RE: [Xen-users] disk backend performance

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> >
> > iSCSI + pvSCSI seems to be optimal I guess.
> 
> iSCSI is pretty slow, because of all the tcp-ip overhead. Try AoE
since
> its Layer 2 (Ethernet)
> 

If you implement iSCSI in software then the overhead could matter. If
it's implemented in hardware though (eg an iSCSI HBA) then the
processing overhead becomes negligible. With jumbo frames, the IP+TCP
header overhead (40 bytes) is also negligible.

James

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