rails performance memo

<br />#Use external programs<br /><br />def thumbnail(temp, target)<br /> system("/usr/local/bin/convert #{escape(temp)} -resize<br />48x48! #{escape(target}")<br />end<br /><br /><br />#Write inline C/C++ code<br />• RubyInline: Write foreign code within ruby code<br /> http://rubyinline.rubyforge.org/RubyInline/<br /><br />• Rice: Ruby Interface for C++ Extensions<br /> http://rice.rubyforge.org/<br /><br />• Ruby-FFI: a ruby extension for programmatically<br /> loading dynamic libraries<br /> http://github.com/ffi/ffi<br /><br />