[Stgt-devel] ibmvio is slow

[Bastian Blank]

On Wed, Jun 20, 2007 at 08:40:51AM +0900, FUJITA Tomonori wrote:
> > I tried the ibmvio target on a busy vioserver on a power5 machine. It
> > works fine, I got no problem. It provides services to 7 initiators with
> > at least 2 luns each.
> Nice.

Okay, not completely without problems. Using iscsi and ibmvio at the
same time produces:
|  connection1:0: iscsi: detected conn error (1011)
| iscsi: host reset succeeded
|  connection1:0: iscsi: detected conn error (1011)
| iscsi: host reset succeeded
| sd 5:0:0:1: scsi: Device offlined - not ready after error recovery
| sd 5:0:0:1: [sdc] Result: hostbyte=DID_BUS_BUSY driverbyte=DRIVER_OK,SUGGEST_OK

> We don't need to call mmap/unmap per request though this hack is
> disable to keep the code simple. We need to find a way to avoid
> registering/de-registering memory region for more high performance.

I think the hurd filesystem daemons had to face the same problem.

Bastian

-- 
One does not thank logic.
		-- Sarek, "Journey to Babel", stardate 3842.4