<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Feb 25, 2013 at 7:41 AM, James Swaine <span dir="ltr"><<a href="mailto:james.swaine@eecs.northwestern.edu" target="_blank">james.swaine@eecs.northwestern.edu</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div>Hi Haiwei, </div><div><br></div><div>AFAIK there isn't any way to see the actual instructions that the JIT is generating. Why do you think it would be helpful in this case? </div> </div></blockquote><div><br></div><div style>That's not true: Sam has a package for that:</div><div style><br></div><div style><a href="https://pkg.racket-lang.org/info/disassemble">https://pkg.racket-lang.org/info/disassemble</a><br> </div><div style><br></div><div style>Jay</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> <div dir="ltr"> <div><br></div><div>It may be helpful to use raco decompile, however -- that allows you to see what the bytecode version of your program looks like (which is what is actually being fed to the JIT).</div><div> <br></div><div>-James</div><div><br></div><br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"> Message: 6<br> Date: Mon, 25 Feb 2013 17:53:34 +0800<br> From: Haiwei Zhou <<a href="mailto:highfly22@gmail.com" target="_blank">highfly22@gmail.com</a>><br> To: Danny Yoo <<a href="mailto:dyoo@hashcollision.org" target="_blank">dyoo@hashcollision.org</a>><br> Cc: users <<a href="mailto:users@racket-lang.org" target="_blank">users@racket-lang.org</a>><br> Subject: Re: [racket] The performance of fannkuch-redux<br> Message-ID:<br> <CABLXuO9nJAUa=Xn7779377NPnoQX6Ze3Tdkf6bvF=<a href="mailto:sta%2BbG6wQ@mail.gmail.com" target="_blank">sta+bG6wQ@mail.gmail.com</a>><br> Content-Type: text/plain; charset="iso-8859-1"<div><div class="h5"><br> <br> Updated a parallel version to <a href="https://github.com/highfly22/fannkuch-redux" target="_blank">https://github.com/highfly22/fannkuch-redux</a><br> It takes about 1m50s in the four cores PC, while the script in the shoutout<br> takes about 4m30s. It looks like the task division is not perfect.<br> <br> I am just curious on the native implement of JIT. How to dump assemble code<br> after JIT?<br> <br> When I try to define count-flips as a macro, racket complains "to many<br> forms"? What does that mean?<br> <br> Thanks,<br> Haiwei<br> <br> <br> On 24 February 2013 11:03, Danny Yoo <<a href="mailto:dyoo@hashcollision.org" target="_blank">dyoo@hashcollision.org</a>> wrote:<br> <br> > >> > It's amazing fast. If it is only 6 times slower than C version. If<br> > >> > parallelizing the time consuming operations, it would be 2x slower<br> > than<br> > >> > C<br> > >> > version in the four cores CPU.<br> > >><br> > >><br> > >> Do you mean the version you've written, or the one in the Racket<br> > >> benchmark suite?<br> > ><br> > > It's the one in the benchmark suite.<br> ><br> ><br> > What does the code look like if you add the parallelizing? Can you<br> > show us? Thanks!<br> ><br></div></div> -------------- next part --------------<br> An HTML attachment was scrubbed...<br> URL: <<a href="http://lists.racket-lang.org/users/archive/attachments/20130225/8e591afb/attachment-0001.html" target="_blank">http://lists.racket-lang.org/users/archive/attachments/20130225/8e591afb/attachment-0001.html</a>><br> <br> ------------------------------<br></blockquote></div></div></div> <br>____________________<br> Racket Users list:<br> <a href="http://lists.racket-lang.org/users" target="_blank">http://lists.racket-lang.org/users</a><br> <br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Jay McCarthy <<a href="mailto:jay@cs.byu.edu" target="_blank">jay@cs.byu.edu</a>><br>Assistant Professor / Brigham Young University<br><a href="http://faculty.cs.byu.edu/~jay" target="_blank">http://faculty.cs.byu.edu/~jay</a><br> <br>"The glory of God is Intelligence" - D&C 93 </div></div>