similar to: Re: System hangs while creating DomU on P4 [SOLVED]

>but if I disable hyperthreading (noht on the kernel line in lilo/grub) Could the same result could be obtained if hyperthreading is disabled from the BIOS ? Supermicro Motherboards (most Phoneix based) have this option Also, would we see same pops and clicks in a dual CPU box (Zeon) then ? SW Message: 1 Date: Wed, 07 Jan 2004 14:32:16 -0500 From: Jeremy McNamara <jj@nufone.net> To:

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

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 have three different live-CD distributions that give me different numbers for the cpu count on this box (Dell P4 2.4GHz). -the Knoppix 3.3 (11-19-03) says 1 processor (no error); -the PHLAK 0.2 distribution say 1 processor (and 1 missing) -the Local Area Security distro says two processors (identicle P4s). Might there be somthing new in 2.0.8 that accounts for this difference. Is there a

That's the problem we had with Asterisk and HT on a 2.4 Kernel: whenever Asterisk was staying in the RTP stream, and HT was enabled (on a Dell Dual Xeon system), we had choppy audio. After disabling HT, everything was fine again. Nothing measurable, indeed, but you could definitely hear it. So there *must* be something. -Manuel -----Messaggio originale----- Da: Peter Corlett

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

Just gave 3.0 a spin. Had been running 2.0.7 for the past 3 months or so without problems (aside from intermittent failure during live migration). Anyway, 3.0 seems to have an issue with my machine. It starts up the 4 domains that I''ve got defined (was running 6 user domains with 2.0.7, but two of those were running 2.4 kernels which I can''t seem to build with Xen 3.0 yet, and

Dear R community, Package bit version 1.1-3 and ff version 2.1.2 is available on CRAN and should be useful to handle large datasets. It adds convenient utilities for managing ff objects and files (see ?ffsave) and removes some performance bottlenecks. In case you experience unexpected performance problems with ff, here is a couple of recommendations based on FAQs: 1) Compare the size of data

Dear R community, Package bit version 1.1-3 and ff version 2.1.2 is available on CRAN and should be useful to handle large datasets. It adds convenient utilities for managing ff objects and files (see ?ffsave) and removes some performance bottlenecks. In case you experience unexpected performance problems with ff, here is a couple of recommendations based on FAQs: 1) Compare the size of data

On Wed, Apr 19, 2017 at 5:40 AM, Johnny Hughes <johnny at centos.org> wrote: > On 04/18/2017 12:39 PM, PJ Welsh wrote: > > Here is something interesting... I went through the BIOS options and > > found that one R710 that *is* functioning only differed in that "Logical > > Processor"/Hyperthreading was *enabled* while the one that is *not* > > functioning

Sorry for being a bit of a newbie here but I find the docs or README for downloading the G.729 codec from Digium are not as detailed as I would like or just don't really break down the different versions to a point that I am clear on which one to grab. The choices for 32bit are: drwxr-xr-x 3 0 0 4096 Dec 05 00:21 athlon-xp drwxr-xr-x 3 0 0 4096 Dec

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, I''m trying to diagnose a reasonably large performance drop between two ostensibly similar servers; one running CentOS 5.5 on bare metal, the other running Fedora 14 as a Xen DomU under CentOS 5.5 (Xen 3.1.2-194.26.1.el5) I have a pair of older Dell PowerEdge 1750 servers, each with 4GB ram and 2x 2.4GHz Xeon CPU''s with

-----Original Message----- From: Gregory Wiktor - ADCom Corp. Sent: Monday, May 16, 2005 5:40 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: RE: [Asterisk-Users] Static on TDM Zaptel FXO Hello, Yes in the bios I set unused irq's. Zttest is sporadic. This is a non HT cpu, on a standard ide drive. It is basically just a p4-2.4 with a single ide, onboard

Hi Guys Im trying to complile Asterisk on my new dual Xeon 3.0ghz EM64T machine. Im running Debian 3.1, and have installed the 2.6.8-11-em64t-p4-smp kernel (and headers). The system is working fine and is detecting both CPU's (4 actually, with hyperthreading). But when I try to compile Zaptel, Im getting this error: /lib/modules/2.6.8-11-em64t-p4-smp? /build make -C

Greetings all, I am looking for a solution to use IPMI (BMC) in with LibVirt (Virt-Manager). Actually there is a Customer behind this request as well. Trying to be short: We are looking for a Solution in OpenStack Environment. Customer wants to have the entire environment running in Virt-Manager (probably for a P.O.C or tests purposes). So here is what he is trying to do: http://red.ht/1HfNn9r

Hello Does anyone know of any possible concerns in moving a "production" CentOS 4 install from one machine to another where the "only" difference is that the processor changes from a 1.8 Intel P4 "without" Hyper-Threading to a 3.0 Intel P4 "with" Hyper-Threading ? I am guessing not, yet I "have to" ask. Regards, - rh

Hi, All: Does the guest OS need to detect hyperthreading? One would think that the hypervisor decides what to schedule on what CPU, and the job of the guest is not to be too smart for its own good. So, my first reaction was to comment detect_ht() altogether. Fedora Core 5 has the code in detect_ht(), though I have no idea what the results of this are on HT CPUs, if they match the reality.

Hi, I'm currently thinking of putting more functionalities to Linux server box. Major is Asterisk, but would also like to add video surveillance, home automation and limited (for only domestic up to 4 users) web, file and mailserver apps. I know there are problems running Asterisk with other such apps on same machine - but wonder if I can take advantage of dual processor machine in this

Are they any issues still with hyperthreading processors, I've read and been told by a few people to make sure its disabled in bios if I want to use * on a hyperthreading machine. Kind Regards, Chris Bond

Hi, I did found the problem, a combination of 2 factor. 1- I taught that I did install the latest syslinux, but in fact it was the 3.36 version. 2- Thank to kevin Connelly, he point me to a problem he got with mkdosfs command. The default FAT16 do not work, but the FAT12 do. By adding -F12 to the mkdosfs command fix the problem. The default F16 do seem to work for <8M floppy image. Thank you