On Mon, 22 Oct 2007, S. Hakim Hamdani [ML] wrote: > > Reading from DVD+R media under OpenSolaris is dead slow. I have tried > this with two different laptop optical drives, one OEM el Cheapo drive > and a Pioneer DVD drive. > > To read one DVD+R with 7 files on it, totalling 4247 MB, it takes 2590 > s, which equates to a meagre 1.64 MB/s read.
Are you reading the disc directly (from /dev/dsk/c...s2) or just the files on a mounted disc? If you are reading files, it is expected to perform badly. > > Writing, on the other hand, works at maximum media speed just fine. > > How come reading from DVD media is so slow? I mean we're talking about > nearly 44 minutes here . The hsfs (ISO 9660 filesystem) driver is currently very inefficient; Moinak has made several improvements that will be integrated in snv_76 - see http://bugs.opensolaris.org/view_bug.do?bug_id=6588256 -Albert
