F16 slowness

[Michael Schwendt]

On Sat, 10 Sep 2011 17:18:48 -0500, MC (Mike) wrote:

> On Sat, 2011-09-10 at 11:36 -0700, Adam Williamson wrote:
> 
> > I think Michael was testing the "slub_debug=-" parameter.
> > 
> > In the bug report, I noted that I recompiled rc5 with debugging disabled
> > and it does indeed clear up all the performance problems. Seems like the
> > debugging overhead got a lot heavier between 3.0 and 3.1, so you really
> > see the sluggishness in 3.1 kernels. See
> > https://bugzilla.redhat.com/show_bug.cgi?id=735268 for the numbers.
> 
> Must be doing it wrong, but I passed slub_debug=- paramater to grub when
> booted with below kernel and still slow.  so =- with a - after the =
> sign is correct?

Yes, according to the SLUB docs it is.

With yesterday's updates its slowest of all so far. "xterm -e mc" window
resize test takes 53 seconds to redraw up to full vertical size.
It takes approx. 4 secs already for MC to redraw for the first time.
That's just the most obvious to notice. In other apps, delays are 
noticable, too, e.g. even when deleting/inserting in Claws Mail's own
editor.

There also has been a Mesa update.

-- 
Fedora release 16 (Verne) - Linux 3.1.0-0.rc5.git0.0.fc16.x86_64
loadavg: 0.33 0.25 0.20