I am told that the timing of the C version includes also a Java edition based on the first C tests(without memory mapped files). This version, as was the first C edtion was rather ineficient.
On Sun, Oct 5, 2008 at 10:46 AM, Roger Hui <[EMAIL PROTECTED]> wrote: > Very interesting. > > C J > hours to write 6-8 0.5 > # lines 150 5 > secs to execute 0.35 0.67 > > The comparison are listed in decreasing > importance, and of course hours to write > and # lines are correlated. > > > > ----- Original Message ----- > From: Robert Cyr <[EMAIL PROTECTED]> > Date: Sunday, October 5, 2008 5:53 > Subject: Re: [Jprogramming] performance : J or C ? > To: Programming forum <[email protected]> > > > Roger Hui wrote: > > >I would be interested to see the C routine. J Forum msgs > > >do not seem to permit attachments, so you may have to > > >post the code in a J wiki page. > > > > I may not have write permission in J wiki pages. It may be > > of interest to > > some that: > > > > - J code extracts its IPs in 5 lines. I read un a > > bit on mapped files and > > ti took about 1/2 hour to write the code. It > > executes in 0.67 seconds after > > loading J. > > - C code was writen as an exercise in 6-8 hours > > including a revision. It > > was cleanly written in 150 lines and executes > > in 0.35 secondss. > > > > The author of this C code had studied languages as ML before, > > but my > > demonstration did not persuade him to give J a try. > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
