Alright, I'll bet you a beer next time you're in Raleigh, NC. :) For... in loops seem to use blocks. Anyway, in a quick test they seem to be about 200 - 1000 times slower than an equivalent while loop. A quick test that runs through 1000 iterations 2000 times takes 0.3s with a while loop, and 9.0s with a for loop on my system.
Try a while loop... -Eric On Mon, Mar 10, 2008 at 6:44 PM, Michael Letterle < [EMAIL PROTECTED]> wrote: > Don't know what I'm going to do with a nickel... > > Actually since it's basically a port of a c program I'm only really > using blocks in two places, input and output, plus on other little > place.. I can try but I'd be surprised.. unless for loops in a range > count... > > On Mon, Mar 10, 2008 at 6:37 PM, Eric Nicholson <[EMAIL PROTECTED]> > wrote: > > I bet you a nickel that if you replace a few key block loops (i.e. each, > > times, etc) with a vanilla while loop that you'll see a 10x speedup... > I've > > seen some really huge performance hits on IR using blocks. > > > > -Eric > > > > > > On Mon, Mar 10, 2008 at 6:06 PM, Michael Letterle > > <[EMAIL PROTECTED]> wrote: > > > I'll be posting it up (probably on RubyForge) once I get cleaned up a > > > bit (acknowledgments, rdoc stuff), if you want the raw stuff I can > > > email it straight to you. > > > > > > > > > > > > > > > On Mon, Mar 10, 2008 at 5:33 PM, John Lam (DLR) <[EMAIL PROTECTED]> > > wrote: > > > > Michael Letterle: > > > > > > > > > > > > > > > > > I'd just gotten done implementing DEFLATE in pure ruby, and > figuring > > > > > there'd be a performance hit I was interested to see what it > would > > be. > > > > > On IronRuby (compiled in Release) it takes a full 16 seconds to > > > > > decompress a ~1KB file... in CRuby it's less then a second. An > > ~800KB > > > > > file takes 42 seconds in CRuby, while IronRuby takes a > whopping... > > > > > well I don't know, I killed it after it was running for about a > half > > > > > hour and using upwards of 100MB of memory! > > > > > > > > > > Now this is just a straight port of "puff.c" from the zlib > library, > > so > > > > > it's certainly not optimized for speed in any way, but the > difference > > > > > in runtimes really struck me. > > > > > > > > > > I suppose at the very least we have a good stress test for rbx ;) > > Just > > > > > thought I'd share. > > > > > > > > Cool :) Can you send along the source code for your implementation > so > > we can investigate? > > > > > > > > Thanks > > > > -John > > > > > > > > _______________________________________________ > > > > Ironruby-core mailing list > > > > [email protected] > > > > http://rubyforge.org/mailman/listinfo/ironruby-core > > > > > > > > > > > > > > > > > > > -- > > > Michael Letterle > > > [Polymath Prokrammer] > > > http://blog.prokrams.com > > > _______________________________________________ > > > > > > > > > > > > Ironruby-core mailing list > > > [email protected] > > > http://rubyforge.org/mailman/listinfo/ironruby-core > > > > > > > > > _______________________________________________ > > Ironruby-core mailing list > > [email protected] > > http://rubyforge.org/mailman/listinfo/ironruby-core > > > > > > > > -- > Michael Letterle > [Polymath Prokrammer] > http://blog.prokrams.com > _______________________________________________ > Ironruby-core mailing list > [email protected] > http://rubyforge.org/mailman/listinfo/ironruby-core >
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