Profiling DMD's Compilation Time with dmdprof

[welkam]

On Tuesday, 6 November 2018 at 19:01:58 UTC, H. S. Teoh wrote:
> It looks like it would be really useful one day when I try to 
> tackle the dmd-on-lowmem-system problem again.

Based on my profiling it seems that most memory is allocated in 
void importAll(Scope* sc) found in attrib.d . A person with more 
knowledge of DMD source could create new allocator for scope data 
and when its no longer needed just dealloc all. My intuition says 
that after IR is generated we no longer need scope information.

Here is profile data for simple file.
https://imgur.com/a/ROa6JNd