On Mon, 28 Jul 2008, Ingo Molnar wrote:
> * Hugh Dickins <[EMAIL PROTECTED]> wrote:
>
> > I rather think CONFIG_FRAME_POINTER shouldn't exist at all (or be a
> > private, config-user-invisible, specific-to-a-few-arches thing): what
> > one wants to configure is how far to sacrifice cpu performan
* Hugh Dickins <[EMAIL PROTECTED]> wrote:
> [PATCH] sched: move sched_clock before first use
>
> Move sched_clock() up to stop warning: weak declaration of
> `sched_clock' after first use results in unspecified behavior (if
> -fno-unit-at-a-time).
>
> Signed-off-by: Hugh Dickins <[EMAIL PROTE
On Sat, Jul 26, 2008 at 10:36:42PM +1000, Benjamin Herrenschmidt wrote:
> On Sat, 2008-07-26 at 12:02 +0100, Hugh Dickins wrote:
> >
> > Hmm, perhaps it is doing sibling calls differently even without the
> > explicit -fno-optimize-sibling-calls (but when I add that option,
> > the vmlinux size do
On Sat, 2008-07-26 at 12:02 +0100, Hugh Dickins wrote:
>
> Hmm, perhaps it is doing sibling calls differently even without the
> explicit -fno-optimize-sibling-calls (but when I add that option,
> the vmlinux size does go up another 4400).
>
> Sorry, I'm most probably fussing over nothing,
> and
On Sat, 26 Jul 2008, Benjamin Herrenschmidt wrote:
> On Fri, 2008-07-25 at 19:45 +0100, Hugh Dickins wrote:
> >
> > I've Cc'ed Ben and linuxppc-dev because I wonder if they're aware
> > that several options (I got it from LATENCYTOP, but I think LOCKDEP
> > and FTRACE and some others) are doing a
On Fri, 2008-07-25 at 19:45 +0100, Hugh Dickins wrote:
>
> I've Cc'ed Ben and linuxppc-dev because I wonder if they're aware
> that several options (I got it from LATENCYTOP, but I think LOCKDEP
> and FTRACE and some others) are doing a "select FRAME_POINTER",
> which forces CONFIG_FRAME_POINTER=y
On Thu, 24 Jul 2008, Ingo Molnar wrote:
> * Hugh Dickins <[EMAIL PROTECTED]> wrote:
>
> > I've been using -fno-unit-at-a-time (to lessen inlining, for easier
> > debugging) for a long time
>
> Should we perhaps enable this automatically on CONFIG_FRAME_POINTER=y
> builds? Although a separate, d
