CompileTime performance measurement
Stefan Koch via Digitalmars-d
digitalmars-d at puremagic.com
Sat Sep 3 17:16:15 PDT 2016
On Sunday, 4 September 2016 at 00:08:14 UTC, David Nadlinger
wrote:
>
> Please don't. This makes CTFE indeterministic.
>
Please elaborate on why this would have a negative impact ?
if someone chooses to use a symbol called __ctfeTicksMs they
shoud know what they are doing.
> To write performance tests, just measure compilation of a whole
> program (possibly with -o-). The variance due to the
> startup/shutdown overhead can trivially be controlled by just
> executing the CTFE code in question often enough.
That will only allow you to tell how much overall ctfe-time you
spent.
It will not allow you to pinpoint and optimize the offenders.
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