search for: vcpus

...dev/nfs'' nfs_server = ''10.5.144.29'' nfs_root = ''/myfs1/foo'' extra = "4" c1node7:~/selvi# xm create xenm.cfg Using config file "xenm.cfg". Started domain Dom2N7mig c1node7:~/selvi# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 123 1 r----- 952.2 Dom2N7mig 1033 31 1 ------ 2.1 c1node7:~/selvi# xm list Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 123 1 r----...

Hello Everyone, I am hoping I can get some help with how vCPUs work with weights and caps 1. If I have a domU with 2 vCPUs and a weight of 256, does the weight double (512) or is this 256 time slice across both vCPUs. If the weight does not double, how is it beneficial to have multiple vCPUs? 2. If the domU has 2vCPUs and a cap of 100% how does this work si...

HI. Got a question. When I assign a number of vcpus to a DomU, Are they dedicated to that VM? For example: If I have 16 vcpus available and 8 DomUs, should I assign 2 vcpus for each one? or could I assign more vcpus (i.e. 6) and the hypervisor takes care of it? Thanks -- ---------------------------------------------------------- Luis R. Romano Es...

When reducing the number of physical cpus available for Domain-0 by xl cpupool-numa-split, reduce the number of vcpus accordingly. Signed-off-by: juergen.gross@ts.fujitsu.com 1 file changed, 20 insertions(+), 2 deletions(-) tools/libxl/xl_cmdimpl.c | 22 ++++++++++++++++++++-- _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen...

Hi, i'm playing a bit around with vcpus. My guest is Windows 10 1903. This is the excerpt from the config: ... <vcpu placement='static' current='2'>4</vcpu> <vcpus> <vcpu id='0' enabled='yes' hotpluggable='no'/> <vcpu id='1' enabled='yes' hotpl...

Hi Daniel, Thanks a lot for the quick and detailed explanation. Please see my another query below. >>In normal usage, the guest vCPUs will be floating arbitrarily across any >>host physical CPUs. So trying to match host / guest topology is not only >>useless, it might actually degrade your performance - eg if you give the >>guest 1 socket, 1 core and 2 threads, but he vCPUs get scheduled on different >>th...

Hello, i have just migrated machine to xen server where only 2 cpus are available. I have copied config from machine where domU was located before. That machine had 4 CPUS (QUADCORE), current machine has 2 CPUS (1 XEON 2cores). I have forgot to change vcpus from 4 to 2 in config, but .. what really surprised me ... machine started . How it is possible? It was really slow alltought and not possible for working (Windows server 2003). Thanks for reply! David _______________________________________________ Xen-users mailing list Xen-users@lists.xensou...

Hi All, I am new here, please warn me If I am not following proper etiquette of this mailing list. I am breaking my head, regarding why libvirt is defining multiple CPU sockets when I increase the vCPU count. As and when I increase the vCPU count in libvirt guest XML, it is increasing the CPU sockets in qemu instance. " -smp 4,sockets=4,cores=1,threads=1 " instead " -smp

...reason'': 0, ''dying'': 0, ''dom'': 0, ''mem_kb'': 262144, ''maxmem_kb'': -4, ''max_vcpu_id'': 0, ''crashed'': 0, ''running'': 1, ''shutdown'': 0, ''online_vcpus'': 1, ''blocked'': 0}) [2006-01-20 21:22:28 xend.XendDomainInfo] INFO (XendDomainInfo:211) Recreating domain 0, UUID 00000000-00000000-00000000-00000000. [2006-01-20 21:22:28 xend.XendDomainInfo] WARNING (XendDomainInfo:233) No vm path in store for existing domain 0 [2006-01...

Hi List, I have a server with two QuadCore 2.93Ghz processors and 16GB Ram, running Debian etch and Xen 3.2-1. Until yesterday I had in this server 2 hvm virtual machines, running w2k, 4 vcpus each without any problem, the use of each virtual machine rarely reach 70%. Today I cloned one of the virtual machines and started they with 2 vcpus, right after I start this new guest the use of cpus on the others guest vms showed by task manager climb to 50% (kernel time) and If I start another...

