Profiling question

[Lonewolff]

Hi Guys,

Is there any way to profile the output exe to show how many clock cycles were consumed?

Thanks in advance :)

[jj2007]

There are several well-tested ways, see The Laboratory.
If you are only interested in relative comparisons between algos, measuring milliseconds is usually precise enough. Simple example:

Code Select Expand

include \masm32\MasmBasic\MasmBasic.inc
.data
somestring db "Hello, this is a simple string intended for testing string algos. It has 100 characters without zero", 0

  Init
  NanoTimer()
  LoopCount=20000000
  mov ebx, LoopCount
  .Repeat
invoke crt_strlen, offset somestring
dec ebx
  .Until Sign?
  Print Str$("crt_strlen took %i ms\n", NanoTimer(ms))

  NanoTimer()
  mov ebx, LoopCount
  .Repeat
void len(offset somestring)
dec ebx
  .Until Sign?
  Print Str$("Masm32 len() took %i ms\n", NanoTimer(ms))

  NanoTimer()
  mov ebx, LoopCount
  .Repeat
void Len(offset somestring)
dec ebx
  .Until Sign?
  Inkey Str$("MasmBasic Len() took %i ms\n", NanoTimer(ms))

EndOfCode

Output:

Code Select Expand

crt_strlen took 715 ms
Masm32 len() took 872 ms
MasmBasic Len() took 233 ms

NanoTimer() needs the MasmBasic library, with a 100 nanosecs resolution. You can use GetTickCount instead, but note that its resolution is only around 16 ms.

[Lonewolff]

Nice jj2007. Thanks heaps.

It's great getting back in to MASM, really makes you think hard about every little thing you do. I have made quite a bit of progress learning (and re-learning) this today. :)