Re: [PATCH] [RFC] TAINT_PERFORMANCE

[Christoph Lameter]

On Tue, 19 Aug 2014, Laura Abbott wrote:

> I nominate CONFIG_DEBUG_PAGEALLOC, CONFIG_SLUB_DEBUG,
> CONFIG_SLUB_DEBUG_ON as well since I've wasted days debugging
> supposed performance issues where those were on.

CONFIG_SLUB_DEBUG is not enabling debugging. It just includes the code to
do so at kernel bootup. Not a performance problem. CONFIG_SLUB_DEBUG_ON is
a performance issue since debugging will be on by default.

CONFIG_SLAB_DEBUG is also a performance issue since this option makes slab
run with debugging.

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