On Fri, Aug 25, 2017 at 8:07 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> I doubt this is a hardware issue, it's more likely that you're comparing
> apples and oranges.  The first theory that springs to mind is that the
> sort keys are strings and you're using C locale on the faster machine but
> some non-C locale on the slower.  strcoll() is pretty darn expensive
> compared to strcmp() :-(

strcoll() is very noticeably slower on macOS, too.

-- 
Peter Geoghegan


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