Re: pgsql: MSVC: Build ~35% faster by calling dumpbin just once perdirecto

On Sun, May 05, 2019 at 06:13:47PM -0400, Tom Lane wrote:
> Noah Misch <noah@leadboat.com> writes:
> > MSVC: Build ~35% faster by calling dumpbin just once per directory.
> 
> I happened to notice that dory seems to have gotten no benefit at
> all from this patch, although the speed change is very apparent
> on some other MSVC critters such as whelk and woodlouse.
> Puzzling.

The author was using parallel builds (MSBFLAGS=/m), as was I.  dory doesn't
seem to be doing so.  I would have guessed more than zero improvement even
without parallelism.  Puzzling, indeed.