hi,
we have some perfomance problems with the updated proxmox 1.7 and the 1.8 version.
We tested the same VMs ( backup & restore of a Win7 64bit SP1 and a SmallBusinessServer 2011 -VM)
on a proxmox with an updated version 1.7 & fresh installed 1.8 (original cd-version) and the disk-speed (read + write) of the vms on their harddisk was terrible.
In 1.7 kernel 2.6.32-28 without any updates it is quite okay, but since we've updated the 1.7 version or upgraded it to 1.8 it's terrible.
It's also strange, that the VM with Win7 in one cenario writes faster than it reads!
The VMs:
SBS 2011 VM:
8GB Ram
4 CPU Sockets
1 Core/Socket
1 80GB Virtio HDD with Virtio 1.1.16-drivers
Win7-64bit-SP1 VM:
4GB Ram
4 CPU Sockets
1 Core/Socket
1 64GB IDE HDD
Both guests are set up as "windows 2008"-guests.
Our system:
IBM x3650 M3:
2x Xeon E5620 CPU
24GB Ram
4x 500GB SAS-HDD in a LSI M5014-RAID5-array
Performance values (all done at least 5 times):
version 1.7 installed from cd - kernel 2.6.32-28:
SBS 2011-VM:
read: 350-400 MB/s
write: 60-75 MB/s
Win7-64bit-SP1 VM:
read: 110-140 MB/s
write: 60 - 75MB/s
version 1.7 kernel 2.6.32-33 and 1.8 installed from cd current kernel
SBS 2011-VM:
read: 50-80 MB/s
write: 20-40 MB/s
Win7-64bit-SP1 VM:
read: 40-70 MB/s
write: 50-90 MB/s
a downgrade to the 2.6.18-kernel (recommended in an other thread) made even more problems like a total network failure.
Can anyone help us with that problem?
we have some perfomance problems with the updated proxmox 1.7 and the 1.8 version.
We tested the same VMs ( backup & restore of a Win7 64bit SP1 and a SmallBusinessServer 2011 -VM)
on a proxmox with an updated version 1.7 & fresh installed 1.8 (original cd-version) and the disk-speed (read + write) of the vms on their harddisk was terrible.
In 1.7 kernel 2.6.32-28 without any updates it is quite okay, but since we've updated the 1.7 version or upgraded it to 1.8 it's terrible.
It's also strange, that the VM with Win7 in one cenario writes faster than it reads!
The VMs:
SBS 2011 VM:
8GB Ram
4 CPU Sockets
1 Core/Socket
1 80GB Virtio HDD with Virtio 1.1.16-drivers
Win7-64bit-SP1 VM:
4GB Ram
4 CPU Sockets
1 Core/Socket
1 64GB IDE HDD
Both guests are set up as "windows 2008"-guests.
Our system:
IBM x3650 M3:
2x Xeon E5620 CPU
24GB Ram
4x 500GB SAS-HDD in a LSI M5014-RAID5-array
Performance values (all done at least 5 times):
version 1.7 installed from cd - kernel 2.6.32-28:
SBS 2011-VM:
read: 350-400 MB/s
write: 60-75 MB/s
Win7-64bit-SP1 VM:
read: 110-140 MB/s
write: 60 - 75MB/s
version 1.7 kernel 2.6.32-33 and 1.8 installed from cd current kernel
SBS 2011-VM:
read: 50-80 MB/s
write: 20-40 MB/s
Win7-64bit-SP1 VM:
read: 40-70 MB/s
write: 50-90 MB/s
a downgrade to the 2.6.18-kernel (recommended in an other thread) made even more problems like a total network failure.
Can anyone help us with that problem?