cpuload=0 lowers GPS considerably. cpuload=1 uses too much CPU

[mcdallas]

This is on an i7-7700k.

With cpuload=1 the GPUs mine at full speed (5.2 GPS) but they use one core per GPU.

With cpuload=0 they slow down by 20% to around 4.3 GPS but the cpu usage is normal.

That means that an i7 can support up to 7 GPUs without any slowdown. Any more than that and you are losing GPS either because there is a CPU bottleneck or because you have to use cpuload=0.

[yeastplume]

I have an i3 running with 9 GPUS, all set to cpuload = 1. Is there a reason you can't set cpuload = 1 on all cards in your system?

[mcdallas]

I can but it will max out at 7 GPUs and after that there will be a CPU bottleneck (and this is on an i7). Are you saying that on your i3 there is no bottleneck? do all 9 run full speed, same if you only had one GPU?

[yeastplume]

I admit not having tested properly, but I do get an average of around 45 GPS total with 9 cards, which seems about right. Just the way you phrased it made it sound that for some reason you had to set cpuload to 0 to run more multiple cards

[mcdallas]

I edited my post to make my point clearer, thanks.