[B! tuning] irohirokiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

irohiroki id:irohiroki

tuningã«é–¢ã™ã‚‹irohirokiã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (60)

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countã‚ˆã‚Šã‚‚count_by_sqlã®æ–¹ãŒã„ã„ã‹ã‚‚ - ãŠã‚‚ã—ã‚webã‚µãƒ¼ãƒ“ã‚¹é–‹ç™ºæ—¥è¨˜
å‰æ›¸ã„ãŸæ›¸ãã‹ã‘ã®ãƒ¡ãƒ¢ã‚’ç™ºè¦‹ã—ãŸã®ã§åŠ ç†ã—ã¦è¼‰ã›ã¦ã¿ã¾ã™ã€‚ã¡ãªã¿ã«ã“ã®è©±ã¯Mysql(InnoDB)åˆ©ç”¨æ™‚é™å®šã§ã™ã€‚ ãƒ¢ãƒ‡ãƒ«ã®countãƒ¡ã‚½ãƒƒãƒ‰ã¯ SELECT count(*) AS count_all FROM `blogs` ã®ã‚ˆã†ãªSQLæ–‡ã‚’ç™ºè¡Œã—ã¾ã™ã€‚ã“ã®ã‚ˆã†ãªSQLæ–‡ã§ã¯ã€åŸºæœ¬çš„ã«ä¸»ã‚ãƒ¼ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã«ã‚ˆã‚‹å…¨ç´¢å¼•æ¤œç´¢ãŒè¡Œã‚ã‚Œã¾ã™ã€‚é€šå¸¸ã€ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã ã‘ã‚’èªã¿è¾¼ã‚€å…¨ç´¢å¼•æ¤œç´¢ã®ã»ã†ãŒã€ãƒ†ãƒ¼ãƒ–ãƒ«ã ã‘ã‚’èªã¿è¾¼ã‚€å…¨è¡¨æ¤œç´¢ã‚ˆã‚Šã‚‚I/Oå›žæ•°ãŒå°‘ãªããªã‚‹ãŸã‚é«˜é€Ÿã«ãªã‚Šã¾ã™ãŒã€InnoDBã®ä¸»ã‚ãƒ¼ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã¯ä»–ã®åˆ—å€¤ã¨ç›´çµã—ã¦ã„ã‚‹ä»•æ§˜ã§(ã“ã®å ´åˆã¯)ä½™è¨ˆãªåˆ—å€¤ã‚’èªã¿è¾¼ã‚€ã“ã¨ã«ãªã‚‹ãŸã‚ã€ã‚ã¾ã‚Šé«˜é€Ÿã«ãªã‚Šã¾ã›ã‚“ã€‚ä¸»ã‚ãƒ¼ä»¥å¤–ã®ã‚¤ãƒ³ãƒ‡ãƒƒã‚¯ã‚¹ã‚’åˆ©ç”¨ã—ãŸæ–¹ãŒé«˜é€Ÿã«ãªã‚‹ã‚ˆã†ã§ã™ã€‚ å®Ÿéš›ã«è©¦ã—ã¦ã¿ãŸ rails2.3.2(ãŸã¶ã‚“), mysql5.0.77ã§è©¦ã—ã¾ã—ãŸã€‚ é©å½“ãªrails ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã‚’ä½œæˆã—ã€s
irohiroki 2009/10/03
rails

mysql

tuning
ãƒªãƒ³ã‚¯
GitHub - flyerhzm/bullet: help to kill N+1 queries and unused eager loading
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irohiroki 2009/09/15
rails

db

tuning
ãƒªãƒ³ã‚¯
GitHub - tmm1/perftools.rb: gperftools for ruby code
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irohiroki 2009/06/18
ruby

tuning
ãƒªãƒ³ã‚¯
http://ruby-prof.rubyforge.org/
irohiroki 2009/06/18
ruby

tuning
ãƒªãƒ³ã‚¯
Fixing Threads in Ruby 1.8: A 2-10x performance boost at time to bleed by Joe Damato
Quick notes before things get crazy OK, things might get a little crazy in this blog post so letâ€™s clear a few things up before we get moving. I like the gritty details, and this article in particular has a lot of gritty info. To reduce the length of the article for the casual reader, Iâ€™ve put a portion of the really gritty stuff in the Epilogue below. Definitely check it out if that is your thing
irohiroki 2009/05/25
ruby

tuning
ãƒªãƒ³ã‚¯
Welcome â€” Ruby Enterprise Edition
Highlights Allows your Ruby on Rails applications to use 33% less memory on average, when used in combination with Phusion Passenger. 100% compatible with the official Ruby interpreter, version 1.8.7. Well-tested and extremely stable. Easy to install, either via a native Linux package or via the included installer. Can be installed in parallel with regular Ruby. 100% self-contained, 0% installatio
irohiroki 2009/05/07
ruby

virtual machine

tuning
ãƒªãƒ³ã‚¯
Performance Testing Rails Applications
This guide covers the various ways of performance testing a Ruby on Rails application. By referring to this guide, you will be able to: Understand the various types of benchmarking and profiling metrics Generate performance and benchmarking tests Use a GC-patched Ruby binary to measure memory usage and object allocation Understand the benchmarking information provided by Rails inside the log files
irohiroki 2009/03/27
rails

