Re: [EXTERNAL] Re: Performance issues using GAWK 3.1.6 ->from Win 2008 to Win 2016

[Eli Zaretskii]

> From: Wolfgang Laun <wolfgang.laun@gmail.com>
> Date: Tue, 15 Jun 2021 20:54:52 +0200
> Cc: Eli Zaretskii <eliz@gnu.org>, "mortoneccc@comcast.net" 
> <mortoneccc@comcast.net>, 
>       "arnold@skeeve.com" <arnold@skeeve.com>, "bug-gawk@gnu.org" 
> <bug-gawk@gnu.org>, 
>       "Pereira, Ricardo" <Ricardo_D.Pereira@pseg.com>, "Pirane, Marco" 
> <Marco.Pirane@pseg.com>
> 
> So you have 195,000 times the reading of 5,000 records. One thing that would 
> cause the nine-fold increase
> in time might be a reduction in buffer size. Another thing that might affect 
> performance tremendously (much
> more than buffer size) is file caching. Does the new system cache files as 
> much as the old one?

AFAIK, the I/O buffer size didn't change between Windows 7 and Windows
10, it definitely didn't become smaller.