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 09DD117DD0CF for ; Thu, 25 Dec 2014 03:21:32 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id C3D36B5D861 for ; Thu, 25 Dec 2014 03:16:14 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (localhost.nagaokaut.ac.jp [127.0.0.1]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id F09BF97A834 for ; Thu, 25 Dec 2014 03:16:14 +0900 (JST) X-Virus-Scanned: amavisd-new at nagaokaut.ac.jp Authentication-Results: funfun.nagaokaut.ac.jp (amavisd-new); dkim=fail (1024-bit key) reason="fail (message has been altered)" header.d=sendgrid.me Received: from funfun.nagaokaut.ac.jp ([127.0.0.1]) by funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t-wSXKeJkFaJ for ; Thu, 25 Dec 2014 03:16:14 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id 5B63697A827 for ; Thu, 25 Dec 2014 03:16:14 +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 D0602952439 for ; Thu, 25 Dec 2014 03:16:13 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id EE1E3120452; Thu, 25 Dec 2014 03:16:07 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o10.shared.sendgrid.net (o10.shared.sendgrid.net [173.193.132.135]) by neon.ruby-lang.org (Postfix) with ESMTPS id 81C44120421 for ; Thu, 25 Dec 2014 03:15:55 +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=rLgNOFZ2tWjguW56sS3QjA4Ly0U=; b=HohBbt1k89A2cKhKC7 +h/cnnVm9U5KLUDAhdulgvyu7MUtdwHH47e2fF52zBB9wkv6VsQJDVE02Vqhysxf vW6hsyPNXGWQXLOXTZJ2+Wm15oRucEn6tUD6EZloBE0OZMYfGOMb7lA9PL8xjS6p c2eMawsXPyBpJD9qtVrfYwdmg= Received: by filter0301p1mdw1.sendgrid.net with SMTP id filter0301p1mdw1.4449.549B02D46 2014-12-24 18:15:48.69250002 +0000 UTC Received: from herokuapp.com (ec2-54-145-203-165.compute-1.amazonaws.com [54.145.203.165]) by ismtpd-003 (SG) with ESMTP id 14a7d830e70.568d.8a325 Wed, 24 Dec 2014 18:15:48 +0000 (UTC) Date: Wed, 24 Dec 2014 18:15:48 +0000 From: nagachika00@gmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Redmine-MailingListIntegration-Message-Ids: 41509 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 10015 X-Redmine-Issue-Author: tenderlovemaking X-Redmine-Sender: nagachika X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: OOF Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS6Hp+jzJrjYspZhDSYqTVmPkDINQNoWcyb6dg Od2ILu1A2JU2S4eS1wtTuwwlqq6nZB+P2l7tX1/84buZcIBz7TbelOthxabPcuT6kYQ/MHTbOky829 KgvDzt4p/f6zAxxvgS+uDnr8T1XyMpmXKPfQ X-ML-Name: ruby-core X-Mail-Count: 67104 Subject: [ruby-core:67104] [ruby-trunk - Bug #10015] Performance regression in Dir#[] 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: , Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #10015 has been updated by Tomoyuki Chikanaga. note: r48975 was reverted at r48976. ---------------------------------------- Bug #10015: Performance regression in Dir#[] https://bugs.ruby-lang.org/issues/10015#change-50615 * Author: Aaron Patterson * Status: Closed * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.2.0dev (2014-02-04 trunk 44802) [x86_64-darwin13.0] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- r44802 seems to have introduced a performance regression in Dir#[]. Here is the test program: ~~~ruby require 'benchmark' puts Benchmark.realtime { glob = "minitest/*_plugin.rb{,.rb,.bundle}" $LOAD_PATH.map { |load_path| Dir["#{File.expand_path glob, load_path}"] }.flatten.select { |file| File.file? file.untaint } } ~~~ Here is the test time for me: ~~~ $ ruby -v test.rb ruby 2.2.0dev (2014-02-04 trunk 44801) [x86_64-darwin13.0] 0.000341 $ ruby -v test.rb ruby 2.2.0dev (2014-02-04 trunk 44802) [x86_64-darwin13.0] 0.009333 ~~~ r44801 seems much faster than r44802. -- https://bugs.ruby-lang.org/