thanks Dr. Breuel it seems very helpful, I will give it try first
Regards, Leo On Sep 12, 4:51 pm, "Thomas Breuel" <[EMAIL PROTECTED]> wrote: > One more thing: if you want to see why your code is running slow and where > all the time is going, compile with "-pg" and then run gprof. See the > on-line documentation for gcc and gprof for the details. > > On Visual Studio, look in the help files for how to configure for profiling. > > Cheers, > Thomas. > > On Thu, Sep 11, 2008 at 17:18, Leo <[EMAIL PROTECTED]> wrote: > > > Hi All > > > I have upload one of the main function "hough.cc" > > I found out one of the main reason for slow speed is that when I add a > > item to the link list > > I add it to the end of the list, I already change the way to adding > > new items which is adding new item to the beginning of the link list. > > now the speed is much more faster, however there are many other > > segmentation fault in the code, I was wondering is there another other > > way for C debugging > > that I can use instead of just using fprintf(), it will be better if I > > can found out which line the segmentation fault has occur rather then > > just get an error message of > > "Segmentation fault (core dumped)". > > > I didn't upload all the code, as I think no one will want to read them > > all lol > > > Regards, > > Leo > > > On Sep 10, 5:18 pm, Shag <[EMAIL > > PROTECTED]<https://mail.google.com/mail?view=cm&tf=0&[EMAIL PROTECTED]>> > > wrote: > > > I think it will be easier to suggest something if you pasted some code > > > here . > > > Cheers, > > > Shantanu > > > > On Sep 8, 4:44 pm, Leo <[EMAIL > > > PROTECTED]<https://mail.google.com/mail?view=cm&tf=0&[EMAIL PROTECTED]>> > > wrote: > > > > > Hi All > > > > > I just finish convert my hough transform code from Lua to C, and I try > > > > to call this new function from Lua > > > > however it seems it run even slower than when its implemented in Lua. > > > > I been using some fprintf() function in C for debugging segmentation > > > > fault, could the slow speed cause by this function? Other than that I > > > > have no clue why it perform slower than lua, as I convert the code > > > > from Lua into C and most procedure remain the same other than minor > > > > change in the data structure. > > > > any suggestion will be appreciated. > > > > > Cheers, > > > > Leo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "ocropus" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/ocropus?hl=en -~----------~----~----~----~------~----~------~--~---
