Re: Good luck when RedHat 7.0 comes out (was RE: test5 oops after kswapd)...

From: Jes Sorensen (
Date: Fri Aug 04 2000 - 10:22:10 EST

>>>>> "Matthias" == Matthias Andree <> writes:

Matthias> On Fri, 04 Aug 2000, Jes Sorensen wrote:
>> I am beginning to wonder if you really know what you are doing. Do
>> you actually know what -O6 does? Automatically unrolling loops and
>> inlining functions behind your back is not necessarily something
>> you want on a modern CPU.

Matthias> That is exactly what I want, particularly do I want C++ crap
Matthias> inlined. I know this bloats my code and eats up my memory,
Matthias> but it's the only way to get reasonable performance out of
Matthias> some projects that I have; apart from the fact that -O6
Matthias> won't have much to inline when your object files are small.

Ok at least you considered it, just remember it eats your cache for
breakfast as well. You are often better off explicitly inlining small
functions that show up in profiles.

>> I use 2.96 every day and I frequently report bugs in it, on the
>> ia64!

Matthias> 2.96 is not a release version yet, so I don't care. It's
Matthias> nice however that somebody is using it to find the bugs and
Matthias> get them squished so I can have a stable gcc release some
Matthias> time in the future :-)

It's the only one that works with glibc-2.2/ia64 (well with a few
patches applied ;-)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

This archive was generated by hypermail 2b29 : Mon Aug 07 2000 - 21:00:13 EST