The cpu tag has no wiki summary.
2
votes
1answer
31 views
System IDLE Time > System Uptime?
I was testing out the linux api while working on something but got stuck on the following output.
[Abhii@localhost net]$ cat /proc/uptime
39135.53 149657.73
As per specs the first number should be ...
3
votes
2answers
104 views
Hyperthreading not detected by Linux (now solved)
Problem solved!
After speaking to Dell's support they realized that I had to remove the option acpi=off from my /boot/grub/menu.1st config file. Apparently ACPI support is essential for ...
2
votes
2answers
81 views
Find the PID of top CPU/MEM usage, save to a shell variable
Is there any way to get the PID of the top CPU/MEM usage, I need to use that in a script, top command doesn't seem to work for it.
2
votes
0answers
54 views
cpufreqd does not control temperature plus shows no output
Since my laptop (an Acer Aspire 5750G running a Gentoo Linux with a not-quite-up-to-date kernel 2.6.39-r3 (a weird wLan hardware makes the update difficult)) tends to run rather hot I am trying to ...
2
votes
2answers
62 views
On Ubuntu Linux, is it normal for mandb to run continuously (apparently in the background)?
I have access to a Ubuntu Linux node at my institution. The nodes are shared among the group, but typically I am the only person who uses this particular node.
I am running a calculation in parallel ...
1
vote
2answers
81 views
Putting Linux processes on certain CPU cores [closed]
Possible Duplicate:
How can I set the processor affinity of a process on Linux?
Computer CPUs have many cores insde them nowadays.
I have always wondered if there is a way to, when I start ...
1
vote
2answers
87 views
Difference between “machine hardware”, “processor type” and “hardware platform”
My Linux machine reports "uname -a" outputs as below:
[root@tom i386]# uname -a
Linux tom 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:34:33 EDT 2009 i686 i686 i386 GNU/Linux
[root@tom i386]#
As per man ...
1
vote
4answers
292 views
How to get CPU info on a vmware guest
This is a server that is running on Vmware ESXi:
SERVER:/root # cat /etc/SuSE\-release
SUSE Linux Enterprise Server 11 (x86_64)
VERSION = 11
PATCHLEVEL = 2 ...
1
vote
3answers
104 views
CPU or RAM better in old machine?
I'm planning to use one of two old computers as a low-volume backup server. The machine will be online and files will be backed up over ssh/rsync. I will do a minimal install of Ubuntu or Debian ...
14
votes
2answers
961 views
What do the flags in /proc/cpuinfo mean?
How can I tell whether my processor has a particular feature? (64-bit instruction set, hardware-assisted virtualization, cryptographic accelerators, etc.) I know that the file /proc/cpuinfo contains ...
3
votes
3answers
116 views
Invoking CPU Stress
Looking for an app or tool to invoke CPU usage on my virtual Linux and Unix guests.
I found the app "stress" from a post on Stackoverflow, but curious what the Unix/Linux crowd would recommend.
3
votes
1answer
132 views
Do I have PCLMUL instruction set support?
Here are the flags from /proc/cpuinfo:
fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc ...
2
votes
1answer
149 views
CPU and core usage stats
I'm running some programs on a server and I would like to know how much % cpu I'm taking up and how many cores are being utilised by my process.
To clarify, the server has 16 CPUs, all quad-core. I ...
13
votes
2answers
288 views
Is it possible to limit how much CPU power a process can take?
I'm wondering, is there way to tell a process how much processor power it can take?
The problem is I'm converting video with Arista (video converter) and I'm annoyed by the fan running like crazy, ...
2
votes
1answer
96 views
Compare usage of memory by window managers
I'd like to test a few window managers to see which of them takes less memory and CPU in certain time period (so is better choice for older computers). I'd like to make the tests myself (not to read a ...
