three-line patch?

Posted Jan 23, 2003 2:54 UTC (Thu) by cpeterso (guest, #305)
Parent article: The new NUMA scheduler

I am a little confused about the origin of the "three-line patch". Was that patch taken from the ongoing NUMA schduler work? Or was it written by an "outsider" who demonstrated the same benefits as the "big" NUMA scheduler, but with far fewer lines of code?

three-line patch?

Posted Jan 23, 2003 3:02 UTC (Thu) by corbet (editor, #1) [Link]

Sorry, I should have been more explicit there. The patch was by Martin Bligh, who has been working with the NUMA scheduler for a while. Here's a copy with his explanation of what's going on.

three-line patch?

Posted Jan 23, 2003 21:27 UTC (Thu) by mbligh (subscriber, #7720) [Link]

I wrote the "3-line" patch to show how non-invasive a NUMA scheduler could be. It also changes the design of the NUMA scheduler to become a set of "concentric circles" as far as load-balance is concerned - I think this is a better design.

IMO, in the post-freeze environment, the only way to proceed is small, well contained patches that obviously don't break anyone else ...