What is the document about the trace of ldc2

[d007]

On Monday, 10 April 2023 at 14:20:26 UTC, d007 wrote:
> On Monday, 10 April 2023 at 13:43:09 UTC, Richard (Rikki) 
> Andrew Cattermole wrote:
>> [...]
>
> I build with -O0 and -c to check the build time cost. (avoid 
> link and too much Optimize)
>
> I find the write file(s) process take 60% time for most case.  
> the output object file size is not big(like 1.4M), but take 
> 650ms.
>
> is there some time coat action for Write file(s) ?

for a large projects , write file(s) process cost more than 75%.  
and ldc2 get more slower for recent version.