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Sierra

Posted: Sat Mar 25, 2017 3:37 pm
by Pook
Sheepshaver has worked brilliantly for me for many years. I recently upgraded my OS to Sierra. I anticipated Sheepshaver not working but it launched okay. However the program I use most Lotus 123 would not always start up. Sometimes fine but most of the time would flash like it was starting for a split second and quit.

Through much experimentation with refresh rates etc. I think I found the problem. It seemed it could be a memory issue. The setting for RAM size from previous was 512. Increasing it above 1024 and Sheep wouldn't launch. Setting it to the bottom of 128 and all seems good.

Why would it need to be reduced when upgrading to Sierra? I have 8GB of RAM on my Mac so how could such a small adjustment make a difference?

All replies welcome,
Pook

Re: Sierra

Posted: Sat Mar 25, 2017 4:30 pm
by Ronald P. Regensburg
Setting RAM size more than 512 MB for SheepShaver may indeed cause problems. It is also unnecessary. For many users 64MB will be sufficient, 128MB is fine, 256MB is plenty, and 512MB is probably more than you will need.

SheepShaver does things in memory on the host that it shouldn't and newer host OSes may be more critical. The latest OSX/macOS versions fill up all available memory and do not release memory when you quit applications. Memory is only released when needed. However, 512MB for SheepShaver works with Sierra on my machine. If you want to use 512MB, you can try to restart your host machine to clear memory and try again.