identifying the number of cores each processor is running.
I have checked /proc/cpuinfo but i dont find any core details inside it and I can find only no of processor and its speed.
I have 8 cores system, but I only want to use 4 cores of it. Are there any commands to show which cores are running tasks?
View 1 Replies View RelatedJIt was easy to check in Windows, but I just wanted to know if there's a way to check if Ubuntu is utilizing both cores of my processor (Pentium Core 2 Duo).
View 9 Replies View RelatedBasically system monitor and the "top" command show 2 cpu cores when I only have 1 (a 3 Ghz P4 on my work computer).
I'm not sure if the two are related but I frequently get 100% CPU usage when running a few programs together (Kile, Firefox, Chrome and okular for example) at which point even the movement of the mouse cursor slows down.
I have just bought new PC (Intel mother board "Intel DP43TF ATX" and Processor "Intel Core 2 Quad Q9550"). and I have installed centos 5.3 32 bit.
NOTE: All cores are enabled in BIOS.
When I issue below command, it shows only one core (not 4 cores): what could be reason!
# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
[Code].....
Anybody knows How can I get the number of cores of a machine?I know that I can use POPEN and get the stream of this:
Code:
grep -i 'processor' /proc/cpuinfo | wc -l
But, I think that a simple method to do this.
Only lately I notice that my CentOS 5.2
(Linux centos52-64-fuj 2.6.18-92.el5 #1 SMP Tue Jun 10 18:51:06 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux)
does not detect a second core according to /proc/cpuinfo
Quote:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
[Code]....
I have a HP laptop with an AMD Athlon X2 Dual Core QL-65 and an ATI Radeon card running Ubuntu 10.10 When I run a video file using Movie Player (or VLC) through the HDMI output to my TV the 'System Monitor' indicates that both processors are running at around 100% with the fan running continuously.
View 5 Replies View RelatedIs there any command in linux to figure out , given a process, which processor the process is running? I am interested in figuring out the CPU busy and CPU idle time of that processor.
View 2 Replies View RelatedI can't figure out why but my processor is running at 100% on all four cores, and the fan is running at max speed. All I did was double click an a.out file created by g++, and it is running at full speed now.
[IMG]file:///tmp/moz-screenshot.png[/IMG][IMG]file:///tmp/moz-screenshot-1.png[/IMG]
We've been experiencing sudden host server crashes minutes after starting a fourth virtual machine. Our setup looks like:
Dell Poweredge T300
1 x Intel Xeon X3323 Quad Core 2.5 ghz
16 GB Ram
CentOS 5.3 (64 bit)
Server is running a stripped down version of CentOS 5.3 (64-bit), running only the built-in Xen Virtualization Environment. There is no other services running on the server (not samba, httpd, sendmail, cups... nothing except Xen) We've created several virtual machines, and as long as we don't start a fourth virtual machine everything runs smoothly (impresive hardware).
Each virtual server is configured as:
PARAVIRTUALIZED
1 Virtual CPU
1 GB RAM
However, 5 minutes or so after starting a fourth virtual machine, the entire host server crashes and restarts itself. Are we limited by the number of cores on the host machine CPU (4 cores)? 1 for the host and 3 for virtual machines? We've read in forums about other Xen setups running up to 11 virtual machines on less powerful hardware? (a dual core server). Should we be using FULLY VIRTUALIZED virtual machines instead? Is the number of XEN virtual machines in fact limited by the number of cores? If so, how can someone run several virtual machines on a single core host?
By the way, we were replacing a previous Dell Server (Poweredge 2600 with 512 MB Ram and a single Xeon single core processor running Open Virtuozzo). We were able to run up to 16 virtual machines at the same time. Of course none of the machines endured hard work (testing environments, etc). But hey, my point is that we expected to get a much higher number of virtual machines on this new hardware.
How do we check as to how many links have been created that point to a particular file?
Let's say there is this file /work/contacts.dat
and we have, let's say, 10 soft links that have been created by different users in their home directories. Now how can I figure by looking at the file /work/contacts.dat that there are 10 (soft or hard)links pointing to this particular file so that I know that it is being used or refered to by those many users and before deleting it I can check with them.
I just read and learned about logical volume management today. I have a server running RHEL5.4, LVM2. I have 1 physical volume, with one volume group, and 3 logical volumes. I have no free extents, nor do I have any in my volume group (not sure if it's possible to have free in one and not the other anyway), and I am running out of space on one of my logical volumes. Doing a df -h shows 96% of 9.7GB used on /dev/mapper/MainVG-root, mounted at /. So here's the stupid question: how can I find out what directories/files are taking up what space within this logical volume? As I said I have 3 all together, and the other 2 are mapped to /var and a /var pgsql sub-directory. I figured I could get the sizes of the other directories under / and drill down accordingly, but I seem to be missing some basic rule because the commands I am using and the values I am getting don't add up.
For example, it seemed logical to me to do an ls -lsh on / to try and identify the largest directories. Each directory is listed as being ~4-8K in size. That doesn't make sense to me. So I decided to do a du -sh on each directory. Having done this on all of the / sub-directories and added up those values, there is not enough reported usage here to equal 8.9GB of used space (as df -h / reports).how they would find out how the 9.7GB here is being allocated? Preferably without scripts as I am not ready to add a layer of complexity to this yet without understanding some fundamentals.
how to get the port number of the "ajp13" service running on host master?
View 1 Replies View RelatedIs it possible to hide cpu cores from an application?
