58 -0000 Delivered-To: apmail-harmony-commits-archive@harmony.apache.org Received: (qmail 38271 invoked by uid 500); 16 Jan 2008 14:36:58 -0000 Mailing-List: contact commits-help@harmony.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@harmony.apache.org Delivered-To: mailing list commits@harmony.apache.org Received: (qmail 38262 invoked by uid 99); 16 Jan 2008 14:36:58 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Jan 2008 06:36:58 -0800 X-ASF-Spam-Status: No, hits=-100.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO brutus.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Jan 2008 14:36:43 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id F37CF71425E for ; Wed, 16 Jan 2008 06:36:34 -0800 (PST) Message-ID: <2742867.1200494194993.JavaMail.jira@brutus> Date: Wed, 16 Jan 2008 06:36:34 -0800 (PST) From: "Aleksey Shipilev (JIRA)" To: commits@harmony.apache.org Subject: [jira] Updated: (HARMONY-5396) [drlvm][em] excess ValueProfiler locking causes degradation on JITted code with profiling In-Reply-To: <33481235.1200494074776.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/HARMONY-5396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Aleksey Shipilev updated HARMONY-5396: -------------------------------------- Attachment: HARMONY-5396-syncTie.patch HARMONY-5396-syncTie.patch Tying profile locking in addNewValue, exposing hotpath to be lock-free. > [drlvm][em] excess ValueProfiler locking causes degradation on JITted code with profiling > ----------------------------------------------------------------------------------------- > > Key: HARMONY-5396 > URL: https://issues.apache.org/jira/browse/HARMONY-5396 > Project: Harmony > Issue Type: Improvement > Components: DRLVM > Reporter: Aleksey Shipilev > Attachments: HARMONY-5396-syncTie.patch > > > During investigation of serious slowdown in some microbenchmark, excess locking in ValueProfiler was identified. > Please see Harmony-dev thread for the details: http://markmail.org/message/tatsfbyb7eb3q3rr -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.