From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-2.7 required=3.0 tests=BAYES_00,FORGED_HOTMAIL_RCVD2, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_PASS shortcircuit=no autolearn=no autolearn_force=no version=3.4.0 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id 729511F51C for ; Fri, 18 May 2018 04:10:46 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 9E3A4120B43; Fri, 18 May 2018 13:10:42 +0900 (JST) Received: from o1678948x4.outbound-mail.sendgrid.net (o1678948x4.outbound-mail.sendgrid.net [167.89.48.4]) by neon.ruby-lang.org (Postfix) with ESMTPS id 344DC120B42 for ; Fri, 18 May 2018 13:10:39 +0900 (JST) Received: by filter0016p3iad2.sendgrid.net with SMTP id filter0016p3iad2-14158-5AFE523B-7F 2018-05-18 04:10:36.026231759 +0000 UTC Received: from herokuapp.com (ec2-54-91-212-157.compute-1.amazonaws.com [54.91.212.157]) by ismtpd0008p1iad1.sendgrid.net (SG) with ESMTP id kuFWw9q0ReOFSmSGrft0LQ Fri, 18 May 2018 04:10:35.941 +0000 (UTC) Date: Fri, 18 May 2018 04:10:36 +0000 (UTC) From: dennisb55@hotmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 62522 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 14718 X-Redmine-Issue-Author: mperham X-Redmine-Sender: bluz71 X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS6DCv6jrBDlK+OXXP1zMpoNLY+4I4P8MOv1fB S9dexV3AIMS4GkTHbgmbw1rsQvQDLM2TrXOquMACKGkGWhwhACV7VrkwwdzbKg88+fOnAHuLu76rI2 Xe5K2tAt2ZPyX74ByMOvdQH+4XlRuTVePqwdIZr9ZJZY6INymaDWKJaDJA== X-ML-Name: ruby-core X-Mail-Count: 87160 Subject: [ruby-core:87160] [Ruby trunk Feature#14718] Use jemalloc by default? X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #14718 has been updated by bluz71 (Dennis B). I agree Mike. Close this one and implement [#14759](https://bugs.ruby-lang.org/issues/14759) with the caveat to revisit if/when Guilds land. Good discussion. P.S. I doubt that glibc will ever be *fixed* since the current behaviour suits the customers Red Hat services and Red Hat themselves are the effective maintainers of glibc. ---------------------------------------- Feature #14718: Use jemalloc by default? https://bugs.ruby-lang.org/issues/14718#change-72150 * Author: mperham (Mike Perham) * Status: Open * Priority: Normal * Assignee: * Target version: ---------------------------------------- I know Sam opened #9113 4 years ago to suggest this but I'm revisiting the topic to see if there's any movement here for Ruby 2.6 or 2.7. I supply a major piece of Ruby infrastructure (Sidekiq) and I keep hearing over and over how Ruby is terrible with memory, a huge memory hog with their Rails apps. My users switch to jemalloc and a miracle occurs: their memory usage drops massively. Some data points: https://twitter.com/brandonhilkert/status/987400365627801601 https://twitter.com/d_jones/status/989866391787335680 https://github.com/mperham/sidekiq/issues/3824#issuecomment-383072469 Redis moved to jemalloc many years ago and it solved all of their memory issues too. Their conclusion: the glibc allocator "sucks really really hard". http://oldblog.antirez.com/post/everything-about-redis-24.html This is a real pain point for the entire Rails community and would improve Ruby's reputation immensely if we can solve this problem. -- https://bugs.ruby-lang.org/