I am observing high load average on RHEL5 server and need to check the number of core processors available on the box to give me a bigger picture on whether or not I should be worried.
I have always checked the physical count quite simply.....
I'd grep for something a little less generic than 'processor'. That might turn up in a CPU name or something potentially. And pin it to the beginning of the line where it should always be found.
It could mean one 8-core CPU, a pair of 4-core CPU's, four 2-core CPU's, or 8 1-core CPU's. Cores are counted individually. If you care which belongs in what chip, that's the physical ID.
If you just care about the number of cores, counting the line match like that will work fine.
In fact, you don't need to even match anything. Just count the number of records, splitting on blank lines, by setting RS to "". Then when awk runs out of input, print NR, the number of records. On my dual-core system:
Yip, simply looking for the number of cores which according to this is 8. Thing is though it does not correspond to what the hardware mgmt interface sayes?
# hpasmcli
HP management CLI for Linux (v2.0)
Copyright 2008 Hewlett-Packard Development Group, L.P.
hpasmcli> show server
System : ProLiant BL460c G6
Serial No. : GB8033X7FV
ROM version : I24 03/30/2010
iLo present : Yes
Embedded NICs : 2
NIC1 MAC: 78:e7:d1:65:3a:60
NIC2 MAC: 78:e7:d1:65:3a:64
Processor: 0
Name : Intel Xeon
Stepping : 5
Speed : 2933 MHz
Bus : 133 MHz Core : 4 Thread : 8
Socket : 1
Level2 Cache : 1024 KBytes
Status : Ok
Processor total : 1
I read that Entitlement CPU should be set to max 75% compare to Virtual CPU. May I know the reason.
I have set the Entitlement CPU = Virtual CPU on AIX . It works fine .
Can you help to understand. (1 Reply)
seeing weirdness across some 7.1.5.1 LPARs - they all have 2 vCPUs allocated shared. With prtconf they show 2 CPUs, 'lsdev -c processor' concurs, and 'lsattr -El procX' shows that SMT is enabled and there are 2 SMT threads (power5, sorry). Yet running topas on them shows 2 CPUs on some and 4 on... (3 Replies)
We have a single threaded application which is restricted by CPU usage even though there are multiple CPUs on the server, hence leading to significant performance issues. Is it possible to merge / combine multiple CPUs at OS level so it appear as a single CPU for the application? (6 Replies)
Hello,
sysinfo throws out below 3 CPU counts. Can anyone help me understand what each of these means?
CPU Count Socketed is 2
CPU Count Physical is 8
CPU Count Virtual is 16
First one seems obvious. However, I wonder how there can be 8 Physical CPUs, if... (2 Replies)
I have a number of LPARs on one P520. All LPARs are running 5.3 and I observe the following:
On some LPARs the number of CPUs found do not match between topas and mpstat.
Server 1:
$ mpstat
System configuration: lcpu=4 ent=0.2 mode=Uncapped
cpu min maj mpc int cs ics rq ... (1 Reply)
We have purchased four intels xeon processors
Intel® Xeon® Processor E7530 (12M Cache, 1.86 GHz, 5.86 GT/s Intel® QPI) with SPEC Code(s) SLBRJ
As per the specification each cpu has 6 cores therefore we have 24 cores (considering 4 cpus).
Now how would i calculate the number of vcpus that can... (1 Reply)
Hello Friends,
On one of my Solaris 10 box, CPU usage shows 100% using "sar", "vmstat". However, it has 4 CPUs and prstat and glance are not showing enough processes to justify high CPU utilization.
=========================================================================
$ prstat -a
... (4 Replies)
hi,
i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)