Linux NUMA Patches Aim To Reduce Overhead, Avoid Unnecessary Migrations

[CommunityMember]

Still more workstation/high end enthusiast, but not purely "enterprise".

But it is not "critical" for most of those, just a nice to have (you get the benefit of improvements done primarily for others). And if you are actually paying for a Linux subscription (RH, Oracle, Canonical, etc.) that helps to pay for development you are one of the few (and I am sure everyone thanks you for your contributions - Thank you!).

[Drizzt321]

Numa (and other high end system) support is critical for the large enterprises that (in)directly pay for a lot of Linux development, but such patches always reminds me of: https://xkcd.com/619/

Not solely, with Threadripper (at least Zen1/1+ versions) I believe it had NUMA for the higher core counts since some CCX's hopped Infinity Fabric to get to the other die memory controllers. Likewise even with Zen2 Threadripper, there's a MUCH lower latency/hop difference, but it's still properly NUMA. This may help with that even more. Still more workstation/high end enthusiast, but not purely "enterprise".

[flower]

what about IO? does linux take into account which PCIe interface is connected to which numa node?

[tildearrow]

Typo:

Phoronix: Linux NUMA Patches Aim To Reduce Overhead, Avoid Unnecessary Migrations

A set of patches that continue to be worked on for the Linux kernek is reconciling NUMA balancing decisions with the load balancer. Ultimately this series is about reducing unnecessary task and page migrations and other NUMA balancing overhead...

http://www.phoronix.com/scan.php?pag...ile-Balance-V4

[CommunityMember]

Numa (and other high end system) support is critical for the large enterprises that (in)directly pay for a lot of Linux development, but such patches always reminds me of: https://xkcd.com/619/

[phoronix]

Phoronix: Linux NUMA Patches Aim To Reduce Overhead, Avoid Unnecessary Migrations

A set of patches that continue to be worked on for the Linux kernek is reconciling NUMA balancing decisions with the load balancer. Ultimately this series is about reducing unnecessary task and page migrations and other NUMA balancing overhead...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-NUMA-Reconcile-Balance-V4