Is 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.
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'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 RelatedI've two internet based server ( xx.xx.xx.xx and yy.yy.yy.yy ) The Y server is running VNC server and is responsible for answering to VNC sessions. But I need to hide the IP of Y server so I want X server to be as VNC Proxy and redirect all VNC sessions to Y server.
I guess the best way is to use iptables but actually I can't get it working so
I certainly do not want to install Elementary OS, and just want a similar interface. I already installed docky, but Unity gets in the way. Is there a way I can disable that? Also, can I hide the docky application icon on Docky? Or is there a better way to do this?
View 6 Replies View RelatedI had a running server (mandrake10.1) that I wanted to transfer to a better version of linux, so, I decided to install in a new hard drive the new version and adding as slave the old hard drive that it contended data files. When I finish all the installation I start to try to find the old data files but I din't find, (/dev/hdb), the hd is mounted already, but when I look inside all files are hide.
View 2 Replies View RelatedThere is an option in NFS server like 'hide and nohide'. how to work with these options(Practically).
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1) how to know squid proxy mode working in which mode, like tranparent rever or web proxy etc
2) how to hide all local ip from outside world, let our isp proxy global show everywhere by which traffic go out
I just moved my bottom panel to the right side of the screen and set it to auto-hide., The panel hid it'self but will not un-hide when I move the mouse to the edge of the screen... I tried to re-boot, but the panel is still "stuck"Is there an easy way to fix this? Or will I have to manualy delete the panel and make a new one
View 10 Replies View RelatedInterpreting the output of /etc/proc/cpuinfo.
This is a Linux Box.
Here is the output and I need to know how many CPUs we have and how many cores per CPU.
JIt 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 RelatedI am attempting to Run Ubuntu 10.10 on a system with 128 CPU cores (64 dual core processors), but Ubuntu is only detecting 32 cores. I've looked and looked and cannot find any information on this topic; is there a core limitation in the kernel configuration that I missed? Currently I am using Ubuntu 10.10 Desktop, would I have more luck with 10.10 Server or another version?
View 9 Replies View RelatedAnybody 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.
My previous OS was openSUSE 11.4 KDE. In system monitor I used to see frequency scaling of both cores . Know thats not a case. I have Dell Latitude D420, with Core Duo U2500 @ 1.20Ghz, using Debian testing (Wheezy) 32bit, GNOME. Please help! There is no purpose to use a system which drains max. half capacity of a machine. hOPE, that is not a case . How do I know if both cores are working?
View 6 Replies View RelatedWhen I was using Virtual Box in Windows 7, I could choose how many CPU cores to assign to the guest OS. Now I'm using Linux, and when I installed Virtual Box, I couldn't find that option. System Monitor shows that when the VM is busy only one CPU core goes to 100% while the rest are near 0%. How can I make Virtual Box in Linux use multiple CPU cores?
View 2 Replies View RelatedI have a notebook with AMD Athlon 64 QL-62 2 cores CPU. Normally the temperature is 50-52 Celsius in idle but with Ubuntu 10.04 beta 2 idle temp is 60 Celsius. /proc/cpuinfo shows both cores on 1GHz which is good but still temp is higher than usual. I tried to find solution using Google but I didn't find anything.
View 1 Replies View RelatedI am using the standalone k10temp temperature sensor but it doesn't give the actual temperature of the cpu, just some "bogus" temp value that isn't very useful.Does anyone know how you can calculate the real temperature from this reading?
View 3 Replies View RelatedMany commands in Mathematica 8 (Integrate, Simplify, etc.) seem to only be using a single core on my system. Is there any way I can change the affinity so that it utilizes all cores for computations?
View 3 Replies View RelatedI'm using Ubuntu 10.04 x64, and I have an AMD Phenom 2 x4 940 CPU. First I have to underline that four cores worked perfectly in previous versions of Ubuntu as well as Windows.
When looking at system monitor it tells me that I have two CPUs/Cores, it should be four.
This is the output of CPU info:
Code:
processor: 0
vendor_id: AuthenticAMD
cpu family: 16
model: 4
[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 RelatedI'm planning on setting up a new Linux box expressly for distributed computing (BOINC, SETI@home, etc.). All things being equal, what's better- More clock cycles or more cores?
View 4 Replies View RelatedI have a four-cores machine (core1,core2, core3, core4 ). I want to test the communication or latency between two cores (for example, core1 and core2; core3 and core4). Does anyone know how to write a code to test it under linux operating system?
View 1 Replies View Relatedi have purchased sun server for my visualization project. Request you to help me finding the io for disk .I have put storage(disks) on different location (File Server) and on server (Application) i have configured 4 virtual machines.
How would i monitor the io for file server from the Application server where i have configured 4 virtual machine. one way to mount the file server share on application server and execute
dd if=/dev/zero of=/share/test.out bs=1024 count=1024 to check the read and write Is there any other way of doing this.
I have a web application(java 5, mysql server) installed on Tomcat on Red Hat 5.Part of the functionality is to allow the upload of files to a windows share. I have mounted the share using theAny file I create here from the terminal gets sions."-rwxrwxrwx"The problem is that when the application server creates the file it gets created with the following."-rw-r--r--"How can I get files created from the server to be "-rwxrwxrwx"
View 1 Replies View RelatedCan anyone tell me in performance tunning of apache-tomcat and jboss application server?when I deploy some application in apache-tomcat the performance is say 100 users per second and incase of jboss it is even worst (35-40 users per second)i want to improve my performance 1000 uesrs per second..
View 1 Replies View RelatedSo I recently built a gaming computer, which I typically use windows for. I'm mainly a linux user and I have separate computers for that. But, I wanted to try an experiment with linux on my gaming computer due to it having the best hardware I have.Anyways, I have an AMD athlon II x3, with the 4th core unlocked. Windows will boot up and use it just fine - it considers it a phenom II x4 b40. However, linux will not boot up as long as that 4th core is unlocked. grub is responsive but once it begins booting, it doesn't really do anything. its not just debian, its any linux distro.
i've never heard of linux having problems with core unlocking, and i have a pretty good motherboard (one of the top 5 socket am3 boards). i'm also very surprised to see windows somehow manages to accept this but linux doesn't.
I am testing version 11.2 (Released version) and have this problem (part of dmesg):
[Code]...
So Opensuse cannot lower the speed of the CPU-cores. I tried updating the BIOS without luck. powernow-K8 under Opensuse version 11.1 (dual-boot) works perfect.
I am running 64bit 10.10. For the last fortnight system has become very sluggish responding to input. Programs greyout and become completely unresponsive for long periods of time and cpu usage on one or both cores ramps up. As I type it is c.80% on both. System Monitor shows usage on the cores mirroring one another. top in terminal shows Xorg at 99%. I have attached a screenshot. I have rolled back and/or reloaded the Nvidia graphics drivers to no effect.
View 9 Replies View RelatedNewbie question here. I just realized that I can tell make to use multiple cores to compile by doing PHP Code:makewhich is just awesome on a quad core with hyperthreading (I just compiled 2.6.33-rc5 in under 5 minutes!) I know aliases are possible, though I've never had much need. What I would like to know now, is if it would be safe to alias make to mean PHP Code:so that by default I use 6 of the procesors when building or if there would be occasions that compiling on multiple processors would be a bad thing
View 10 Replies View RelatedWhenever I monitor my CPU's, it seems only the first is ever utilized, with the second always being at 0%.Does this mean it is not being used, or just not being reported as in use?Is there anything I could do to improve the situation if it is not being used as much as it could be?On Windows, I can assign processes to both cores, or either one. Is there a way to do something similar in Linux?
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