Re: [RFC][PATCH 0/3] Speed up SLUB poisoning + disable checks

From: Christoph Lameter
Date: Tue Jan 26 2016 - 09:57:37 EST


On Mon, 25 Jan 2016, Laura Abbott wrote:

> slub_debug=-: 7.437
> slub_debug=-: 7.932

So thats an almost 10% performance regression if the feature is not used.
The reason that posoning is on the slow path is because it is impacting
performance. Focus on optimizing the debug path without impacting the fast
path please.