[fpc-pascal] Live pascal

[Martin Frb]

On 24/02/2026 11:58, Martin Frb via fpc-pascal wrote:
> On 24/02/2026 08:57, Michael Van Canneyt via fpc-pascal wrote:
>> Hm...
>>
>> A pattern emerges: the memory issues are caused on windows in firefox.
>> There must be some reason for this. I will investigate.
>
> My Firefox (under win 10 / Europe still gets OS updates)
>
> Loading the page adds 250 to 300MB (300 according to Taskmanager, 
> approx // 250 according to FF about:memory compare measurements)
> Running "compiling world" adds another 50 to 100.
> Repeated compiling does not further increase it (in task mgr)
>
> And having Firefox idle seems to reduce memory usage (while the tab 
> stays open) by most of it after a while.
>


When I open the settings, and do "enable jit compiler" then it takes 5 
seconds and gives me out of mem.

I did not see memory consumption raise during the 5 secs. So it likely 
was one sudden big alloc attempt.

After that compilation would not work : error empty string / file not 
found tmp/main

reloading the page and it works again, until I do enable jit again