Path: utzoo!attcan!uunet!tektronix!tekig5!philj
From: philj@tekig5.PEN.TEK.COM (Phil Jansen)
Newsgroups: comp.sys.mac.programmer
Subject: LightSpeed C profiler problem
Keywords: LightSpeed, C, profiler, problem, need help, recursion
Message-ID: <3452@tekig5.PEN.TEK.COM>
Date: 10 Nov 88 00:26:25 GMT
Organization: Tektronix Inc., Beaverton, Or.
Lines: 43




Hello there.  I've been trying to use the LightSpeed C 3.01 profiler for a
class I'm taking.  Unfortunately, I don't trust the answers it gives me.

Are there people out there who have used it enough to help me out?

	Details:

I have been timing several sorting algorithms, some of which
call other functions, or call themselves recursively.

Usually the profiler will not include sub-function times in the total
function time, but in my case I needed the total time including
sub-function calls.

Both before and after disabling this feature, these functions gave slower
times than non-recursive functions (e.g. Quicksort was 10x slower than
Bubblesort!)

--------------

Also, I tried running some simple in-line function calls, but the profiler
only printed the results of *some* of the functions!  All the functions were
in the same file (compiled with the profiler option on).

Eventually I gave up on the profiler and used TickCount() to get my times.
[It sure wasn't easy to find where the definition for TickCount() was
(No, it is not in time.h).]

Any ideas what I'm doing wrong?


Thank you for your help.

Phil Jansen


-- 
Phil Jansen            If you repeat things often enough, they become true.
philj@tekig5           If you repeat things often enough, they become true.
                       If you repeat things often enough, they become true.