bearophile Wrote: > Lua is a dynamically-typed language, so its insights are not directly > applicable to D, but recently the version 2.0beta of its Just-in-time > compiler has become available: > http://www.reddit.com/r/programming/comments/9zrnp/luajit_2_beta_released/ > > Today this JIT is probably the most advanced for dynamic languages. Even V8, > that's a very efficient JIT for JavaScript (and that's 2-5 times faster than > the new JIT of Firefox), partially developed by expert people coming from the > optimization of Smalltalk VM, produces very slow programs compared to this > last Lua JIT: > http://shootout.alioth.debian.org/u32/benchmark.php?test=all&lang=luajit&lang2=v8&box=1 > > Its SpecMark2 performance may even be compard to DMD ones :o) (I have > translated specmark2 to D, if you want it): > http://pastebin.ca/1650985 > My timings of SpecMark2, for comparison: > Timings on WinXp 32 bit, 2.00 seconds min time: > small large > D DMD: 299 207 > D DMD: 401 268 (OOP version) > C GCC: 578 314 > C LLVM-GCC: 609 351 > > But the meat of this post can be found here: > http://article.gmane.org/gmane.comp.lang.lua.general/58908 > > It's the first time I see tagged floating point doubles, as far as I know not > even good CommonLisp implementations are smart enough to use them! > The ideas behing Lua associative arrays can be used to speed up the common > enough case of small AAs in D language. That JIT is created by a single > programmer, and I think he's really intelligent and good. He's a top > programmer, among the best ten I know :-) > > Bye, > bearophile
Wow! Confirms that cleverness/intelligence runs on a logarithmic scale. Can we hire this guy for D? Thanks for posting this bearophile. ciao justin
