http://blog.shingara.fr/en/2008-09-03-profile-a-request-in-rails.html
shows how to use script\performance\request — it needs an input file.
Note that in 2.3 you’ll need to use a plugin, apparently. Still seems useful to me, though.
Roger's woze
Roger's meanderings, notes to himself, bug reports, and other things
or you can use ab, from apache
for windows users, download apache 2.2, install, it’s in
c:\program files\apache2\something\bin\ab.exe
“c:\Program Files\Apache Software Foundation\Apache2.2\bin\ab.exe”