similar to: trying to get "pages" output in virsh capabilities

Hi, I'm trying to figure out what controls the number if in-flight virtio block operations when running linux in qemu on top of a linux host. The problem is that we're trying to run as many VMs as possible, using ceph/rbd for the rootfs. We've tripped over the fact the the memory consumption of qemu can spike noticeably when doing I/O (something as simple as "dd" from

Hi, I'm trying to figure out what controls the number if in-flight virtio block operations when running linux in qemu on top of a linux host. The problem is that we're trying to run as many VMs as possible, using ceph/rbd for the rootfs. We've tripped over the fact the the memory consumption of qemu can spike noticeably when doing I/O (something as simple as "dd" from

I wanted to run without 2MB and 1GB EPT pages, so I added "hap_2mb=0 hap_1gb=0" to the Xen grub command line. However I see the following on Xen boot: (XEN) EPT supports 2MB super page. When I bring up a guest I see a non-zero number of 2MB pages in the "xl create" output: xc: info: VIRTUAL MEMORY ARRANGEMENT: Loader: 0000000000100000->000000000017af10 TOTAL:

Hi, I'm running into some problems with libvirt and hoping someone can point me at some instructions or maybe even help me out. First, are there any requirements on qemu version in order to use the "numatune" and/or "cpu/numa/cell" elements? Or do they use cgroups and not the native qemu numa support? Second, are there any instructions on how to set up cgroups? I

The attached file is the super page patch which supports both 2MB and 4MB (depending on the paging modes of hypervisor) under hardware assisted paging. The idea is to allocate super pages when guests are being created. Whenever such requests cannot be satisfied, it falls back to normal 4KB allocation. Also it splits large pages into normal 4KB pages whenever necessary. This patch is applicable on

Hello, I''ve shorewall running a three interfaces firewall (net, loc, dmz) and I''ve got performances problems. My measured bandwidth from internet is up to 6.8 Mb/s, and I "only" get 3.5Mb/s on my LAN and 5Mb/s on my dmz. I checked with iperf, and all my interfaces (eth0, eth1, eth2) can actually work at 10 Mb/s. I tried disabling all the rules from loc to net

Also, correct a copy&paste error in the documentation. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> --- This patch has been in the XenServer patch queue for a long time. It is more for debugging purposes than anything else, but is still proving to be valuable for tracking down bugs with HVM paging operations. diff -r 5af4f2ab06f3 -r e6ec5b2b717f

Hi! I''m wondering whether anyone has successfully set up a bandwidth control system using ipp2p and shorewall. I have been able to drop connecions altogether, but I don''t seem to be able to get CONNMARK working with ipp2p. Any pointers would be greatly appreciated :) ______________________________ Mario R. Pizzolanti

diff -r e6266fc76d08 -r 6feac926cf80 xen/drivers/passthrough/vtd/iommu.c --- a/xen/drivers/passthrough/vtd/iommu.c Fri Jul 27 12:22:13 2012 +0200 +++ b/xen/drivers/passthrough/vtd/iommu.c Mon Jul 30 15:35:16 2012 -0700 @@ -2137,6 +2137,15 @@ int __init intel_vtd_setup(void) { iommu = drhd->iommu; + printk("Intel VT-d supported page sizes: 4kB"); + if

Hi, I'm booting an qemu VM from a virtual disk. In the success case the virtual console shows something like this: SYSLINUX 4.05 0x54f93f16 Copyright (C) 1994-2011 H. Peter Anvin et al Loading vmlinuz......... Loading initramfs.img...................................ready. [ 0.000000] Initializing cgroup subsys cpuset <etc> In the failure case I'm seeing something like this:

On Sat, Mar 11, 2017 at 07:59:31PM +0800, Wei Wang wrote: > I'm thinking what if the guest needs to transfer these much physically > continuous > memory to host: 1GB+2MB+64KB+32KB+16KB+4KB. > Is it going to use Six 64-bit chunks? Would it be simpler if we just > use the 128-bit chunk format (we can drop the previous normal 64-bit > format)? Is that a likely thing for the

On Sat, Mar 11, 2017 at 07:59:31PM +0800, Wei Wang wrote: > I'm thinking what if the guest needs to transfer these much physically > continuous > memory to host: 1GB+2MB+64KB+32KB+16KB+4KB. > Is it going to use Six 64-bit chunks? Would it be simpler if we just > use the 128-bit chunk format (we can drop the previous normal 64-bit > format)? Is that a likely thing for the

Hello, I have encountered a rather strange issue with memory allocation to the domU. I am trying to run FreeBSD in a HVM, my config file is: [root@xen-srv sandi]# cat /etc/xen/vm/freebsd.cfg builder = "hvm" vcpus = 1 memroy = 2048 disk = [ ''phy:/dev/xen-dom0/freebsd,hda,w'' ] name = "freebsd" #vif = [''bridge=xenbr0,mac=00:16:3e:00:af:d8'']

On 08/26/2014 04:34 AM, Stefan Hajnoczi wrote: > On Mon, Aug 25, 2014 at 8:42 PM, Chris Friesen > <chris.friesen at windriver.com> wrote: >> I'm trying to figure out if there are any limits on how high the inflight >> numbers can go, but I'm not having much luck. >> >> I was hopeful when I saw qemu calling virtio_add_queue() with a queue size, >>

On 08/26/2014 04:34 AM, Stefan Hajnoczi wrote: > On Mon, Aug 25, 2014 at 8:42 PM, Chris Friesen > <chris.friesen at windriver.com> wrote: >> I'm trying to figure out if there are any limits on how high the inflight >> numbers can go, but I'm not having much luck. >> >> I was hopeful when I saw qemu calling virtio_add_queue() with a queue size, >>

Hi, i have just install debian wheezy and xen-hypervisor-4.1-amd64 helped with http://wiki.debian.org/Xen http://wiki.xenproject.org/wiki/Xen_Beginners_Guide#Installing_Debian_Squeeze created test.cfg http://pastebin.com/D5Wsx6eB xl create test.conf Parsing config file test.conf xc: info: VIRTUAL MEMORY ARRANGEMENT: Loader: 0000000000100000->0000000000174170 TOTAL:

I''m trying to get ceph working with decent performance (currently getting kb/second write performance!) and it seems that maybe the Debian wheezy kernel is just a bit too ancient. The 3.8 kernel from experimental works on bare metal, but when booting as dom0 under the xen hypervisor it crashes. I just figured out how to redirect xen output to my IPMI/BMC serial port and I see this:

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Over the past weekend, I added SPF screening on the MTA at shorewall.net. SPF is a mechanism for a domain to use DNS to publish a list of those IP addresses that are used to send legitimate email from that domain. A receiving MTA can use that published information to determine if email from a domain is being sent through an MTA belonging to that

Hi Folks! I''m new to shorewall (in the process of switching from Bastille), and I have a question as to how to address using Bluetooth enabled Palms with a BT dongle on a linux box protected by shorewall. Basically I followed the directions located at http://www.metacon.ca/bcs/view.php?page=bluetooth to get things working strictly with iptables, specifically: echo

Hi, I am upgrading libvirt from 1.2.9 to 2.0.0 and I have successfully make the libvirtd running. However, virsh cannot connect to hypervisor with following errors: virsh # connect error: failed to connect to the hypervisor root@node-55:/usr/local# virsh -c 'qemu:///system' connect error: failed to connect to the hypervisor error: no connection driver available for qemu:///system Can