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RailsExpress.blog

How to make your rails app run reeeeeally fast!


Ruby/Rails Consultants wantedJanuary 23

I need 2 additional consultants for the Rails CRM project I’m managing for Autoscout24.

It’s a massive Rails application with 198 models and 60 controllers. A large part of the code base consists of business logic.

Requirements:

  • brightness
  • ability to get things done
  • willingness to dive into an existing code base, fix stuff and extend existing functionality
  • good social skills
  • ability to speak English (German is a plus)

If you’re interested, send me your credentials.

The contract duration would be 6 months initially.

This is an on site project in Munich, telecommuting is unfortunately not possible.

Update: the positions have been filled.

Writing Efficient Ruby Code - Short CutDecember 28 2007

This has been a busy year for me, but I have finally managed to complete the first chapter of my book “Performance Rails” and Addison Wesley has published it as a digital short cut .

It’s a collection of performance patterns (and anti patterns) which I have successfully applied to speed up the Rails framework. I hope you will find it useful.

Update: here some comments by readers of the short cut:

Rails Edge PerformanceSeptember 18 2007

Listening to David's RailsConf Europe 2007 keynote, I've learned that he's going to a release a beta version soonish. He's asked me to do some benchmarking, comparing the performance of edge Rails to the latest stable branches. Here's a chart:

stable_11_stable_12_edge_small.png

stable11 is the current svn version of branch 1-1-stable, stable12 is current version of 1-2-stable branch and edge is the current version of Rails trunk. Numbers are requests per second (measured on my MacBook during David's talk).

If you're a numbers type, these are the numbers:

page c1 totalc2 total c1 r/sc2 r/s c1 ms/rc2 ms/r c1/c2 empty 0.947091.05049 1055.9951.9 0.951.05 0.90 welcome 1.228781.34536 813.8743.3 1.231.35 0.91 recipes 1.372141.50364 728.8665.1 1.371.50 0.91 my_recipes 1.369581.49912 730.2667.1 1.371.50 0.91 show 3.469444.27918 288.2233.7 3.474.28 0.81 cat 3.726754.58788 268.3218.0 3.734.59 0.81 cat_page5 3.856244.68700 259.3213.4 3.864.69 0.82 letter 3.699704.54140 270.3220.2 3.704.54 0.81 all requests 19.6697123.49406 406
Rails Consultant wantedJune 6 2007

I’m looking for an experienced Rails consultant to complement the team working for Autoscout24 on the International Sales Synergy Project which I am managing.

Requirements:

  • brightness
  • ability to get things done
  • willingness to dive into an existing code base, fix stuff and extend existing functionality
  • good social skills
  • ability to speak English (German is a plus)

If you’re interested, send me your credentials.

Update: the open position has been filled. Thanks for sending in your emails.

New Railsbench Release (0.9.2)April 1 2007

A new version of railsbench has been released. Benchmarking POST requests is now supported, benchmark specific session data can be specified in the benchmark config file and ERB can be used as well.

  • added POST support: search: uri: /search method: post post_data: category=dessert
    • method defaults to get
    • post_data will be url encoded by railsbench
  • allow specification of session_data in benchmarks.yml: benchmark_name: uri: / session_data: user_id: 1 post_data: category=dessert
  • load benchmarks.yml using ERB. Example: retrieve login ids using Rails) admin_interface: uri: /admin session_data: user_id: <%= User.find_by_name('admin').id %>
  • use benchmark names instead of urls in raw data files, old files can be converted using script convert_raw_data_files. change was required by post support
  • copy environments/production.rb to environments/benchmarking.rb, instead of providing a fixed one
  • don’t create a broken benchmarks.yml file when running railsbench install
  • perf_plot and perf_plot_gc accept -geometry parameter, for exact dimensioning of the produced .png file
  • use -font_size=12 for setting font size when generating graphs
  • use ‘perf_plot -colors=color1,color2,...’ to get a different color set
  • use ‘perf_plot -out=nam