[CentOS] SMP kernels and top output

Ross S. W. Walker rwalker at medallion.com
Mon Mar 26 14:49:29 UTC 2007


 
Your welcome.
 


________________________________

	From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Bisbal, Prentice
	Sent: Monday, March 26, 2007 10:48 AM
	To: CentOS mailing list
	Subject: RE: [CentOS] SMP kernels and top output
	
	
	Ahhh.... yes. It was right there in the man page for top. I must have read it too quickly. Sorry. And if press f and then "J", I can toggle the CPU # column too. Thanks for the help, Ross. 
	 
	-- 
	Prentice

________________________________

	From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Ross S. W. Walker
	Sent: Monday, March 26, 2007 10:38 AM
	To: CentOS mailing list
	Subject: RE: [CentOS] SMP kernels and top output
	
	
	Press the number '1' when in top.
	 
	-Ross
	 


________________________________

		From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Bisbal, Prentice
		Sent: Monday, March 26, 2007 10:28 AM
		To: centos at centos.org
		Subject: [CentOS] SMP kernels and top output
		
		

		Hi, everyone. I'm new to the list. This question may have come up before, but I couldn't find an answer to it by searching the centos website. Could be I was using bad keywords for my search.  

		I have 3 HP xw9300 workstations (dual AMD Opteron 64-bit processors) that I'm upgrading from RHEL3WS to CentOS 4.4. I've upgraded two already, with one left to go. On the system with RHEL3WS, 'top' shows statistics for each processor and what processor # each process is running on.

		On the systems running CentOS 4.4, the output of 'top' looks like that of a uniprocessors system - there are no statistics for each processor and it doesn't show which processor each process is running on. However, /proc/cpuinfo shows the two processors. 

		Does this mean that my OS isn't seeing the second processor, or has the behavior of top changed between the two OS versions? Is there any way that I Can verify that both processors are being used? 

		-- 
		Prentice 



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