similar to: kvm presenting wrong CPU Topology for cache

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 we observed that below errors occur on AMD platform since 25de7691a0e27c29c8d783a22373cc265571f5e9 root at lkp-opteron1 /opt/rootfs/llvm_project/src/build# cmake -DCMAKE_BUILD_TYPE=release -DLLVM_ENABLE_PROJECTS=clang -G "Unix Makefiles" ../llvm -DCMAKE_INSTALL_PREFIX=/opt/cross/ -- clang project is enabled -- clang-tools-extra project is disabled -- compiler-rt project is disabled

LKP framework can guarantee that all the software environment are same on AMD and INTEL platform. INTEL platform always work well, after revert this patch, AMD works well. we tried below commit on AMD. 1) 25de7691a0e27c29c8d783a22373cc265571f5e9: bad 2) a82235843b102202766115e10003c9465a8b83ae: good the error logs(build/CMakeFiles/CMakeError.log) has no difference b/w 1) and 2) on AMD platform

Hello, I have cluster with AMD EPYC 7351 cpu. Two CPUs per node. I have performance 8-NUMA configuration: This is from hypervizor: [root@hde10 ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 2 NUMA

Hello again, when the iozone writes slow. This is how slabtop looks like: 62476752 62476728 0% 0.10K 1601968 39 6407872K buffer_head 1000678 999168 0% 0.56K 142954 7 571816K radix_tree_node 132184 125911 0% 0.03K 1066 124 4264K kmalloc-32 118496 118224 0% 0.12K 3703 32 14812K kmalloc-node 73206 56467 0% 0.19K 3486 21

The first problem is as below: One issue is the files copied to the device but it can't be list on node2, using ls -al the mounted directory. But using debug.ocfs2 on node2, it is ok to list the files copied. After remount of the device on node2, the file can be list. The second is that: Node1 is in the ocfs2 cluster, but using debug.ocfs2, and mounted.ocfs2 -f command, can not list the node1

The first problem is as below: One issue is the files copied to the device but it can't be list on node2, using ls -al the mounted directory. But using debug.ocfs2 on node2, it is ok to list the files copied. After remount of the device on node2, the file can be list. The second is that: Node1 is in the ocfs2 cluster, but using debug.ocfs2, and mounted.ocfs2 -f command, can not list the node1

Hello everybody, First a big thanks for tinc-vpn I am still using it next to wireguard and openvpn. I am having a setup where the tinc debian appliance is at 100% cpu load doing about 7.5MB/s. Compression = 9 PMTU = 1400 PMTUDiscovery = yes Cipher = aes-128-cbc How can I pick a cipher that is the fasted for my CPU and don't create a CPU bottleneck at 100%. Kind regards, Jelle de Jong

Package: xen Version: 4.0.1-2 Severity: normal /proc/uptime shows idle bigger than uptime: dom0: % cat /proc/uptime 518389.91 944378.70 % one domU: % cat /proc/uptime 417536.22 764826.15 % another domU: % cat /proc/uptime 426960.17 795800.89 % This is normal on multicore / ht cpu, but this is old amd: % lscpu Architecture: i686 CPU(s): 1 Thread(s) per core: 1

I've a HP 8000 Elite SFF machine with Intel Core 2 Duo Quad and 16 GB RAM. I wanted to create a LAB environment to try new things (like CentOS 7). I installed CentOS 6.10 64-bit with no problems and everything is running fine. I then went to Server World and followed the instructions to install Desktop and Virtualization. The install went fine but I had errors when I attempted to build

Thanks to David and Jorge - both of your helpful suggestions got me to the desired endpoint. In case anyone else has this question: I boxplotted my y variable data, but did the "cut" operation on the x variable in order to conserve the order of the y data. I see another suggestion coming in from another user that basically says this. So, my working line of code was: boxplot(count$RPKM

Hello, ok, I found that cpu pinning was wrong, so I corrected it to be 1:1. The issue with iozone remains the same. The spec is running, however, it runs slower than 1-NUMA case. The corrected XML looks like follows: <cpu mode='host-passthrough'><topology sockets='8' cores='4' threads='1'/><numa><cell cpus='0-3'

Hello everyone I want to know how can I use libvirt to detect what cpu features a virtual machine will see. I guess I could do it in following way: 1. if cpu mode is 'custom', use 'virsh cpu-baseline --features' on the cpu model to get model features. 2. if cpu mode is 'host-passthrough' or 'host-model', do a 'virsh capabilities' to list cpu features of

On Mon, Sep 14, 2020 at 8:42 AM Yedidyah Bar David <didi@redhat.com> wrote: > > On Mon, Sep 14, 2020 at 12:28 AM wodel youchi <wodel.youchi@gmail.com> wrote: > > > > Hi, > > > > Thanks for the help, I think I found the solution using this link : https://www.berrange.com/posts/2018/06/29/cpu-model-configuration-for-qemu-kvm-on-x86-hosts/ > > > >

On 12/06/2016 06:06 AM, Blair Bethwaite wrote: > Hi Roberto, Hi Blair > What is the cpu and memory configuration of your guest? I've set to copy host configuration (16 cores) and memory is set to 24GB, host has 64GB. Guest is Windows 2012 64bits version Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 16

Hi There, I've moved some Windows2012 with MSSQL VMs from an hold ESXi 5.5 machine to a more recent and powerful machine running Fedora 24 x86_64 and related libvirt + KVM virtualization. I've moved the VMs filesystem to LVM slices and installed the VirtIO drivers in to all Windows VMs. I've also set both Disk and Network interface to work using VirtIO. So far so good everything works

Hello everybody, Thank you Fufu Fang for your quick reply: With tinc version 1.0.35 and the bellow options at 100% CPu load i get about 10 MB/s... PMTU = 1400 PMTUDiscovery = yes #Cipher = none Cipher = chacha20-poly1305 Digest = blake2b512 Tried Cipher = none as well and also got 10MB/s with 100% CPU on one thread the other three available threads are idle. With inc_1.1~pre17-1.1_amd64.deb

Hello R users, I have a set of data frames for which I am tallying row numbers, as shown below. > nrow(mC_Explant) [1] 14480 > nrow(mC_Callus) [1] 23320 > nrow(mC_RegenPlant) [1] 8108 etc. I want to create a new data frame which has the variable names as column headings, and then a single row with the nrow tallies. My first step was this: dfIntron <- c(nrow(mC_Explant),

Am 29.08.2018 um 23:46 schrieb Stephen John Smoogen <smooge at gmail.com>: > > On Wed, 29 Aug 2018 at 17:41, Leon Fauster via CentOS <centos at centos.org> wrote: >> Since the update from kernel-2.6.32-754.2.1.el6.x86_64 >> to kernel-2.6.32-754.3.5.el6.x86_64 I can not boot my >> KVM guests anymore!? The workstation panics immediately! >> >> I