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Thread: Top only displays 1 CPU




Top only displays 1 CPU
user name
2007-04-17 14:20:39
Recently I started to install some new Intel servers(both
blade and 2U)
using RHEL4U4.  When I run top, I only get a single line
displayed for
CPU.  With all my version 3 (2.4) boxes I get however many
cpu's that
are reported at startup.  I cannot find any reference to the
change of
top's behavior.  Can anyone point me to a doc or explain the
new
display?  Is there a way to see what my individual CPU's are
actually
doing?  Thanks.

Regards, Marshall
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Re: Top only displays 1 CPU
country flaguser name
United States
2007-04-17 14:25:16
Have a look at /proc/cpuinfo and see if all your cpu's show
there.  If 
so, make sure you're running the smp kernel.

McDougall, Marshall (FSH) wrote:
> Recently I started to install some new Intel
servers(both blade and 2U)
> using RHEL4U4.  When I run top, I only get a single
line displayed for
> CPU.  With all my version 3 (2.4) boxes I get however
many cpu's that
> are reported at startup.  I cannot find any reference
to the change of
> top's behavior.  Can anyone point me to a doc or
explain the new
> display?  Is there a way to see what my individual
CPU's are actually
> doing?  Thanks.
> 
> Regards, Marshall

-- 
veritatas simplex oratio est
		-Seneca

Andrew Bacchi
Systems Programmer
Rensselaer Polytechnic Institute
phone: 518.276.6415  fax: 518.276.2809

http://www.rpi.edu/~bacch
i/

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Re: Top only displays 1 CPU
country flaguser name
United States
2007-04-17 14:26:41
you want to use the toggle option "1"

from running ? in top
1,I       Toggle SMP view: '1' single/separate states; 'I'
Irix/Solaris mode


Andrew Bacchi wrote the following on 04/17/07 14:25:
> Have a look at /proc/cpuinfo and see if all your cpu's
show there.  If 
> so, make sure you're running the smp kernel.
>
> McDougall, Marshall (FSH) wrote:
>> Recently I started to install some new Intel
servers(both blade and 2U)
>> using RHEL4U4.  When I run top, I only get a single
line displayed for
>> CPU.  With all my version 3 (2.4) boxes I get
however many cpu's that
>> are reported at startup.  I cannot find any
reference to the change of
>> top's behavior.  Can anyone point me to a doc or
explain the new
>> display?  Is there a way to see what my individual
CPU's are actually
>> doing?  Thanks.
>>
>> Regards, Marshall
>

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RE: Top only displays 1 CPU
user name
2007-04-17 14:31:10
Yup, all my cpu's show up there and in dmesg and dmidecode,
etc, and
yes, I am running the smp kernel in all cases.

Regards, Marshall

>-----Original Message-----
>From: redhat-list-bouncesredhat.com 
>[mailto:redhat-list-bouncesredhat.com] On Behalf Of
Andrew Bacchi
>Sent: Tuesday, April 17, 2007 2:25 PM
>To: General Red Hat Linux discussion list
>Subject: Re: Top only displays 1 CPU
>
>Have a look at /proc/cpuinfo and see if all your cpu's
show there.  If 
>so, make sure you're running the smp kernel.
>
>McDougall, Marshall (FSH) wrote:
>> Recently I started to install some new Intel
servers(both 
>blade and 2U)
>> using RHEL4U4.  When I run top, I only get a single
line 
>displayed for
>> CPU.  With all my version 3 (2.4) boxes I get
however many cpu's that
>> are reported at startup.  I cannot find any
reference to the 
>change of
>> top's behavior.  Can anyone point me to a doc or
explain the new
>> display?  Is there a way to see what my individual
CPU's are actually
>> doing?  Thanks.
>> 
>> Regards, Marshall
>
>-- 
>veritatas simplex oratio est
>		-Seneca
>
>Andrew Bacchi
>Systems Programmer
>Rensselaer Polytechnic Institute
>phone: 518.276.6415  fax: 518.276.2809
>
>http://www.rpi.edu/~bacch
i/
>
>-- 
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RE: Top only displays 1 CPU
user name
2007-04-17 14:35:59
Perfect!  The 1 toggles between 1 and 4 cpu's.  Thank you
very much,
Kevin.

Regards, Marshall 

>-----Original Message-----
>From: redhat-list-bouncesredhat.com 
>[mailto:redhat-list-bouncesredhat.com] On Behalf Of
Kevin Kramer
>Sent: Tuesday, April 17, 2007 2:27 PM
>To: General Red Hat Linux discussion list
>Subject: Re: Top only displays 1 CPU
>
>you want to use the toggle option "1"
>
>from running ? in top
>1,I       Toggle SMP view: '1' single/separate states;
'I' 
>Irix/Solaris mode
>
>
>Andrew Bacchi wrote the following on 04/17/07 14:25:
>> Have a look at /proc/cpuinfo and see if all your
cpu's show 
>there.  If 
>> so, make sure you're running the smp kernel.
>>
>> McDougall, Marshall (FSH) wrote:
>>> Recently I started to install some new Intel
servers(both 
>blade and 2U)
>>> using RHEL4U4.  When I run top, I only get a
single line 
>displayed for
>>> CPU.  With all my version 3 (2.4) boxes I get
however many 
>cpu's that
>>> are reported at startup.  I cannot find any
reference to 
>the change of
>>> top's behavior.  Can anyone point me to a doc
or explain the new
>>> display?  Is there a way to see what my
individual CPU's 
>are actually
>>> doing?  Thanks.
>>>
>>> Regards, Marshall
>>
>
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ttps://www.redhat.com/mailman/listinfo/redhat-list
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