Re:A new Linux memory controller promises to save lots of RAM
by washadjeffmad on Friday October 04, 2019 @07:39PM
(#21162831)
Likely immediately for HEDT owners.
I make use of VFIO on my home Threadripper, and while it's "only" 12 cores and 64GB RAM, it's NUMA so I have to use thread pinning to keep cores on the same die so they're not reaching across the Infinity Fabric to the other memory controllers.
With better memory allocation, I could assign >12 vCPUs on performance oriented VMs or use more than half my memory without incurring a latency penalty.
I make use of VFIO on my home Threadripper, and while it's "only" 12 cores and 64GB RAM, it's NUMA so I have to use thread pinning to keep cores on the same die so they're not reaching across the Infinity Fabric to the other memory controllers.
With better memory allocation, I could assign >12 vCPUs on performance oriented VMs or use more than half my memory without incurring a latency penalty.