<div dir="ltr">It can be difficult if you aren't familiar with the JIT implementation code, but yes. It seems like Sam's package is a much more tractable option, though. <div class="gmail_extra"><br><div class="gmail_quote"> On Mon, Feb 25, 2013 at 9:24 AM, Robby Findler <span dir="ltr"><<a href="mailto:robby@eecs.northwestern.edu" target="_blank">robby@eecs.northwestern.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Can't you set a break point somewhere and then use gdb's 'disassemble' command?<span class="HOEnZb"><font color="#888888"><div><br></div></font></span><div><span class="HOEnZb"><font color="#888888">Robby</font></span><div> <div class="h5"><br><br>On Monday, February 25, 2013, James Swaine wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc 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><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:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Message: 6<br> Date: Mon, 25 Feb 2013 17:53:34 +0800<br> From: Haiwei Zhou <<a>highfly22@gmail.com</a>><br> To: Danny Yoo <<a>dyoo@hashcollision.org</a>><br> Cc: users <<a>users@racket-lang.org</a>><br> Subject: Re: [racket] The performance of fannkuch-redux<br> Message-ID:<br> <CABLXuO9nJAUa=Xn7779377NPnoQX6Ze3Tdkf6bvF=<a>sta+bG6wQ@mail.gmail.com</a>><br> Content-Type: text/plain; charset="iso-8859-1"<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>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> -------------- 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> </blockquote></div></div></div> </blockquote></div><br></div></div>