I am very new to scripting and I wanted to write a unix shell script which can give me,
1)number of cpu's in a box
2)number of cores per cpu
3)total number of cores in abox (ie multiplying 1&2)
I am also trying to figure out how to check if hyper-threading is enabled in the server and also this check to script.
intially I am looking this to run on linux then wanted to implement it on other flavours of unix.
Each unix flavor will require its own section within the script...not to mention different versions of the same unix flavor may use different commands to get the information that you are looking for...and /proc/cpuinfo is found only on linux. You need to learn some shell scripting before trying to write this sort of thing...
echo num_cpus = `grep 'physical id' /proc/cpuinfo | sort -u | wc -l`
read num_cpu
I'm trying to write a simple unix script that will delete files after 30 days of being created. I've never done this before but conceptually it sounds easy. Here is what I'm trying to do:
Get System Date
Get File Date
If (sysdate-filedate>30days)
rm file
All of these files are contained... (1 Reply)
I am running HPUX and using WLM (workload manager). I want to write a script to fork CPUs to basically take CPUs from other servers to show that the communication is working and CPU licensing is working. Basically, I want to build a script that will use up CPU on a server. Any ideas? (2 Replies)
I want to write a bash script to:
1. Send an email from localhost to an external gmail account. (gmail then automatically forwards the message back to a pop account on the same server.
2. Script waits 3 minutes then checks to see if the email arrived, and if not, it sends an email to... (9 Replies)
#!/bin/csh
echo hello world
this is what i got in a text file called ss1.
i type "chmod 755 ss1.txt" to make it executable.
then when i type
ss1
or
ss1.txt
it says
"ss1 command not found"
what am i doing wrong? (19 Replies)
how to find out total number of users logged in a server from uptime . i mean to say i need the total output of unix command . who gives the out put at a particular time . I need at all time from which machine who has connected , (3 Replies)
Hey all
Im looking to reduce the number of cpus available on a certain node in our cluster available for jobs using SGE.
i.e. we have one node that has 24 cpus available for jobs on SGE, i would like to reduce that to 16. Thanks (1 Reply)
We have a production setup where we have RHEL instances on VMware. We have 2 RHEL instances on VMware now each having 4 CPUs/cores each. I want to put up another RHEL instance but my query is that can we allocate only 1 CPU/core for the new instance.
I hope, my query is clear that can we... (3 Replies)
Hi,
I want to get total number of cores on my all non-global zones on Solaris 10. I got two methods and both are giving different results. Below link is a script, which tells me that total cores are 8
Mandalika's scratchpad: Oracle Solaris: Show Me the CPU, vCPU, Core Counts and the... (4 Replies)
Hello,
I have few old V210/V240, running Solaris-8. I am trying to find, number of physical CPUs, number of cores and number of virtual processors. psrinfo is giving me confusing status.
It looks like, there are 2 physical CPUs, but psrinfo -p shows me just 1
bash-2.03$ psrinfo -v
Status of... (4 Replies)
Discussion started by: ron323232
4 Replies
LEARN ABOUT SUSE
cpuid
CPUID(4) Linux Programmer's Manual CPUID(4)NAME
cpuid - x86 CPUID access device
DESCRIPTION
CPUID provides an interface for querying information about the x86 CPU.
This device is accessed by lseek (2) or pread (2) to the appropriate CPUID level and reading in chunks of 16 bytes. A larger read size
means multiple reads of consecutive levels.
The lower 32 bits of the file position is used as the incoming %eax, and the upper 32 bits of the file position as the incoming %ecx, the
latter intended for "counting" eax levels like eax=4.
This driver uses /dev/cpu/CPUNUM/cpuid, where CPUNUM is the minor number, and on an SMP box will direct the access to CPU CPUNUM as listed
in /proc/cpuinfo.
This file is protected so that it can only be read by the user root, or members of the group root.
NOTES
The CPUID instruction can be directly executed by a program using inline assembler. However this device allows convenient access to all
CPUs without changing process affinity.
Most of the information in cpuid is reported by the kernel in cooked form either in /proc/cpuinfo or through subdirectories in
/sys/devices/system/cpu. Direct CPUID access through this device should only be used in exceptional cases.
The cpuid driver is not auto-loaded. On modular kernels you might need to use the following command to load it explicitly before use:
$ modprobe cpuid
There is no support for CPUID functions that require additional input registers.
Very old x86 CPUs don't support CPUID.
SEE ALSO
Intel Corporation, Intel 64 and IA-32 Architectures Software Developer's Manual Volume 2A: Instruction Set Reference, A-M, 3-180 CPUID ref-
erence.
Intel Corporation, Intel Processor Identification and the CPUID Instruction, Application note 485.
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2009-03-31 CPUID(4)