similar to: Hyperthreading ON causes OOPS on boot

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've to setup Asterisk on a Dell PowerEdge 1750 server. Its dual Xeon 3GHz with Hyperthreading. People on this list who have experience with this server please advise me how is the performance of Asterisk on this server, what flavour of linux is good on it etc. Is Hyperthreading going to be a problem or not. I once read somewhere that hyperthreading caused some voice quality problems in

My Dell 2800 Dual 64bit Proc. machine came in with hyperthreading enabled. (they call it virtual processor??) I have been intending for a month to disable it. Tonight, I rebooted, turned it off, and let the system come up. zaptel loaded and asterisk loaded, but both of my t1s were red. (it is a TE411P) /proc/interrupts looked OK, zttest gave OK numbers. I doublechecked all of the files in case

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

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

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

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, my video sharing website (politube.org) that I developed with rails, runs on lighttpd/fcgi (I know it is obsolete by now) and is severely under load and regularly blocks because the lighttpd process chews up 50% of RAM (1GB). So now I want to move the system to a new server with 8GB, 64bit , Quad core processor (intel i7 920) but I am not sure if hyperthreading will really do anything better.

Hi, Anyone know how to compile asterisk for a hyperthreaded processor? Thnx

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.

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

>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:

I'm using the same CD's that I've used to install CentOS on my other systems. After the first failure I had the installation verify the install media just in case. It passed. I've tried the default install (used for all previous installs) and the i586 option (after googling). They both fail in the same way. Here is a transcript of what is output to the screen: Running

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

Hi, I have two boxes with 2 * Xeon 3.0 Ghz I''ve enabled Hyperthreading in the BIOS. - One box is with Xen 3.0.1 I''ve enabled SMP + SMT in my kernel Xen0 config, and SMP + SMT works perfectly. I can see 4 cpus in my VCPU list for Domain0, and I see also 4 CPUs in the /proc/cpuinfo file. - One box is with Xen 3.0.2 I''ve enabled SMP in my kernel Xen0 config, and SMT has

Hello, We can't connect to our pptp server through our CentOS gateway with a XP client. The linux client is working but not the XP client. I know for a fact that the pptp server is not the problem because if I connect the XP machine directly to the Internet the pptp vpn is working. I know about the pptp-conntrack-nat patch, I compiled the 2.4.9 kernel, with patch-o-matic-ng-20060511.tar.bz2

Hi, with regards Intels L1TF vulnerabilities, it seems they are somewhat non-committal on whether turning off HyperThreading is required, suggesting people > Consult with your hypervisor vendor for more guidance. https://www.intel.com/content/www/us/en/architecture-and-technology/l1tf.html#faq-answers-10-0 What is the consensus in the Libvirt community about the risks (or not) of leaving

Hi iproute2, I have a network to reach which is 192.168.2.0/24. It is a branch of the company. I have currently added a route to that network via one gateway ( 192.168.0.254) in following way. ip route add 192.168.2.0/24 via 192.168.0.254 Now, We got another gateway which is 192.168.0.250. Now I want to add a route to the same network which is 192.168.2.0/24 via this gateway ( 192.168.0.250)

I''m trying to start a number of lvm-backend domUs on a Dell Poweredge 2850 (i''ve got nousb on the grub command line, and no usb in the kernel). Some domUs are created and started successfully. However, quite a few of my domUs don''t start properly. I get the correct Started Domain messages... but then the domain doesn''t "go anywhere", meaning

On 04/19/2017 12:18 PM, PJ Welsh wrote: > > On Wed, Apr 19, 2017 at 5:40 AM, Johnny Hughes <johnny at centos.org > <mailto: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