freebsd stable - Sep 2005 - Anyone has a 5.4-RELEASE SMP SCHED_ULE in production ?

I have a dual Xeon running 5.3-RELEASE SMP, which I plan to upgrade to 
5.4, enabling SCHED_ULE.
Who's running a 5.4 SMP in a production environment, using SCHED_ULE ?
Is the performance significant better ?

Thanks in advance,
Mariano.

On 9/15/05, Mariano Benedettini <diodex@gmx.net>
wrote:
> I have a dual Xeon running 5.3-RELEASE SMP, which I plan to upgrade to
> 5.4, enabling SCHED_ULE.
> Who's running a 5.4 SMP in a production environment, using SCHED_ULE ?
> Is the performance significant better ?
> 
> Thanks in advance,
> Mariano.
I suggest you wait for 6.0 RELEASE and upgrade to that version. Some
problems wrt ule+libpthread+smp were fixed in 6.0, but I am not sure
if the changes were merged to 5.4.

Jiawei
-- 
"Without the userland, the kernel is useless."
               --inspired by The Tao of Programming

Hi.

On Wed, Sep 14, 2005 at 11:08:01PM -0300, Mariano Benedettini
wrote:
> Who's running a 5.4 SMP in a production environment, using SCHED_ULE ?
Only a fool :-)

I suggest you better wait for some 6.x-RELEASE and an official statement 
about using ULE. Although ULE in RELENG_6 has a lot of fixes, ULE in 
RELENG_5 does not have, there are reports from time to time, that 
suggest, that there still might be problems with ULE in some cases. 
Apart from that is RELENG_6 befroe any 6.x-RELEASE probably not a good 
idea for a production system.

- Oliver


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