Mysql performance

Rails mysql performance

I have an application that reads an xml file, parse it and from there
updates the database. My models has many associations and there are a
lot of creation of new records in the database. The performance is
slow and my analyses shows that mysql is to blame.

In a separate test it took about 11 seconds to create 100 records, i.e
0.1 sec for each record.
Is that normal for the development mode?

I develop on a new mac leopard with rails 2.2.2, ruby 1.8.6 and mysql
Ver 14.12 Distrib 5.0.51a, for apple-darwin9.0.0b5 (i686) using
readline 5.0.

Any suggestions woul be appreciated

On 23 Mar 2009, at 17:44, Hans wrote:

Is that normal for the development mode?
If it’s inside a single action development mode isn’t going to be
slower once it’s reloaded your models’ code and so on.
Have you tried wrapping the insert inside a transaction ? If you don’t
then mysql has to flush to disk after each insert which can slow you
down considerably.


This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs