On Sat, Mar 02, 2013 at 12:02:08PM -0800, Walter Bright wrote: > On 3/2/2013 11:42 AM, Russel Winder wrote: > >On Sat, 2013-03-02 at 11:30 -0800, Walter Bright wrote: > >>On 3/2/2013 7:43 AM, Russel Winder wrote: > >>>For writing interpreters, RPython spanks C. > >> > >>What's RPython doing that makes it faster? > > > >Allowing PyPy to have a good JIT compiler. > > I don't understand. Does that JIT generate faster code than a C > compiler would generate?
I don't know, but my wild guess is that a JIT optimizes the *right* hotspots based on real-time performance measurements, whereas a lot of C programmers are obsessed with optimizing what they *think* are the hotspots, but which really aren't. T -- Everybody talks about it, but nobody does anything about it! -- Mark Twain
