Re: [PATCH 4/5] kmemtrace: SLUB hooks.

Frank Ch. Eigler
2008-08-11T15:34:09Z

Christoph Lameter <cl@linux-foundation.org> writes:

> [...]
>> There should be no extra function calls when this is configured on but
>> tracing disabled. We try very hard to keep the speed of the tracer as
>> close to a non tracing kernel as possible when tracing is disabled.
>
> Makes sense. But then we have even more code bloat because of the
> tests that are inserted in all call sites of kmalloc.

Are you talking about the tests that implement checking whether a
marker is active or not? Those checks are already efficient, and will
get more so with the "immediate values" optimization in or near the
tree.

- FChE