[rescue] can you explain these SCSI numbers?

Mon Apr 7 14:23:16 CDT 2003

I used an external disk array, same cabling.  Results are from bonnie.

SM61 = SS10/SM61, 192MB RAM
SS5/70 = Sparc 5 @70Mhz, 32MB RAM

Why does the SS5 beat the SS10?

              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
SS5/70    200  1704 94.5  2496 23.5  1156 18.6  2009 93.9  2585 20.8  51.4  5.7

              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
SM61      200   781 29.7   738  4.4   524  4.5  1879 80.0  1843  7.5  50.8  3.2

Note, I used a 200MB filesize to get rid of any filesystem buffer
cache issues.  Platform was OpenBSD, which uses just 5% of RAM as
buffer for the filesystem.

Any suggestions welcome.

--Patrick