I am profiling right now, and most of the time seems to be spent in shift!
kl. 18:29:25 UTC+2 torsdag 31. juli 2014 skrev John Myles White følgende: > > Ivar, did you test this claim? Or are you just reporting your a priori > beliefs? > > -- John > > On Jul 31, 2014, at 9:28 AM, Ivar Nesje <iva...@gmail.com <javascript:>> > wrote: > > Patrick, that is wrong. You don't spend a significant portion of 3 seconds > looking up a global variable 10 times. > > kl. 18:25:25 UTC+2 torsdag 31. juli 2014 skrev Patrick O'Leary følgende: >> >> On Thursday, July 31, 2014 10:38:33 AM UTC-5, Neal Becker wrote: >>> >>> Attached is my 1st attempt at julia, it is a simple FIR filter, which I >>> translated from my c++ version. >>> >>> It is benchmarking about 10x slower than python wrapped c++ version. >>> >>> Any suggestions? >> >> >> Your variable `g` is in global scope, and used in the `timeit()` >> function, so that's a likely candidate (see >> http://julia.readthedocs.org/en/latest/manual/performance-tips/#avoid-global-variables). >> >> Try defining `g` inside `timeit()`. >> > >
