Re: [patch 2/3] mutex subsystem: fastpath inlining

From: Ingo Molnar
Date: Tue Dec 27 2005 - 06:55:21 EST



* Nicolas Pitre <nico@xxxxxxx> wrote:

> Some architectures, notably ARM for instance, might benefit from
> inlining the mutex fast paths. [...]

what is the effect on text size? Could you post the before- and
after-patch vmlinux 'size kernel/test.o' output in the nondebug case,
with Arjan's latest 'convert a couple of semaphore users to mutexes'
patch applied? [make sure you've got enough of those users compiled in,
so that the inlining cost is truly measured. Perhaps also do
before/after 'size' output of a few affected .o files, without mixing
kernel/mutex.o into it, like vmlinux does.]

Ingo
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