[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Big performance hit with mouse cursor movement in commit 4d3f02655d (#292)

caoliver notifications at github.com
Fri Oct 5 14:54:50 UTC 2018

I don't know how cursor draws got much more expensive, but in previous VMs, I'd see a small CPU increase (%11 CPU on Linux/X11) if I moved the mouse quickly back and forth on the background form.  As of commit 4d3f02655d, I see the CPU spike to 80% for the same task.  This is using a Squeak5.1 image, and the machine is a not too old i5 desktop.  Something seems to have taken an unreasonable hit.  What gives?

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