On Tue, 2007-03-13 at 00:56 +0100, Andi Kleen wrote:
> On Tue, Mar 13, 2007 at 10:18:03AM +1100, Rusty Russell wrote:
> > OK, this confused me:
> >
> > Function reordering (REORDER) [N/y/?] (NEW) ?
> >
> > This option enables the toolchain to reorder functions for a more
> > optimal TLB usage. If you have pretty much any version of binutils,
> > this can increase your kernel build time by roughly one minute.
> >
> > "If you have pretty much any version of binutils"? Huh?
> >
> > You mean "This will slow your kernel build by about a minute"?
>
> Yes. Lots of sections seem to trigger some quadratic behaviour in ld.
>
> It might be fixed in some unreleased CVS version though (not 100% sure)
>
> -Andi
OK, well here is a patch for the moment.
==
Clarify CONFIG_REORDER explanation
if (1 && X) => if (X).
Signed-off-by: Rusty Russell <[EMAIL PROTECTED]>
diff -r de5618b5e562 arch/x86_64/Kconfig
--- a/arch/x86_64/Kconfig Tue Mar 13 11:41:55 2007 +1100
+++ b/arch/x86_64/Kconfig Tue Mar 13 17:27:05 2007 +1100
@@ -632,8 +632,8 @@ config REORDER
default n
help
This option enables the toolchain to reorder functions for a more
- optimal TLB usage. If you have pretty much any version of binutils,
- this can increase your kernel build time by roughly one minute.
+ optimal TLB usage. This will slow your kernel build by
+ roughly one minute.
config K8_NB
def_bool y
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
