IQ-recording window starts slowly at high load

[PD3LK]

I think this is a setting in your NVidea software:
https://www.nvidia.com/en-us/geforce/fo ... er-saving/

[sm6fhz]

OK, thanks Leon.
Done that yesterday
73 / Ingolf, SM6FHZ

[sm6fhz]

Hi Simon.
The amount of delay seem to be related to the amount of RAM used (or rather the amount of RAM available).
If the used amount of RAM is ~50% the delay is ~20 sec if RAM used is ~85% it goes up to 10 min.
It seems to be SDRC that eats RAM, so I reduced all buffers to a minimum. No signs of that the amount of RAM used increases with time while running SDRC.
Going from 8 or 10 active receivers to 6 active receivers did not do much change. CPU ~15% and GPU ~8% with both. Still plenty of headroom wrt GPU resources it seems. Would of cause like to trade more GPU load against less CPU load
73 / Ingolf, SM6FHZ

[Simon G4ELI]

Ingolf,

Again - you are really at the very maximum performance for your computer. If I get Direct2D multithreading working it will reduce the load on the main thread.

Long term you may have to consider a new computer.

Kit tomorrow morning.