The memory used for EA optimization in the MT5 strategy tester is abnormally large.

[Moebius-FX]

When I optimize my EA with MT5 strategy tester, the memory usage of my PC is close to 99%.

The memory on my PC is 64 GB.

Please allow me to specify memory usage.

Or reduce the memory usage.

[Alain Verleyen]

Seems reasonable request. But it's not how it's designed, the MT5 Strategy Tester will use all the available resources if needed, so you would better use a dedicated computer if needed.

MQ has made this choice intentionally, so I doubt they will full fil your request.

[Carl Schreiber]

Due to 64GB RAM I assume you have quite a lot kernels (real & hyper) in your CPU -  just disable some of them in the Tester's tab Agents. The tester could become faster if the PC has started to swap due to the 99% usage.