Nimble Method: 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. Significant performance gains could only be achieved at application level at large development cost.

  • The Upside:

    • 5x potential performance gains;
    • easy way to identify whether GC is a bottleneck;
    • deterministic process to fix memory bottlenecks;
    • set of canned patches to solve the biggest problems;
    • you can help

Nimble Method: Garbage Collection is Why Ruby on Rails is Slow: Patches to Improve Performance 5x; Memory Profiling
arunthampi
Sat, 02 Feb 2008 05:30:00 GMT

Okay, a couple of weeks ago I installed Ruby so that I could run Metasploit. Installing Ruby was a challenge since I needed to install several dependencies so that I could install RubyGems. Fortunately Simon had the answer. When I cranked up the GUI version of Metasploit, the GUI seemed slow and the console messages showed Ruby to be busier than I thought it should be. I hadn’t asked it do anything yet.  Maybe this will help! Then again maybe if I upgrade to the latest version of Metasploit(3.1) will help.

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