The reason for this is that while the CPU may have hyperthreading on it, you can always disable some CPU cores with the maxcpus=$NUM on the kernel line in grub.
This shell string will allow you to see how many physical CPU packages exist (physical ID), how many cores are active (counting core IDs in use) and how many cores each package provides (cpu cores).
Do not, however, pipe this to word count, as you will get an incorrect number unless you sort it uniquely or pass it to uniq.
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)
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)
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)
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)
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)
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)
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)
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)
Discussion started by: gabhanes
1 Replies
LEARN ABOUT DEBIAN
xsysinfo
XSYSINFO(1x) Debian GNU/Linux XSYSINFO(1x)NAME
xsysinfo - Display Linux kernel parameters in graphical form
SYNOPSIS
xsysinfo [-help] [-update n] [-[no]title] [-[no]labels] [-[no]loadavg] [-[no]load] [-[no]mem] [-[no]swap] [-[no]smp]
DESCRIPTION
Xsysinfo is an X application to display some Linux kernel parameters in graphical form. It is like a mix of top, free and xload with the
difference that the values are shown in form of a horizontal bar. The displayed values are: CPU load average, CPU load, memory and swap
sizes (details see below).
OPTIONS -update n
Set update rate to n milli-seconds
-title Show title string
-notitle
Don't show title string
-labels
Show gauge labels
-nolabels
Don't show gauge labels
-loadavg
Show CPU load average value
-noloadavg
Don't show CPU load average value
-load Show CPU load value
-noload
Don't show CPU load value
-smp Show separate SMP loads
-nosmp Don't show separate SMP loads.
-mem Show memory info
-nomem Don't show memory info
-swap Show swap info
-noswap
Don't show swap info
-help Display options
DISPLAY
Xsysinfo display the following values:
CPU load average
CPU load average between 0.000-8.000. The gauge's bar is subdivided into segments, where one segment represents a load value of 1.0.
The bar's full length is automatically scaled, depending on the displayed value.
CPU load
percentage CPU load time to CPU idle time subdivided in three segments: user load, system load and nice load. On an SMP system the
-smp option replaces the single total load meter with a separate meter for each processor.
Memory The memory gauge's bar is subdivided into two segments with the amount of physical memory, which is used by processes on the left
and physical memory used for the page and buffer cache on the right. The length of the whole bar, which is the sum of these two val-
ues, shows the amount of physical memory currently used by the system.
Swap The percentage of swap space used by the system to total amount of swap space.
AUTHORS
Xsyinfo is written by Gabor Herr <herr@iti.informatik.th-darmstadt.de> and currently maintained by Ronald Wahl <ronald.wahl@informatik.tu-
chemnitz.de>.
This manual page was created by Roland Rosenfeld <roland@spinnaker.de> for the Debian GNU/Linux system (but may be used by others).
Debian Project December 2005 XSYSINFO(1x)