Hi Peter - I had understood that this always a problem as Morphic is always polling for events (so am surprised you found an image where it’s not happening). I believe that recent work has almost got to a point where this can be resolved - there were some recent status reports on this, and maybe it might get into pharo9?
I’m sure someone has a much better explanation for you - and an explanation of what’s involved to fix it (I guess you have to block the event loop somehow so it waits vs polls). Tim On Sat, 11 Apr 2020, at 12:27 PM, PBKResearch wrote: > Hello. I have noticed a curiosity when I am running Pharo 8 on Windows 10. I > am in the habit of leaving the Task Manager open when I am working, and it > seems that Pharo 8 is using the CPU when I am doing nothing. When the image – > which is exactly as first loaded, with only the welcome window visible – is > loaded, CPU consumption is zero. I open a playground, get a list of recent > files from the playground cache, open one of the files but do nothing with > it; the CPU activity is constantly changing within the range 2.5% - 3.5%. > After 5 mins of no Pharo activity by me, the CPU is still in the same range. > > I reloaded an earlier image, which is Moose Suite 6.1 (Pharo 6) and opened a > playground in the same way. After a few seconds, the CPU usage dropped to > zero. This activity is a feature of the newest versions only. > > It’s obviously not a major problem, but I would like to know, if just out of > curiosity. > > Thanks for any help. > > Peter Kenny > > My Pharo 8 details: > Build information: > Pharo-8.0.0+build.1124.sha.0932da82f08175e906b0e2a8052120c823374e9f (32 Bit) > Installed from Pharo Launcher on 8 Apr 2020 > VM details: > CoInterpreter * VMMaker-CompatibleUserName.1577968628 uuid: > d729bf66-2ea7-5a6d-b1eb-fc005785636d Jan 3 2020 > StackToRegisterMappingCogit * VMMaker-CompatibleUserName.1577968628 uuid: > d729bf66-2ea7-5a6d-b1eb-fc005785636d Jan 3 2020 > VM: 201911290039-dev-7 > admin@MacBook-Pro-de-admin.local:dev/Pharo/git-repos/pharo-vm/repo Date: Thu > Nov 28 21:39:57 2019 CommitHash: 9b6bd16d3 Plugins: 201911290039-dev-7 > admin@MacBook-Pro-de-admin.local:dev/Pharo/git-repos/pharo-vm/repo > >
