Some new data. I ran Argus monitor. The first test, Bryce uses all 6 physical cores of CPU0 to the max and even goes to max turbo boost on the xeon i5 2630. It uses nothing of cpu1. So if you want Bryce to use 8 cores, you need an 8 core cpu.
Second test after a couple of days ( and reboots). Bryce used nothing of CPU0 and all of CPU1. Go figure. This is odd. The only BIOS change I made was to set the cpu’s to performance.
Why did Bryce change from cpu0 to cpu1? Clearly, it only sees one CPU. Apparently not the same one every time.
So, now some more comparisons between medium and priority and resmon vs argus….
Regardless of medium or high priority render, Bryce used all 6 physical cores of cpu1 to max frequency (turbo boost) in argus, but in resmon, it showed about 10 percent usage of 8 cores in resmon (mix of virtual and actual) on cpu1.
A while back I saw 6 cores in resmon slammed to the max.
I have no idea what is going on.
On low priority that is only supposed to use one core, I saw spike on both CPU’s to max for all cores in argus. It would run one CPU to max, then back off and run the other to max. Resmon showed one core to 80 percent and 3 more to lower levels around 10 to 20 percent.
Either the monitors are glitchy or Bryce is random in its cpu usage.
I ran a benchmark render. Sorry I didn’t time it accurately.
With low priority it was around 10 minutes and hardly used the resmon. Argus was random but several of the cores on cpu1 ran up a bit.
With medium priority it was half the time, about 4 minutes. Funny. Argus slammed cpu1 as expected. nothing on cpu0. But here’s the interesting thing. On resmon, 6 cores ran about half way on usage for the main render, then on AA, 4 cores (and they were different cores, went to max. Argus just showed all 6 cores of cpu1 on both main render and AA at max.
So there is a difference in how resmon reads cpu usage and how argues does.
With high priority, on the main render, resmon showed 10 cores in use on cpu1 and none on cpu0. On anti aliasing, 8 cores at 90 percent and 2 at 20 percent. on cpu1 and nothing on cpu0.
Just over 3 minutes for the full render.
So it appears that Bryce might use more than 8 cores(virtual and actual) and it might use some virtual cores fully.