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I understand. I wrote about this earlier http://forum.proxmox.com/threads/11248-KVM-performance-on-different-operating-systems?p=61772#post61772

I'm trying to find difference between Proxmox and CentOS because everything else is the same. In CentOS: # /usr/libexec/qemu-kvm --version QEMU PC emulator version 0.12.1 (qemu-kvm-0.12.1.2), Copyright (c) 2003-2008 Fabrice Bellard # uname -a Linux hg-sr-v1 2.6.32-279.5.2.el6.x86_64 #1 SMP Fri...

I think that it is not in the storage system. This is the diagram of CPU load on Proxmox during the execution of my program: This is the diagram of CPU load on CentOS: This is the result of program ibbackup.exe v6.5.1.887 from Yaffil SQL Server v.1.3.0.887.

using mount with option 'barrier=1': fio --filename=/var/lib/vz/testbench --direct=1 --rw=randread --bs=4k --size=1G --iodepth=100 --runtime=120 --group_reporting --name=file1 --ioengine=libaio file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=100 Starting 1 process file1...

I've remounted /var/lib/vz with the options like in CentOS except 'seclabel'. kernel: EXT3-fs (dm-5): error: unrecognized mount option "seclabel" or missing value /dev/mapper/pve-data /var/lib/vz ext3 rw,relatime,errors=continue,barrier=1,data=ordered 0 0 The result did not change.:(

I use my own business software, which actively uses DBMS Firebird. The size of database is 1.7GB.

In Proxmox /dev/mapper/pve-data /var/lib/vz ext3 rw,relatime,errors=continue,barrier=0,data=ordered 0 0 In CentOS /dev/mapper/pve-data /mnt/data ext3 rw,seclabel,relatime,errors=continue,barrier=1,data=ordered 0 0 I've tested with one VCPU, results are the same.

Unfortunately, yes, I do. In CentOS the test takes 1:10, bun in Proxmox it takes 2:35.

Hi, Yes. I use no options. Just mount /dev/mapper/pve-data: In Proxmox: /dev/mapper/pve-data on /var/lib/vz type ext3 (rw) In CentOS: /dev/mapper/pve-data on /mnt/data type ext3 (rw) In Proxmox: /usr/bin/kvm \ -boot menu=on \ -chardev...

Hosts have 2 CPU by 6 cores. But VM uses only 2 VCPUs. 1 min 7 sec...

As I wrote before, it's not matter, what type of the storage is and where it's placed, performance is the same. I'll say by another words: how can I make performance like in CentOS? I run the same virtual machine from one image on different operating systems and get different performance, but...

Sorry :-) My guest OS is Windows 2008 R2 with virtio-win-0.1-30, 2 VCPUs and 8GB RAM. Database size is 1.7GB. My servers have SSD and I installed a different OS on them. The image of guest VM (raw or qcow2 - not matter) is stored on RAID6 or SSD (not matter). Also not matter the cache is...

Hi all, I'm testing some different hypervisors for my future cluster. The servers is based on Intel platform R2308GZ4GC and contains two CPU Xeon E5-2630 6C, 64GB RAM, LSI MegaRAID SAS 9265-8i with BBU, 8x450GB 15K SAS disks. For the testing I used my business software, which actively uses...

Yes, it helped. Thanks. root@pm1:/var/log/pve/tasks/1# qm unlock 113 unable to open file '/etc/pve/nodes/pm1/qemu-server/113.conf.tmp.250990' - Input/output error root@pm1:/var/log/pve/tasks/1# /etc/init.d/pve-cluster restart Restarting pve cluster filesystem: pve-cluster...

Hi! Look at my first post. I already tried to unlock this VM and I have the latest version of PVE. :-( This is a single node. -- Best regards, Michael

I have an issue with pve. root@pm1:/etc/pve/local/qemu-server# ls -l total 4 -rw-r----- 1 root www-data 267 May 3 21:37 100.conf -rw-r----- 1 root www-data 183 Mar 7 19:32 101.conf -rw-r----- 1 root www-data 207 Jan 12 19:48 106.conf -rw-r----- 1 root www-data 205 Feb 13 20:02 109.conf...

Hm... But why You place hole system to usbkey? You had to place on usbkey is only /boot and may be other folders except /var. /var must reside on a raid. In that case the usbkey will be used only for booting of Proxmox. I plan to use this method. In my case I will able to release four discs for...

Why? VMware ESXi uses this type of booting (from SD card). System disk in PVE will be used for booting only. All other data will be exist from shared storage.

Hello, Is there a possibility to boot PVE from USB flash or SD card? I'd like to build a cluster w/o disks. I plan to use 2 x HP DL380G7 & P2000 vs SAS controllers.

#cat 100.conf name: Aurum cpu: core2duo sockets: 1 cores: 1 memory: 3072 ide0: vg1:vm-100-disk-1,cache=writeback ide1: ram:100/vm-100-disk-1.qcow2 ide2: local:iso/virtio-win-0.1-15.iso,media=cdrom ide3: vg2:vm-100-disk-1,cache=writeback bootdisk: ide0 ostype: win7 net0...