[Xen-devel] First result from small address spaces

[Jacob Gorm Hansen <jacobg@xxxxxxx>]

hi,

I finally have a setup where I can measure I/O performance of stock vs. 
my own 'small address spaces' enabled version of Xen.
Doing a simple iperf -w256K with the client in domU and the server on a 
remote machine, everything without hyper-threading and using bridged 
networking.
Stock xen : 574MBits/s
SAS xen: 620MBits/s

Not massive, but an 8% improvement in this one case. I suspect that in 
general, this only makes a real difference if the domU doing something 
useful with the CPU other than feeding data into a socket.
Where can I adjust the thresholds for buffering of packets and interrupts?

Jacob

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel