# Slowdown after installing engines

**URL:** <https://www.ruby-forum.com/t/slowdown-after-installing-engines/120934>\
**Category:** Engines\
**Created:** [November 21, 2007, 10:12pm UTC](https://www.ruby-forum.com/t/slowdown-after-installing-engines/120934 "2007-11-21T22:12:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Luke\_Galea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/a88e4f/32.png) [@Luke\_Galea](https://www.ruby-forum.com/u/Luke_Galea)\
**Post date:** [November 21, 2007, 10:12pm UTC](https://www.ruby-forum.com/t/slowdown-after-installing-engines/120934/1 "2007-11-21T22:12:32Z")

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Hi all!

So, I just added the engines plugin to a large app (aprox 20-30  
plugins already installed) so that I could write the first engine in  
that app.

It’s working great, but there was a pretty major performance hit. it  
appears to only be in development mode, but I’d really like to get rid  
of it if possible.

Is there a way to tell the engines plugin to ignore the plugins that  
aren’t engines?

I have hundreds of lines in every request saying things like:

checking plugin ‘XXX’ for ‘YYY\_controller’

Any thoughts?

Thanks!