I am moving discussion of this on to redmine: http://redmine.ruby-lang.org/issues/3924 tl;dr - I've made the performance linear, still need to do a bit more clean up though. Cheers, Xavier On 1/05/11 10:23 AM, Xavier Shay wrote: > Hello, > I am looking into the performance issues requiring files in 1.9. > Here is a graph I am trying to fix: > https://skitch.com/xaviershay/rh64d/tc-load-time > https://gist.github.com/c8d0d422a9203e1fe492 (after creating 10000 files > in the `f` dir) > > A commit from a few years back [1] adds some behaviour around > loaded_feature_path. When disabled, the require time in my benchmark is > halved [2]. There is no test covering this behaviour, and I can't quite > figure out what it is doing. > > It is probably explained in ruby-dev:31932 but I can't read Japanese: > http://markmail.org/message/d3ef53c63kx2xqkr > > Can anyone either translate the above message for me, or provide a test > case that covers the expected behaviour? > > Cheers, > Xavier > > P.S. This may or many not be related to this issue: > http://redmine.ruby-lang.org/issues/show/3924 > > [1] > https://github.com/ruby/ruby/commit/bb1f1c57823758d2450d184ce7c85beb0d538bf0 > > > [2] add continue; to load.c:161 gives 3s for n=2500 >