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Here is the output of my "top" command on :
Linux earth.domain.com 2.4.21-47.ELsmp #1 SMP Wed Jul 5 20:38:41 EDT 2006 i686 i686 i386 GNU/Linux
11:17:53 up 46 days, 5:55, 4 users, load average: 0.10, 0.19, 0.27
138 processes: 137 sleeping, 1 running, 0 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 5.7% 0.0% 3.3% 0.0% 0.0% 0.2% 90.6%
cpu00 7.3% 0.0% 2.7% 0.0% 0.0% 0.1% 89.6%
cpu01 5.3% 0.0% 5.5% 0.0% 0.0% 0.3% 88.6%
cpu02 3.5% 0.0% 2.3% 0.0% 0.0% 0.1% 93.8%
cpu03 6.5% 0.0% 2.5% 0.0% 0.0% 0.1% 90.6%
Mem: 2055424k av, 2021780k used, 33644k free, 0k shrd, 313208k buff
1253468k actv, 229072k in_d, 30880k in_c
Swap: 2096376k av, 0k used, 2096376k free 925672k cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND
18604 apache 16 0 16080 15M 5012 S 1.8 0.7 0:18 0 httpd
31229 apache 16 0 15280 14M 4992 S 1.1 0.7 0:21 3 httpd
25015 apache 16 0 14300 13M 4584 S 1.0 0.6 0:08 2 httpd
18577 apache 15 0 15940 15M 4612 S 0.1 0.7 0:15 1 httpd
how many CPUs do I have?
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Hi,
There are three options:
1) You have a quad CPU system
2) You have a dual CPU system with hyperthreading
3) You have one dual core CPU with hyperthreading (but i'm not sure if this exists)
If your system is an ordinary desktop, i don't think 1 is correct. 2 could be correct if you're a real die hard tweaker, or your system is an ex-server system. 3 might be the case if you just bought a new system.
One part of the puzzle might be solved by checking /proc/cpuinfo. Open a terminal and give the command cat /proc/cpuinfo .
If you look at the flags, there is a list of abbriviations there. If you see ht there (short for hyperthreading), you have hypertheading, and should devide the number of cpu's to get the number of cores in your system.
There are two interesting lines there: one called "model name" and one called "flags". The model name contais the info of the processor name, if it's an intel D processor or core 2 duo system, it's a dual core (and in that case 2 cores is one physical cpu on the board).
So if (for example) you processor is a pentium D and you see the HT flag, there's one CPU in the system (one CPU with 2 cores, and both are acting as two to the OS because of hyperthreading).
In unsure post the output of /proc/cpuinfo here.
Best regards,
pa4wdh
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----
The biggest difference between M$ stuff and the rest ? Most stuff is secure by design, M$ stuff is secure by accident.
bash# killall gaim
killall: Don't shoot the messenger !
If we have /dev/powerbutton, what would touch /dev/powerbutton do ?
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here is what it says:
cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Xeon(TM) CPU 2.80GHz
stepping : 5
cpu MHz : 2800.147
cache size : 512 KB
physical id : 0
siblings : 2
runqueue : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 5583.66
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Xeon(TM) CPU 2.80GHz
stepping : 5
cpu MHz : 2800.147
cache size : 512 KB
physical id : 0
siblings : 2
runqueue : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 5596.77
processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Xeon(TM) CPU 2.80GHz
stepping : 5
cpu MHz : 2800.147
cache size : 512 KB
physical id : 3
siblings : 2
runqueue : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 5596.77
processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Xeon(TM) CPU 2.80GHz
stepping : 5
cpu MHz : 2800.147
cache size : 512 KB
physical id : 3
siblings : 2
runqueue : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
bogomips : 5596.77
so what does this mean?
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As far as i know, Xeon is not available in dual core version, and the flags list ht, so there are two physical CPU's in your system, but hyperthreading makes it look like 4.
It also means that it's quite a good machine :-) (Well, as far as i can see from the processor specs :-) )
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----
The biggest difference between M$ stuff and the rest ? Most stuff is secure by design, M$ stuff is secure by accident.
bash# killall gaim
killall: Don't shoot the messenger !
If we have /dev/powerbutton, what would touch /dev/powerbutton do ?
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