On 18/05/2021 20:59, Bo Berglund via fpc-pascal wrote:
I have a pretty sizable console app written with Delphi 15 years ago but ported
to Linux using FreePascal (3.2.0) with Lazarus (2.0.12) as IDE.
I have the same problem with high CPU usage for a 20-year-old Delphi App
compiled in Lazarus(2.0)
When run in debug mode within the Lazarus IDE it runs fine.
When run stand-alone as a Windows exe the CPU usage shoots up to 30% and
stays there.
I found that the problem is in the Lazarus Application.OnIdle event,
which fails to honour the Done parameter and runs continuously:
http://docwiki.embarcadero.com/Libraries/Sydney/en/Vcl.Forms.TApplication.OnIdle
Martin.
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