On Wed, 2 Sep 2020 10:46:48 GMT, Jeanette Winzenburg <faste...@openjdk.org>
wrote:
>> When the startup time is measured by eye, the impression changes depending
>> on the individual difference.
>> The effect of runLater affects your experience.
>>
>> However, I succeeded in further improving performance by eliminating another
>> bottleneck in TreeTableView. Of course, it
>> also includes improvements in startup time.
>> I plan to commit at a later date.
>
>>
>>
>> When the startup time is measured by eye, the impression changes depending
>> on the individual difference.
>
> my eye is a precision instrument :) Seriously, who would do such a thingy?
> Obviously, it must be measured, for zeroth
> approximation doing so crudely by comparing currentMillis before/after
> showing is good enough to "see" the tendency.
>> The effect of runLater affects your experience.
>
> that's why you shouldn't do it when trying to gain insight into timing issues
> ;)
>
>>
>> However, I succeeded in further improving performance by eliminating another
>> bottleneck in TreeTableView. Of course, it
>> also includes improvements in startup time.
>
> cool :)
Column virtualization causes shortness of breath when scrolling a large stroke
horizontally.
This does not happen when stroking on the scrollbar. Looks like a potential
problem with VirtualFlow.
If you are worried about shortness of breath, the following code will help
reduce the problem.
Java
　private static final int OVERLAP_MARGIN = 500;
private static boolean isOverlap(double start, double end, double start2,
double end2){
start = Math.max(start-OVERLAP_MARGIN, start2);
end = Math.min(end+OVERLAP_MARGIN, end2);
return (start<=end2 && end >= start2);
}
-------------
PR: https://git.openjdk.java.net/jfx/pull/125