I am running RHEL 5.5 on a Sun 4450 with 24 cores. We use Sybase database. Licensing for Sybase is by core. I would like to restrict Sybase to using 8 of the 24 cores and allow other apps on the system to use the rest of the cores. I want to reserve 8 cores for Sybase use only and Sybase only has access to those 8 cores.
The situation is that I have an MPI-parallel fortran program. I run it and it's distributed on N processors, and each of these processes must call an external program.
This external program is also an MPI program, however I want to run it in serial, on the processor that is calling it, as if it were part of the fortran program. The fortran program waits until the external program has completed, and then continues.
The problem is that this external program seems to run on any processor, and not necessarily the (now idle) processor that called it.
how I can call the program and ensure it runs only on this processor?
Extra information that might be helpful:
If I simply run the external program from the command line (ie, type "/path/myprogram.ex <enter>"), it runs fine. If I run it within the fortran program by calling it via
CALL SYSTEM("/path/myprogram.ex")
it doesn't run at all (doesn't even start) and everything crashes. I don't know why this is.
If I call it using mpiexec:
CALL SYSTEM("mpiexec -n 1 /path/myprogram.ex")
then it does work, but I get the problem that it can go on any node.
I'm using Cpanel on my server, before upgrade to new kernel, i could see 8 cores on my i7 server, now i only see 4 cores, is there anything that i need to do to have another time the 8 cores?
View 2 Replies View RelatedRecently the power went when i was using ubuntu and my system shut down since the ups took too long to supply power. So i started my system and choose to boot linux, but it said display drivers not detected, linux running in low graphic mode, and it said 1. run windows in low graphic mode for now...2. reset to previous graphic mode- i chose this and it restarted, since then the ubuntu loading page appears and then my monitor goes blank although my processor is running.....why is this happening?.....i have a ati 5770 graphic card through which it should display.
View 3 Replies View RelatedRunning Slow and Pegging Processor When Using Mozilla and Kdenlive
View 1 Replies View RelatedUnix command that allows to know which process is running on processor core?
View 2 Replies View Relatedi have installed ubuntu in my laptop.since i have AMD processor fedora doesnt support AMD processor..the recent version fedora 12 supprots AMD processor.i am doing my final project in ns2 hence it should support tht too!!! Which is the best choice to override ubuntu grub fedora 12 or redhat linux.
View 3 Replies View RelatedI would like to do the following: Create a banner for any user logging in through ssh which warns him/her about the number of processors being used already by other users (or conversely the number of free processors). For example, if a user logged in he would then see a message like: Warning! 7 out of 8 processors are in use.I already figured out how to do a banner and with ps -e -o pcpu I can get all processes' %CPU usage. I think I would like to count the number of processes which have more than 90% CPU usage and output this number ("7" in the example) in the banner
View 7 Replies View RelatedIS there any command to see number of threads are running in a process .I have check ps -eLf but it wont show display for all the threads
View 1 Replies View RelatedWhen I fork multiple processes, is there some command or c function to see the cpu number on which the processes are running?
View 3 Replies View RelatedI would like to run my own server, and I'm thinking of buying a dedicated machine to run it on. I checked out the dell website for a cheap machine to run it on (I don't need high performance - just a personal file server running a few hard drives, and a web/mail server). I noticed that they have some cheap models in their server line that are as cheap as a desktop. Compare:
[URL]
The main difference I see between the desktops and the servers is the use of the Core or Xeon processor, and also, the servers tend to have lower RAM.if I am looking for value, should I opt for a low end desktop or a low end server to run a personal server? Also, what advantage does the Xeon processors and Dell server line have over the desktop models that make it better for running a server?
I'm trying to get the end result to have the same format as this as well:
1 bin
2 daemon
67 erozner
[code]....
Where the numbers are the number of processes being run by the user (the name right next to it).if I input the command egrep myFile into the terminal, it should look for every line with the letter x in myFile, right?
We planned to buy new server for our company, which processor is best for, shared hosting , and nearly 300 clients are going to access this server, all live video streams websites are going to hosted in this server. so which processor is the best option to go,i found these are the best in this which processor give best performance forshared hosting.1. Dual Xeon E5405 2.0Ghz2. Dual Xeon E5130 2.0Ghz3. Core i7 2.66-2.93Ghz
View 3 Replies View RelatedI have Hp Proliant 370 G machine, when i installed windows server 2003, it does not making any fan noise. and I have installed RHEL 5, its continous making fan noise start from booting to till power off the system. my question is why it is noising and how to set it at rest.
View 2 Replies View RelatedMy older motherboard is a MSI K7D Master which had two AMD Athlon 1800 MP's installed. My new motherboard is a HDAMA Rev G which has two AMD Opteron Socket 940 CPUs 2.4Ghz installed. When both chips are installed, Fedora will freeze when putting the system under load (i.e when transferring data). This has now happened to both the motherboards, once I remove the second CPU the system will run perfectly.
I think it may be a kernal problem as this also happens on other linux distributions. I have posted here for several reasons, a) to allow any other person searching for a fix a solution (all be it not a good solution), b) to request help on fixing this issue or request to who and where I should report this bug, c) to see if any other users are having the same issues. I should add that I once had the MSI mobo used in conjuntion with Windows Home Server which never had a problem when both chips were installed.
I am downloading the 64-bit image of Ubuntu 9.10 right now, but I notice the filename has "amd64" in it. Will it only work on 64-bit AMD processors? I want to install it onto an enterprise-class server with a 64-bit Intel Xeon processor.
View 4 Replies View Related