tuning
ãƒªãƒ³ã‚¯
Dan Manges
Dan Manges Building rwx. Former CTO of Braintree and Root. CB Insights Future of Fintech conference interview Jun 12, 2019 The Modular Monolith: Rails Architecture Jan 23, 2018 em ail â€¢ linkedin â€¢ twitter â€¢ medium â€¢ github
irohiroki 2009/03/11
rails

tuning
ãƒªãƒ³ã‚¯
Scaling ActiveRecord with MySQLPlus - igvita.com
By Ilya Grigorik on October 27, 2008 Late last week Rails core team announced the release of Rails 2.2RC1, which amongst other things slips in 'thread safety' and an implementation of a connection pool for our beloved ActiveRecord. Pratik Naik and Charles Nutter have both covered the implications of these contributions, but the executive summary is as follows: single ruby process (mongrel), plus m
irohiroki 2008/10/29
rails

mysql

tuning
ãƒªãƒ³ã‚¯
4 Simple Steps to Detect & Fix Slow Rails Requests | Scout APM Blog
Dr. Brendan Reilly instituted a simple test to determine whether a patient was suffering from a heart attack. It combined just 4 questions with the results of an ECG. This simple test was 70% better than the barrage of questions previously asked by hospital staff to identify patients that werenâ€™t having a heart attack and was nearly 20% better at identifying patients that were having heart attacks
irohiroki 2008/08/28
rails

tuning
ãƒªãƒ³ã‚¯
NeverBlock
What is it all about? NeverBlock is a Ruby library that allows developers to write non-blocking, concurrent code in a transparent manner. Meaning that you will keep coding in your traditional ways while you get the benefit of non-blocking IO operations. Traditionally, a Ruby application would block whenever it requests an IO operation. This can be solved by running code in multiple threads but t
irohiroki 2008/08/25
ruby

tuning

library
ãƒªãƒ³ã‚¯
TuneUp | Runs
What is TuneUp? FiveRuns TuneUp is a Rails plugin for profiling the performance your applications during development. It runs locally on your machine but can also share profiling runs privately or publ icly through this site. Learn more... In a hurry? Watch our TuneUp screencast. Get Started Now Rails 2.1: sudo gem install fiveruns_tuneup # Add to your config/environment.rb: config.gem 'fiverun
irohiroki 2008/06/02
rails

tuning

plugin
ãƒªãƒ³ã‚¯
9 Essential Rails Tips
Rails is a framework about conventions. It generates a basic structure which you mold into your dream application. Over the course of the years, we have gathered some basic, rails specific, hints and tips you might want to check before going live. They are split into sections to make it easier to scan them, and pick the ones you havenâ€™t indulged (yet) in. Read on, have fun, and comment a lotâ€¦ Act
irohiroki 2008/05/12
rails

tuning

tips
ãƒªãƒ³ã‚¯
Real-Time Web App Performance Monitoring : New Relic
30+ capabilities, 750+ integrations, the power of AI, all together.
irohiroki 2008/05/07
rails

tuning

plugin
ãƒªãƒ³ã‚¯
node.to Â» Example: Maximizing Rails on Minimal Hardware with Mod_Athena
irohiroki 2008/02/13
rails

tuning
ãƒªãƒ³ã‚¯
Garbage Collection is Why Ruby on Rails is Slow: Patches to Improve Performance 5x; Memory Profiling - Acunote Blog
Garbage Collection is Why Ruby on Rails is Slow: Patches to Improve Performance 5x; Memory Profiling The News: Ruby on Rails performance is dominated by garbage collection. We present a set of patches to greatly improve Rails performance and show how to profile memory usage to get further performance gains. What's at Stake: Rails is slow for many uses and did not lend itself well to optimization.
irohiroki 2008/02/13
ruby

tuning
ãƒªãƒ³ã‚¯
Guerrilla's Guide to Optimizing Rails Applications - Acunote Blog
Acunote is online project management and Scrum software. Acunote is fast and easy to use. It shows actual progress, not just wishful thinking. Click here to learn more. The Battle For Performance Rails is slow. Your rails application which does fairy simple database operations will be born slow and will eventually become slower and slower while still not doing anything fancy. That's like getting a
irohiroki 2008/02/05
rails

tuning
ãƒªãƒ³ã‚¯
https://www.railsenvy.com/2007/3/20/ruby-on-rails-caching-tutorial-part-2
irohiroki 2007/12/12
rails

tuning
ãƒªãƒ³ã‚¯
Google Code Archive - Long-term storage for Google Code Project Hosting.
Code Archive Skip to content Google About Google Privacy Terms
irohiroki 2007/12/12
rails

tuning

plugins
ãƒªãƒ³ã‚¯
Database Optimization for Rails Apps
Database Optimization for Rails Apps 20th Nov 2007 by Gwyn Morfey Summary Use STRAIGHT_JOIN if MySQL is doing something silly MySQL Datetimes are not slow MyISAM is much, much faster than InnoDB Consider MySQL partitioning; it's not hard Watch out for background optimisation and query caching Log everything you do, and why The reporting application I'm working on does a date-range select against a
irohiroki 2007/11/21
rails

db

tuning
ãƒªãƒ³ã‚¯
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