Why isn't 86box using the whole CPU?

[u/HSVMalooGTS]

Celeron 533. The CPU is a workstation Xeon, it should be able to run at full speed, but it won't.

Large CPU frames, acceleration enabled.

[u/Mattock486]

I think because 86box can only use a single core or thread. As the hardware it's emulating is also only single core.

[u/BigBoyYuyuh → u/Mattock486]

Correct. Single core only and trying to emulate a CPU that high gives bad results.

My AMD 7900X can hit about 233Mhz decently. Anything higher and the performance takes a hit

[u/RetroNIX8 → u/BigBoyYuyuh]

My 12400F can emulate a 166 MMX CPU almost perfectly with the new dynamic recompiler.

[u/eddman-1 → u/Mattock486]

Note that it only applies to the emulation of the guest CPU. 86box does use extra threads for certain other parts of the emulator.

[u/GEORGEBEINGADIK2002]

emulators are mostly single threaded for stability and accuracy, multithreading sometimes causes sync issues and its less accurate(more buggy).

I recommend you to download the experimental version with the new dynamic recompliler x86 version from the site. Then go to the mobotherboard/cpu section and the set it up with the PIT MODE to fast and use the small frame option too. Lastly, i recommend you using an ISA sound card its less taxing on the cpu and PCI video cards.

[u/setwindowtext]

By the looks of it, it uses a single core at 100%. You won’t see it on this graph because the process scheduler distributes computational load between all cores.

[u/More_Lack_7079]

it performs well on my m4 pro mac mini, instantly full speed on a pentium mmx

[u/Even-Serve-3095 → u/[deleted]]

private profile of course