10-24-2014
Hyperthreaded virtual cores, different C-States?
turbostat reports C-states of all CPU cores, and includes entries for each hyper-threaded core as well. Often enough the two logical cores on a single physical core will list different C state percentages. Does that make any sense?
Is this reporting the c-states of the few duplicated parts that support hyperthreading, vs the actual computing units in the single physical core?
This isn't a turbostat specific question, that just happens to be the tool I used to display that info. Its more a question about hyperthreading in general.
Edit: CPU is an Intel 5820K hexacore if that matters. Its my first hyperthreaded CPU.
Last edited by agentrnge; 10-24-2014 at 11:21 AM..
8 More Discussions You Might Find Interesting
1. IP Networking
Ok, I've read the manpages on netstat and it gives a good description of the state values such as CLOSE_WAIT, ESTABLISHED, SYN_RECEIVED, etc..
Can someone give me real world situations where you would get these states. LIke for example if I got SYN_RECEIVED what possible situations would be the... (1 Reply)
Discussion started by: eloquent99
1 Replies
2. Solaris
Hi Everybody,
As I am new to Sun Clusters, Please help me what is "online but not monitored" state of resources and "online - service is online" in status message. Thank you. (1 Reply)
Discussion started by: mayahari
1 Replies
3. UNIX for Dummies Questions & Answers
Not really a newbie, but I have a strange problem and I'm not sure how to further troubleshoot it.
I have to log out of a virtual terminal by typing exit, then exit again as in:
woodnt@toshiba-laptop ~ $ exit
logout
woodnt@toshiba-laptop ~ $ exit
logout
I DON'T have to do this when I'm... (1 Reply)
Discussion started by: Narnie
1 Replies
4. UNIX for Advanced & Expert Users
I am trying to write my own Unix compliant (SUSv4) OS - Just a hobby OS, nothing serious. While going through the standard, I couldn't find any explicit information on process states. What I could find was (excluding the real-time considerations)-
From this it can be inferred that the... (2 Replies)
Discussion started by: tinkerbeast
2 Replies
5. Solaris
Trying to set or modify the randomly set hostID of a Solaris 10 virtual/guest machine that I installed on a Windows-XP host machine (using Virtual Box 4.1.12).
I was able to set/modify the hostname of the Solaris 10 virtual/guest machine during installation as well as via the Virtual Box... (4 Replies)
Discussion started by: Matt_VB
4 Replies
6. Shell Programming and Scripting
netstat | awk '/server/ {for(i=1;i<2;i++) {getline;print}'
Output:
ESTABLISHED
ESTABLISHED
ESTABLISHED
ESTABLISHED
ESTABLISHED
TIME_WAIT
TIME_WAIT
From the above command I'm getting all the states. I want to count the states and write to a file, like
"Count of ESTABLISHED... (6 Replies)
Discussion started by: Roozo
6 Replies
7. Shell Programming and Scripting
I am using HP-UX,KSH
$ jobs -l
+ 19377 Running nohup ksh cat_Duplicate_Records_Removal.ksh </dev/null >/dev/null 2>&1 &
$ ps -p 19377 -fl
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME COMD
401 S catmgr 19377 19491 ... (1 Reply)
Discussion started by: TomG
1 Replies
8. UNIX for Beginners Questions & Answers
Hi All,
Is there any way I can prioritize my VMs when there is resource crunch in host machine so that some VMs will be allocated more vcpu, more memory than other VMs in kvm/qemu hypervisor based virtual machines?
Lets say in my cloud environment my Ubuntu 16 compute hosts are running some... (0 Replies)
Discussion started by: SanjayK
0 Replies
CORE(5) BSD File Formats Manual CORE(5)
NAME
core -- memory image file format
SYNOPSIS
#include <sys/param.h>
DESCRIPTION
A small number of signals which cause abnormal termination of a process also cause a record of the process's in-core state to be written to
disk for later examination by one of the available debuggers. (See sigaction(2).) This memory image is written to a file named by default
core.pid, where pid is the process ID of the process, in the /cores directory, provided the terminated process had write permission in the
directory, and the directory existed.
The maximum size of a core file is limited by setrlimit(2). Files which would be larger than the limit are not created.
The core file consists of the Mach-O(5) header as described in the <mach-o/loader.h> file. The remainder of the core file consists of vari-
ous sections described in the Mach-O(5) header.
NOTE
Core dumps are disabled by default under Darwin/Mac OS X. To re-enable core dumps, a privileged user must do one of the following
* Edit /etc/launchd.conf or $HOME/.launchd.conf and add a line specifying the limit limit core unlimited
* A privileged user can also enable cores with launchctl limit core unlimited
* A privileged user can also enable core files by using ulimit(1) or limit(1) depending upon the shell.
SEE ALSO
gdb(1), setrlimit(2), sigaction(2), Mach-O(5), launchd.conf(5), launchd.plist(5), sysctl(8)
HISTORY
A core file format appeared in Version 6 AT&T UNIX.
BSD
June 26, 2008 BSD