Thread: Display number of processors on linux

Quick question - How do I display number of processors on linux?

Simply use top command:

Code:

top

Get info from /proc/cpuinfo with the help of grep command

Code:

grep -c processor /proc/cpuinfo

tom,

the cmd top does not display the # of processors !!!

Originally Posted by B!n@ry

tom,

the cmd top does not display the # of processors !!!

hey u can type top and hit 1 to see processors

cheers

Originally Posted by raj

Originally Posted by B!n@ry

tom,

the cmd top does not display the # of processors !!!

hey u can type top and hit 1 to see processors

cheers

Oh, really nice ...
Thanx for that point raj

#top
this command will only show top running porcesses


#ps aux|wc -l
78

#ps -el|wc -l
78

#ps -ael|wc -l
78

show the number of running processes

Originally Posted by tom

Quick question - How do I display number of processors on linux?

Simply use top command:

Code:

top

Get info from /proc/cpuinfo with the help of grep command

Code:

grep -c processor /proc/cpuinfo

correction

Code:

grep -c processor /proc/cpuinfo

[/quote]

right info for cpu

grep CPU /proc/cpuinfo
grep cpu /proc/cpuinfo

and to see the process in the linux machine? start searching in /proc/ thats the one which does the heavy dirty work! and also make sure you know difference between process and threads. like process is when you run xmms it opens up 3 windows, xmms is a process and those 3 windows are threads, threads are not identical with processess.
best way?
man lsof

How can I Get only the correct number of CPU's, the following output shows that my server has 8 CPU's but physically how many does it have? now I know it's not 8 of them???

grep CPU /proc/cpuinfo
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz
model name : Intel(R) Xeon(R) CPU E5345 @ 2.33GHz



grep cpu /proc/cpuinfo
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10
cpu family : 6
cpu MHz : 2333.400
cpu cores : 4
cpuid level : 10

Try

Code:

dmidecode --type 4 
dmidecode --type 4 | grep -c Socket

Get Information About Your BIOS / Server Hardware From a Shell Without Opening Chassis ( BIOS Decoder )

top and grep -c processor /proc/cpuinfotop
commands are not same sir..
ple describe me...
i m getting from it that
the top comm and is showing the total process info. (tasks ). which are currently on
but grep -c ......XXXXXXXX...........command showing how many no of process going on.. how they are same.. plz ans me

You need to only type:

Code:

grep -c processor /proc/cpuinfo