| Version 1 (modified by valva, 11 years ago) (diff) |
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Interesting Links
PCI device assignment
In order to assign devices in KVM, you'll need a system which supports VT-d. This has nothing to do with the VT-x support of your CPU, VT-d needs to be supported by both your chipset on your motherboard and by your CPU. Our CPUs (Pentium D 3.00GHz, E5410 and E5620) do not support VT-d. VT-d extesions can be checked in intel.
Network bandwidth
KVM Virtual hosts can use 3 different kind of network cards: virtualized, paravirtualized and dedicated.
| DOWN | UP | |
| Host | 941 Mb/s | 940 Mb/s |
| Paravirtualized | 721 Mb/s | 600 Mb/s |
| Virtualized | 45.7 Mb/s | 48.2 Mb/s |
Tools
lspci
[root@localhost ~]# lspci |grep net 00:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 20)
Iperf
[root@wn002 ~]# /software/bin/iperf -s [root@wn003 ~]# /software/bin/iperf -c wn002 -r ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ ------------------------------------------------------------ Client connecting to wn002, TCP port 5001 TCP window size: 711 KByte (default) ------------------------------------------------------------ [ 5] local 192.168.202.13 port 48473 connected with 192.168.202.12 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 1.10 GBytes 944 Mbits/sec [ 4] local 192.168.202.13 port 5001 connected with 192.168.202.12 port 37033 [ 4] 0.0-10.0 sec 1.10 GBytes 941 Mbits/sec
