Observing that the WIndows version of my app took a while to load up a listbox, I did some profiling and then closer (within a method) inspection of timings, which pointed the finger at Listbox.AddRow(). So I made a simple app with this code in a button’s Pressed handler:
Var i As Integer, clockStart, tnow, timeTaken As Double
clockStart = System.Microseconds ()
msgArea.Text = ""
theListBox.RemoveAllRows ()
for i = 0 to 20000
theListBox.AddRow ()
next
tnow = System.Microseconds ()
timeTaken = (tnow - clockStart) / 1000.0
msgArea.Text = "That took " + timeTaken.ToString + " msecs"
Results:
2018 Mac Mini running Sonoma - typically 70msec.
Mint running in a VB VM in this Mini - typically 110 to 130 msec.
Win-11 running in a VB VM on this Mini - ranges from 8000 msec down to 6000 or so, which matches what I saw in my app. I won’t have access to real hardware running Win-11 for a couple of weeks but if anyone has any insight as to this major discrepancy I’d appreciate it.
For Lin/Win in the above, running remotely.
7 posts - 4 participants
