I believe pressure here is referring to the workload being asked of the machine, rather than the result of how it is processing that workload. Basically: More

I believe pressure here is referring to the workload being asked of the machine, rather than the result of how it is processing that workload. Basically: More Tabs = Pooling is more performant, less tabs individual process is more performant. I don't know how true that is, but I'm fairly certain that is what GP is trying to get across.