When you re-include your script, does it again take 11 seconds to get to the error? If so, something is wrong. How much computation is there in your script? You might have a type inference problem, in which case performance will be terrible, and it might simply be taking a long time (much longer than Matlab) to get to the point in your computation where the bug is triggered.
If you haven't already, read at least up through & including the "Tools" section of http://docs.julialang.org/en/release-0.3/manual/performance-tips/ You should definitely profile; that will tell you where the problem is. --Tim On Sunday, November 23, 2014 11:35:03 PM Christian Peel wrote: > >What's your versioninfo? > > I used Version 0.3.0 (x86_64-apple-darwin13.3.0) on a 2013 macbook which > took about 9.6 seconds to include the function, try to run it, and find the > syntax error. On a 2009 iMac with version 0.3.2 of Julia > (x86_64-apple-darwin14.0.0) it took 11.3 seconds. Just to be clear, it > takes something like 3 seconds to load Julia, 26 seconds to load the PyPlot > package (?!?!?) and then an additional 11.3 seconds after that to get the > syntax error. I do not restart Julia every time. > > The functions simulate a narrowband multi-antenna fading communications > channel. To me it feels like a simple and straightforward script, but it > may not be so simple for the optimizer. > > Chris > > On Sunday, November 23, 2014 7:21:36 PM UTC-8, Stefan Karpinski wrote: > > Ah, yes. That would explain this if you're timing how long it takes to > > start Julia from the command prompt. In that case, I can understand the > > complaint about the compile-debug-edit cycle, but you probably should > > consider doing more development at the interactive REPL prompt rather than > > restarting Julia every time. > > > > On Sun, Nov 23, 2014 at 9:56 PM, Patrick O'Leary <[email protected] > > > > <javascript:>> wrote: > >> On Sunday, November 23, 2014 7:55:33 PM UTC-6, Stefan Karpinski wrote: > >>> 11 seconds seems like an awfully long time. In the days of the slow REPL > >>> when Julia compiled itself upon starting up, that's about how long it > >>> took. > >>> What's your versioninfo? > >> > >> Windows doesn't ship with sys.dll, for what it's worth.
