[illumos-Developer] Code Review: WRITE_SAME support for COMSTAR's stmf_sbd

[Dan McDonald]

On Wed, May 18, 2011 at 10:22:03AM -0700, Richard Elling wrote:

<SNIP!>

> I'd like to see a dtrace probe around the actual I/O, sbd_scsi.c line 2307
> so we can measure how long the actual write same I/O takes.

A single probe?  As I mentioned earlier, if you've something specific in
mind, please say so.  I can see a *pair* of probes (pre-I/O, post-I/O) being
useful, but I'm trying to make sure I do something right.

You have something in mind, please expand or clarify?

Thanks,
Dan