From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: poffice@blade.nagaokaut.ac.jp Delivered-To: poffice@blade.nagaokaut.ac.jp Received: from kankan.nagaokaut.ac.jp (kankan.nagaokaut.ac.jp [133.44.2.24]) by blade.nagaokaut.ac.jp (Postfix) with ESMTP id 26B8619E0040 for ; Mon, 28 Dec 2015 00:04:57 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id 15CECB5D86F for ; Mon, 28 Dec 2015 00:37:29 +0900 (JST) Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by voscc.nagaokaut.ac.jp (Postfix) with ESMTP id C7AD718CC7E4 for ; Mon, 28 Dec 2015 00:37:29 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id C280C1205A4; Mon, 28 Dec 2015 00:37:27 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o2.heroku.sendgrid.net (o2.heroku.sendgrid.net [67.228.50.55]) by neon.ruby-lang.org (Postfix) with ESMTPS id 04A4E1204EE for ; Mon, 28 Dec 2015 00:37:24 +0900 (JST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=from:to:references:subject:mime-version:content-type:content-transfer-encoding:list-id; s=smtpapi; bh=qvVXLPlGf8+lbJQVh1RZJzCmfFQ=; b=TM4KCnmy6T4W5MG2Ye 4Zxt1aaLxmjeijuoQ0bXSa4pg/8XUpPEbl4Wl6/tAnM34fjrLn8dQJ7qt3bPFDMG e9QvWU4ZFLJF+0lxKP2oLI6JzVEgp9u/qrjBpILmTuk7g/P2BaGTUgFJxVV3SfZN 7wSPTGhN/eaR1wXodn9yMYnAA= Received: by filter0916p1mdw1.sendgrid.net with SMTP id filter0916p1mdw1.8013.568005B11D 2015-12-27 15:37:21.444592537 +0000 UTC Received: from herokuapp.com (ec2-54-158-159-53.compute-1.amazonaws.com [54.158.159.53]) by ismtpd0006p1iad1.sendgrid.net (SG) with ESMTP id BGdYyr7TQH6Yw3dEskPEbw for ; Sun, 27 Dec 2015 15:37:21.397 +0000 (UTC) Date: Sun, 27 Dec 2015 15:37:21 +0000 From: ariel.caplan@mail.yu.edu To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 47122 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11901 X-Redmine-Issue-Author: amcaplan X-Redmine-Sender: amcaplan 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS4p2gIF1De0xZOLK8/Gx9ErSJR6gpqcl1hL+t 8FeR2lMyOOH7sx5iunmRRJEojHUFIcDoT4GUAU47q0rA0T5FP+pHPzjUqU94d35crfQ7M5fnmtYTyR J4qrif209RnW32QshAO67KRfjszEhR9jPJ9ppBWbvsEvqcGsqpfzbH/E7g== X-SendGrid-Contentd-ID: {"test_id":"1451230642"} X-ML-Name: ruby-core X-Mail-Count: 72523 Subject: [ruby-core:72523] [Ruby trunk - Bug #11901] [Open] Performance Issue with OpenStruct 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 #11901 has been reported by Ariel Caplan. ---------------------------------------- Bug #11901: Performance Issue with OpenStruct https://bugs.ruby-lang.org/issues/11901 * Author: Ariel Caplan * Status: Open * Priority: Normal * Assignee: * ruby -v: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin13] * Backport: ---------------------------------------- After recent changes to define OpenStruct getter/setter methods lazily, there is a heavy performance impact for the use case where an attribute is assigned at initialization time (i.e. `Openstruct.new(foo: :bar)`). Once an attribute is stored in the internal hash, the appropriate singleton methods will never be defined, due to the recent changes to OpenStruct's `#respond_to_missing?` - meaning that every time I call `#foo` or `#foo=` it relies on `#method_missing`. Benchmark using benchmark-ips is attached. I'm primarily concerned about the case of configuration objects, which may be populated at initialization time and then accessed many times throughout the life of the program. ---Files-------------------------------- openstruct-regression-benchmark.rb (1.36 KB) -- https://bugs.ruby-lang.org/