DMD Frontend working in WebAssembly (page 2)

October 16, 2021

Re: DMD Frontend working in WebAssembly

Posted by max haughton
in reply to Paul Backus

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max haughton

Posted in reply to Paul Backus

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On Friday, 15 October 2021 at 21:58:29 UTC, Paul Backus wrote:

On Friday, 15 October 2021 at 15:19:26 UTC, Imperatorn wrote:

Btw, why is dmd a memory hog?

Because it doesn't free memory. It just allocates, and relies on the OS to clean up at process exit.

See https://www.digitalmars.com/articles/b87.html

lowmem actually isn't much better sometimes. There are issues with references being held and confusing the GC, also.

You can see this, if you use either massif or enable the GC. The peak heap collapses but at not much expense in runtime. Sometimes however, the GC makes no difference - I noticed this when benchmarking AliasAssign, you'd expect the old assigned-to memory to be freed but this doesn't seem to be the case empirically.

On Saturday, 16 October 2021 at 01:08:11 UTC, max haughton wrote: > issues with references being held and confusing the GC, also. A reminder (if one were needed) that one can still have memory leaks with GC :)

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