[plt-scheme] Profiling Issues

From: Robby Findler (robby at cs.uchicago.edu)
Date: Wed Jul 18 10:31:25 EDT 2007

Most of this is that the GUI for profiling could use a little more
work. At the moment, it is tuned to programs that are entirely within
a single file.

If you want to move beyond that, you might try using the lower-level
interface (look in the errortrace collection's docs) for now.

As to #3: yes, that's because the functions have no name. Perhaps they
are lambda expressions not next to binders in your program, or perhaps
they were inserted by macros.

Sorry I can't be more help.


On 7/18/07, Paulo J. Matos <pocm at soton.ac.uk> wrote:
> Hello all,
> I'm trying to profile a program but I'm having some issues:
> 1 - I can't resize the profile window where the profile table is shown;
> 2 - Can't print the table in the window which is quite big;
> 3 - I have a testcase which basically is a macro which expands to
> several function calls and starts a model checking procedure, when I
> do the profile I get a few functions on the table but not all
> functions I defined, and some lines just have <<unknown>>:x.y, can't I
> have the real function name, or these correspond to anonymous function
> calls?
> 4 - The table seems to be organized in lines of two function calls. I
> mean, it shows up two filled lines, then a blank one, more two filled
> line, another blank one... why is this?
> 5 - Some of the functions which take most time are identified as
> loop13214... this doesn't help much and the files where these
> functions are located are opened but they don't get coloured. Any idea
> why? I'm using subversion from July 9th, rev 6874 running on linux.
> Can someone help with these issues?
> Cheers,
> --
> Paulo Jorge Matos - pocm at soton.ac.uk
> http://www.personal.soton.ac.uk/pocm
> PhD Student @ ECS
> University of Southampton, UK
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