Thanks in advance for any assistance.

As the subject line states I'm just now trying to learn profiling. I have a very small program with 1/2 dozen functions and would like to see where the cpu is spending the most time.

I've tried this:
ldc2 --fdmd-trace-functions myprog.d

The result is that no 'trace' files are generated....as far as I can tell. When I run myprog.exe it generates no errors, runs very quickly, and does not do what it previously was doing.

ldc2 --version
LDC - the LLVM D compiler (1.30.0-git-5fd86e5):
based on DMD v2.100.1 and LLVM 14.0.3

On Monday, 3 April 2023 at 23:00:01 UTC, Paul wrote:

What operating system are you using? If on Linux I highly recommend using perf to do profiling.

https://youtu.be/6TDZa5LUBzY My DConf talk may be of use.

On Tuesday, 4 April 2023 at 09:30:43 UTC, max haughton wrote:

I’m on Windows Max

On Tuesday, 4 April 2023 at 17:10:23 UTC, Paul wrote:

The visual studio profiler is really good, worth a look at.

Profilers that instrument the code rathe than using it unmodified should be used quite carefully (more detail in the talk)