One notice: Even on the super-super-fast SSD, there is a huge overhead
on IO. Basically, you can't go lower than 50 us on IO, and this is 5
ns, almost eternity for the modern processors. And you get minor page
fault, which is not the fastest thing in the world. Few context
switching,
Damnit! So no-one has done this or has a feel for it?
I was really hoping for the lazy option here.
So next question. Ideas for convoluting a reasonable test case?
Assuming I've got a compute node with 256GB RAM and 350GB of PCIe SSD
for swap, what next? We've got Rally going so could potentially
Hi all,
Question up-front:
Do the performance characteristics of modern PCIe attached SSDs
invalidate/challenge the old don't overcommit memory with KVM wisdom
(recently discussed on this list and at meetups and summits)? Has
anyone out there tried tested this?
Long-form:
I'm currently
I'm gonna forward this to my co-workers :) I've been kicking this idea
around for some time now, and it hasn't caught traction. I think it could
work for a modest overcommit, depending on the memory workload. We decided
that it should be possible to do this sanely, but that it needed testing.
I'm
