Chris wrote: >> It makes a huge difference to performance since the Solaris IDE driver >> has lots of inb()/outb()s which are trapped > > Is there any work in progress to update/optimize the > Solaris IDE driver for Xen? I've got a server with > an Intel 5000 series chipset that supports SATA devices, > but not in AHCI mode. Performance isn't pretty under > Xen, and is horrible with Xen+ZFS, despite applying > recommended tuning to each.
On a related note, I found a couple of bugs last night while chasing down a hang in the IDE driver. I have fixes for both and they should improve IDE performance some.. But if your trying to do anything moderate to serious with Xen, and have more than ~ 3G of memory in the system, you should not be using IDE. You need a disk hba and NIC which can reach all of physical memory. MRJ _______________________________________________ xen-discuss mailing list [email protected]
