0
votes
1answer
13 views

How to check core dump enabledness status in bash?

$ ulimit unlimited $ sleep 2 && killall -SEGV cat & [1] 11358 $ cat Segmentation fault $ ulimit -c unlimited $ ulimit unlimited $ sleep 2 && killall -SEGV cat & [1] 11462 $ cat ...
1
vote
1answer
103 views

Core dump generation on Linux

Something very perplexing is going on, with respect to my box. Below are my settings in /etc/sysctl.conf: kernel.core_pattern = core kernel.core_uses_pid = 1 In /etc/profile, I have this: ulimit ...
1
vote
1answer
560 views

Python doesn't dump core files

I have a problem where a Python process is hitting a segmentation fault but not producing a core file. The following is a toy example that does not produce a core file on the following distros: ...
1
vote
1answer
218 views

Linux CPU energy saving hacks

I have a quad core¬†CPU (Phenom II 945), because sometimes I need performance, but most of the time, 4×800 MHz (the minimal frequency) is still overkill for most usages. So, three questions ...
1
vote
1answer
234 views

Are there any GNU/Linux distributions which use a stable core and the latest and greatest software? [closed]

With "stable core" I mean the kernel, grub, init system, x server, audio server, et cetera. Basically everything that is essential for the OS to function. Some distributions that I have looked into: ...
5
votes
2answers
531 views

Which logical CPU (core) belongs to which socket?

I need to test performance of a multithreaded program on 1 CPU, but I have a dual CPU machine. I need to set affinity to those logical CPU's, that share their socket, oterwise they strongly benefit ...
1
vote
1answer
460 views

How to make core dumping in Linux for every process?

How make Linux core dumping for every process not only for deaemons?
0
votes
2answers
353 views

How to know the program that's dumping the core?

I am seeing cores dumped in a particular directory continuously. I am sure there must a script that's continuously starting a process which is core-dumping and dying. But, how can I find which process ...
4
votes
3answers
6k views

On Linux, how to tell how many cores of the machine are active?

On Linux, how to tell how many cores of the machine are active? I assume a test for this would work for Android too. I need to know if more than one core is ever active. Was wondering to test this by ...
2
votes
2answers
3k views

Multiple CPU cores in Virtual Box

When 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 ...
26
votes
6answers
19k views

How many cores I am using on a Linux Server?

I am just wondering how I can find out in bash how many CPU cores a user is now using on a Linux Server? I am submitting a fair amount of background jobs to the server, so I'd like to write a bash ...