[OpenJDK 2D-Dev] Speed of drawPolyline on JDK11

Peter Hull peterhull90 at gmail.com
Wed Oct 10 08:22:01 UTC 2018

On Tue, Oct 9, 2018 at 3:52 PM Laurent Bourgès
<bourges.laurent at gmail.com> wrote:
> Peter, what is your hardware & OS info ?
It's an Intel core i7-8750H, 8GB RAM, intel UHD 630 graphics
Windows 10 Pro 1803 build 17134.320

Note that Java 8 is still 'fast' so there must be some difference
between 8 & 11.

I saw that on Java 11, the window size was bigger. I assume this is
due to the HiDPI support added in Java 9 (my display scaling is set to
125%, which is the 'recommended' setting)

Are there any options I can pass to java.exe which would turn off
scaling - that might help to narrow down the problem.

By the way, I tried it on a Mac, it was also 'fast', so it just seems
to be Windows at the moment. I would appreciate it if someone else on
Windows could check it out.


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