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Re: [EXTERNAL] Re: Performance issues using GAWK 3.1.6 ->from Win 2008 t

From: Eli Zaretskii
Subject: Re: [EXTERNAL] Re: Performance issues using GAWK 3.1.6 ->from Win 2008 to Win 2016
Date: Tue, 15 Jun 2021 14:30:21 +0300

> From: arnold@skeeve.com
> Date: Tue, 15 Jun 2021 01:51:06 -0600
> Cc: bug-gawk@gnu.org, Haritha.Koleti@pseg.com
> Wolfgang Laun <wolfgang.laun@gmail.com> wrote:
> > The durations 10 min and 90 min suggest to me that a lot of i/o is going
> > on. I have experienced performance changes of a similar order of magnitude
> > due to changes in the default i/o buffer size.
> > -W
> This is an interesting idea. Eli, what if you supply a binary built
> with the following patch?

How does this theory explain the difference between the two Windows
versions?  They both use the same value of the "optimal" buffer size.

I'd rather see in the script how much I/O it really does, and take it
from there.  Suppose that it turns out the script invokes other
programs a lot, or does a lot of computations: then the investigation
should go in some other direction, right?

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