Rails app sooo slow :-(

Discussion in 'Ruby/Rails' started by Granny Smith, May 6, 2007.

  1. Granny Smith

    Granny Smith Active Member

    Rails apps sooo slow :-(

    Hey guys,

    I'm running Rails with Ruby LSAPI for a while and it's sooo slow.
    I'm not sure if it's Litespeed or the LSAPI making it so slow. But I don't have any idea. Maybe you have.

    Watch elmarnass.de to get an impression.
    It takes some seconds before anything happens and then it's fast.
    And the homepage is static! - Just an action without any database use.

    Here are some things I think they might be good to know to solve my problem:
    It's a virtual server with
    128 MB RAM (512 dynamically)
    SUSE 9.3 with Plesk 8.0.1 and Virtuozzo

    Together with the other sites hosted there it are just some visitors a day. Never more than 100 (I think) and it's quite impossible that there are some visitors at the same time. So the hardware should be more than good enough, right?

    My Rails settings in LiteSpeed:
    Ruby Path: /usr/local/bin/ruby
    Rails Environment: Production
    Max Connections: 50
    Environment: Not Set
    Initial Request Timeout (secs): 60
    Retry Timeout (secs): 0
    Connection Keepalive Timeout: 60
    Response Bufferring: No
    Back Log: 50
    Run On Start Up: Yes
    Max Idle Time: 300
    Priority: 3
    Memory Soft Limit (bytes): 150M
    Memory Hard Limit (bytes): 200M
    Process Soft Limit: 100
    Process Hard Limit: 100

    What else could help to make my Rails apps faster?
    (Simple HTML vHosts are really fast, btw.)
    Last edited: May 6, 2007
  2. mistwang

    mistwang LiteSpeed Staff

    try the following configuration:

    Max Connections: 2 (maybe 3 is ok)
    Connection Keepalive Timeout: not set
    Max Idle Time: not set

    Since you set Max Idle time, the ruby process will be stopped if idle for a while, when a new request comes in, it will take a lot effort to initialize the framework again, 128MB is too small for Rails hosts. :)
  3. Granny Smith

    Granny Smith Active Member


    It's much faster now!
    Thank you very, very much!

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