[CentOS] measuring kernel speed

[JohnS]

On Mon, 2010-05-10 at 11:17 -0400, Brunner, Brian T. wrote:
> 
> > -----Original Message-----
> > 
> > kernel-rt-2.6.24.7-149 is the newest Real Time Kernel.  RT is based on
> > 2.6.24 and not 2.6.18.  So no there is not a 2.6.18-kernel-rt 
> > for CentOS nor ever was one.  Akemi just has those for testing.
> > 
> > For as CentOS it has no RT kernel. Not yet, knock knock.
> > 
> > Answer your question?
> > 
> > John
> 
> It answered that question (thanks!) and uncovered another:
> 
> Has anybody run CentOS 5 with the rt kernel that Akemi Yagi has built?
> 
> If so, what modules etc have to be updated to use it? (this is asking,
> has anybody mapped the minefield?)
---
Yes I can say there is nothing wrong with Akemis.  I have ran them.
They did not explode.  The ones I have built have not exploded either
and the only down time is for reboots and hardware firmware updates on
the servers.

I can positively say I have had no probs on Dell and IBM even my own
desktop and various HP desktops.

Kmods are a no go at present so forget those.

They run very suprisingly and responsive under heavy cpu and memory
bound tasks.  Even when the interrupt service is off and done manually
is really when the performance come in and assigning single task per
cpu.  It's no kernel unless it's on a smp machine.

All testing and running has been under CentOS 5.4s current gcc building.

John