Re: [v7 0/8] Reduce cross CPU IPI interference

From: Christoph Lameter
Date: Mon Feb 06 2012 - 13:19:48 EST

On Sun, 5 Feb 2012, Gilad Ben-Yossef wrote

> Frederic has the latest version in a git tree here:
> git://
> nohz/cpuset-v2-pre-20120117
> It's on top latest rcu/core.

Hmmm.. A pull vs upstream leads to lots of conflicts.

> But the good news is that with these hacks applied I managed to run a 100%
> CPU task with zero interrupts (ticks or otherwise) on an isolated cpu.


> Disregarding TLB overhead, you get bare metal performance with Linux user
> space manageability and debug capabilities. Pretty magical really: It's like
> eating your cake and having it too :-)

We definitely need that.

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