OFF TOPIC : On Wed, Oct 8, 2008 at 5:14 PM, FUJITA Tomonori <fujita.tomonori at lab.ntt.co.jp> wrote: > > My point is that the performance of read-world workload benchmark like > dbench are relevant for the users than the performances of sequential > accesses. Funny you should mention DBENCH ( http://dbench.samba.org ). I recently added a NFS backend so that dbench can generate raw NFS traffic using "nfs-style" loadfiles. With the ability to take a NFS network trace and convert into one such loadfile automatically. I also recently added a SCSI backend to dbench (though it only handles READ10 and TESTUNITREADY commands so far) with the intent of being able to trace from a kernel the set of all SCSI operations perfromed durign some operation and then use "dbench -B scsi" to replay the exact same set of commands. My vision is that this could then be used to compare different devices how they operate on specific kinds of workloads. Maybe one "loadfile" that records and replays all SCSI i/o that goes to a device while one is recompiling a kernel, while operating on a very large picture in GIMP, reading a very large document into openoffice, etc etc. Is this something that would be useful for STGT developers? What I am really asking is would something like this : http://dbench.samba.org/web/nfs-loadfiles.html but which would operate on a /dev/sg device and use SCSI commands be useful ? regards ronnie sahlberg -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html |