Maybe there is some warm-up JIT time in there? If you create an Empty2 module and load it after Empty, is it also slow?
On Tuesday, July 19, 2016 at 9:07:01 AM UTC-4, Marius Millea wrote: > > I noticed that once I addprocs(), subsequent "using" statements were > extremely slow. I guess in this case its loading the module on each > processor, but if it happens in parallel it shouldn't be *that* much more > wall time, and here I'm talking about two orders of magnitude difference. > > Assuming I've got a file Empty.jl who contents is, > > module Empty > end > > then single threaded: > > tic() > using Empty > toc() > elapsed time: 0.024461076 seconds > > vs. multi-threaded: > > addprocs() #I've got 8 procs > tic() > using Empty > toc() > elapsed time: 2.479418079 seconds > > > Should I submit this as an Issue on Github, or is there something else > going on? I've checked both Julia 0.4.5. and 0.5 (01e3c8a). I'm on Ubuntu > 16.04 64bit. > > >
