similar to: How does KVM handle multiple cores?

Hi All, What are guest cores in KVM? Are they fake, like everything else in the guest? Just another process running on the host emulating a core? Or are the guest cores actually connected directly to the physical cores on my motherboard? Many thanks, -T

CentOS-6.2 What is the maximum number of cpus can I configure for a single vm guest running on a host with this hardware? # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 1 Core(s) per socket: 4 CPU socket(s): 1 NUMA node(s): 1 Vendor ID:

Hi All, I am running Virtual box on a CentOS 5.5 x64 bit host. The guest is 23 bit Windows Server 2008 SP2 (not R2). Virtual Box bug 7606 is causing a customer of mine serious financial harm. http://www.virtualbox.org/ticket/7607#comment:3 I have tried in vain month or month over month to get Oracle to sell me a tech support contract, so that we can get some priority on this issue.

Hi, I have been trying to get Hyperthreading to work in a Windows HVM on Xen 4.1.2 as described in ''xmexample.hvm''. I think I have set it up correctly, but I can''t seem to get it to work. There is not much documentation on it and most topics are from years ago. I''m curious to know to whether this functionality is still supposed to work. I''m aware that

I am running irqbalance with default configuration on an Atom 330 machine. This CPU has 2 physical cores + 2 SMT (aka Hyperthreading) cores. As shown below the interrupt for the eth0 device is always on CPUs 0 and 1, with CPUs 2 and 3 left idle. But why? Maybe irqbalance prefers physical cores? My understanding, though, is that the even-numbered CPUs are the physical cores, with the

I have found a site that list the following (no date in the post, so it may be old): "since all transcoding and calls still go through one core in asterisk, it doesn't make sense to buy a multi-core or hyperthreaded system that will only slow you down" Does that still applies in asterisk 1.2.14/1.4.x ? Or do we have to tweak source code to balance loads (transcoding,etc) between

Hi, I can''t get rid of an annoying domU machines hanging issue with Hyperthreading enabled in my BIOS. Hardware config: IBM x325 series 2 * CPUs Intel Xeon 3.06 Ghz Xen version: 3.0.0 Kernel version: 2.6.12.6 Linux distrib: Debian Sarge 3.1 r1 I run 1 domU machine on my dom0, here is my Xen config: . xen0: /etc/xen/xend-config.sxp : (dom0-num-cpus 0) .

I'm setting up an Ubuntu?virtual machine?that will use 4-Intel Xeon CPU x5650.? I'd like to compile R with a BLAS but the question is whcih one.? Seems like the only free ones are GotoBLAS which I'm not sure is being maintained for newer CPUs and OpenBLAS for Loongson CPUs.? I saw a favorable report on OpenBLAS

> -------- Original message -------- > Subject: Re: [libvirt-users] Can I configure cores instead of CPU's > From: Todd And Margo Chester <toddandmargo at gmail.com> > To: "libvirt-users at redhat.com" <libvirt-users at redhat.com> > CC: > > > Hi All, > > Scientific Linux 6.1 x64 > qemu-kvm-0.12.1.2-2.160.el6_1.2.x86_64 > > My XP-Pro

I've just got bunch of RHEL4 erratas (looks like U2 is out). Looking at the kernel errata (kernel-2.6.9-22.EL), one of the things in list of new features is "Intel dual core support". What does this exactly means? Does it mean if I have dual core pentium processor and use older kernel that it will use only one core, and I need newer kernel to use both cores? Or is it only

Hi Jeff, I have a single-CPU system with P4 HTT-enabled processor (7.1-RELEASE-p3), kernel compiled with SCHED_ULE. Copyright (c) 1992-2009 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 7.1-RELEASE-p3 #0:

Hello, I read an interesting article on 2cpu.com that talks about the performance differences between a P4 processor with Hyperthreading(HT) enabled and disabled. http://www.2cpu.com/articles/ht_explored/index.html The bottom line of the article is that processor intensive applications greatly benefit from HT being enabled, but memory intensive applications can actually see a slight decrease in

I've installed CentOS 6.3 on a quad-four box. The model only indicated dual core but CentOS is telling me there are four. This is the first multi-core Linux installation I've had. What is the best way to utilize the multi-core CPUs? I'd like to distribute the load but I'm unsure how to do that. mw -- -- "Lose not thy airspeed, lest the ground rises up and smites

Hello, Is it possible to alter how XCP enumerates multi-core cpu’s such that a Vcpu represents a “socket”, rather than a “core”? A server with dual quad core processors, no HT, presents each of the 8 cores as a Vcpu to the guest. Windows Server 2008 R2 see’s each Vcpu as a unique “socket” and we are therefore coming up against licensing issues with Windows and more importantly SQL Server 2008

Hi Asterisk Users, I would like to handle about 250 simultaneous (calls & agents only) calls with PRI or a SIP trunk with the following configuration Dell R710 Dual Intel? Xeon? X5650, 2.66Ghz, 12M Cache,Turbo, HT, 1333MHz or Single Intel? Xeon? X5650, 2.66Ghz, 12M Cache,Turbo, HT, 1333MHz Memory 12GB, 1333MHz RAID 1 - 1 Tb X 2 Is that possible?? Kind Regards Juan. Linux User #441131

can someone overthere help? the server specs are as follows HP DL380G4 Dual Intel Xeon 3.2GHz processor with 4GB RAM, running fedora core 3 asterisk-1.2.5 ss7-0.8.3d. using sip as advised to receive calls from another gateway in US. using g729 in transcoding way. however, I noticed the call hit the 51 active calls which is 102channels, I run "top" to check the system resources usage

Hi, Please let me know in case I am posting my question to the wrong forum. I apologize if that is the case! Here is my question: We run CentOS 6.3 on a server with dual Xeon CPU's. Our "dual blade" server uses this motherboard: http://www.supermicro.com/products/motherboard/Xeon/C600/X9DRT-HF.cfm We have two of these CPUs installed and working: Intel(R) Xeon(R) CPU E5-2620 0 @

A question that someone asked me, cut and pasted from another board: >>I've got 8 cores on my machine and while encoding only one processor is used, and maxed out. Is there any way to distribute the load across multi-cores?<< I have no idea what the answer to this is. The question was about flac on OS X Scott

Dear all, I'm sitting here just in front of my new PC@work and wonder about the following question: * How can I adress multiple CPUs (cores) out of R to speed up the simulations I run? * What are the prerequisites to do so? Maybe anyone could give me a hint where to start reading? Regards, Thomas P.S.: I searched the R-archive to find an answer but did find none.