My test box has an AMD dual core processor in it, giving me 2 physical cpu''s. If I overcommit the vcpu''s (eg vcpus=4) to simulate a 4 cpu machine, how accurate a simulation should it be (apart from performance sucking badly)? James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I''ve just pushed some changes to hg that seem to speed things up a bit for me. On one machine with 2 x dual core 2.4Ghz AMD cpu''s, testing with iperf from DomU to Dom0 I get: Windows (vcpus = 2) - ~500MBits/sec - ~66% cpu utilization (eg 100% on one, and 33% on the second cpu) Linux (vcpus = 1) - ~2200MBits/sec On another machine with 1 x dual core 1.8Ghz AMD cpu, testing as above I get: Windows (vcpus = 2) - ~65MBits/sec - ~100% cpu utilization (eg 100% on both cpu''s) Linux...

I''ve put together two patches. The first introduces a new dom0_op, set_max_vcpus, which with an associated variable and a check in the VCPUOP handler fixes [1]bug 288. Also included is a new VCPUOP, VCPUOP_create, which handles all of the vcpu creation tasks and leaves initialization and unpausing to VCPUOP_initialize. The separation allows for build-time allocation of vcpus...

...h 2005-05-31 15:39:52.000000000 +1000 +++ xen-unstable-working/tools/libxc/xc.h 2005-05-31 17:36:49.000000000 +1000 @@ -252,7 +252,9 @@ const char *cmdline, unsigned int control_evtchn, unsigned long flags, - unsigned int vcpus); + unsigned int vcpus, + unsigned int store_evtchn, + unsigned long *store_mfn); int xc_plan9_build (int xc_handle, diff -ur xen-unstable/tools/libxc/xc_linux_build.c xen-unstable-working/tools/libxc/xc_linux_build.c --- xen-unstable/tools/...

Am 09.08.13 15:09, schrieb Eric Blake: > On 08/09/2013 06:26 AM, Thomas Stein wrote: >> Hello. >> >> Does someone know in what state setvcpu command is? >> >> I get: >> >> virsh # setvcpus gentookvm 4 >> error: internal error: cannot change vcpu count of this domain >> >> and >> >> error : qemuDomainHotplugVcpus:4087 : internal error: cannot change vcpu >> count of this domain >> >> Does this work for someone? > > It works for...

destroy() is being called on exception in both start() and create(). It needs to be called only in create(). Signed-off-by: Aravindh Puthiyaparambil <aravindh.puthiyaparambil@unisys.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi, I have set maxvcpus and vcpus options in my domU configuration file, and I can see that X number of vcpu are set for the domU. I tried to activate all the vpcus by using vpcu_avail option (using decimal to represent vpcu bitmask e.g. 24=11000) but it doesn''t seem to work, and only the first vpcu is activated...

Hi, I have set maxvcpus and vcpus options in my domU configuration file, and I can see that X number of vcpu are set for the domU. I tried to activate all the vpcus by using vpcu_avail option (using decimal to represent vpcu bitmask e.g. 24=11000) but it doesn''t seem to work, and only the first vpcu is activated...

On Fri, Feb 14, 2020 at 16:05:00 +0100, Lentes, Bernd wrote: > Hi, > > i'm playing a bit around with vcpus. > My guest is Windows 10 1903. > This is the excerpt from the config: > ... > <vcpu placement='static' current='2'>4</vcpu> > <vcpus> > <vcpu id='0' enabled='yes' hotpluggable='no'/> > <vcpu id='...

Package: xen-hypervisor-3.2-1-amd64 Version: 3.2.1-2 Severity: normal I have a dual-core host. I wanted to give one of my guests use of 2 vcpus and use of both real cpus. I had the following in my config file for the guest: vcpus = 2 cpus = 0,1 This appeared to work correctly and I saw a big difference in the load average (the guest is monitored by munin-node). However after 12 hours or so, the guest simply stopped responding and froze...