Performance with XEON

[David Walker]

This machine has 1GB of ram, the others that run faster are 256MBram on 
1ghz cpus... this is a 2.0xeon.

Top shows Xorg spike to 3%cpu and 2%ram.

here is my messages:
Nov 24 13:10:21 localhost input.agent[4035]:      evbug: blacklisted
Nov 24 13:10:21 localhost input.agent[4009]:      evbug: blacklisted
Nov 24 13:10:21 localhost input.agent[4021]:      tsdev: already loaded
Nov 24 13:10:21 localhost input.agent[4028]:      evbug: blacklisted
Nov 24 13:10:21 localhost input.agent[4035]:      evdev: already loaded
Nov 24 13:10:21 localhost input.agent[4021]:      mousedev: already loaded
Nov 24 13:10:21 localhost input.agent[4009]:      evdev: already loaded
Nov 24 13:10:21 localhost input.agent[4028]:      evdev: already loaded
Nov 24 13:10:21 localhost input.agent[4021]:      evbug: blacklisted
Nov 24 13:10:21 localhost input.agent[4021]:      evdev: already loaded



Everything from compilation to use in X has gone down.  And I have seen 
no apparant reason for it.  I am using the 2.6.8.1 -SMP kernel with 
preemption and still no gain.


--dave

Paul Sladen wrote:

>On Wed, 24 Nov 2004, David Walker wrote:
>
>[Moved over from  ubuntu-devel@  to here]
>
>Hello David,
>
>  
>
>>I have recently installed Ubuntu on my XEON based machine.  But, I have 
>>been having problems recently.  For an unknown reason the machine is not 
>>performing well at all.
>>    
>>
>
>Could you describe how it is 'not performing well'.  Is there any particular
>task that you can time and compare it to any other machines.
>
>For instance, does bootup take 18minutes?
>
>  
>
>>I do not know why, I did the same install of warty as my other machines
>>(using P4, and AMD).
>>    
>>
>
>Are the other machines exactly identical.  What's different about
>them---it's quite likely that I/O limitations, or only having 32MB of RAM is
>more likely to make a difference than the CPU.
>
>Have you looked at  'top'  to see the CPU usage, or had a look at the system
>logs to see if there are any timeouts or other problems reported:
>
>  sudo tail -f /var/log/messages
>
>  
>
>>I am wondering if there is a known problem why it should not be
>>performing well.
>>    
>>
>
>I do not believe so, if you've found something, we'd like to track it down.
>
>As somebody else suggested, you sometimes get a small (5%-10%) increase in
>raw CPU performance if you're running multiple programs and can make sure of
>the Hyper-Threading (HT) in the Xeon chips.
>
>You'll need in install the SMP (Multi-processor) kernel for this, but the
>difference is generally so small that if you notice it's appearing slow you
>won't be able to notice the gain.
>
>	-Paul
>  
>