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SubjectNCR benchmarking
Date
Now, when we have 2 different drivers for common NCR boards, I was
interested in performance differences between the "original" linux
driver, and the ported BSD driver.

Here are the bonnie results:

First, the ported FreeBSD driver:

-------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
2.0.3_NC 50 4450 85.0 4375 25.6 1407 17.1 2898 46.1 3849 19.9 66.0 2.9


And now with the linux driver:

-------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
2.0.3_53 50 4656 85.2 4648 24.7 1499 16.7 2895 45.6 4075 17.4 65.6 3.3


Both tests were run under the same conditions. I did them a short time
after a clean boot, only one user logged in, same filesystem &
test-directory. Same hardware, of course :-)

The linux driver was configured for doing 10 MHz FAST SCSI transfers,
disconnecting enabled.

The FreeBSD driver also does FAST SCSI-2, disconnecting and tagged
queuing.

System is a ASUS P133 Triton, 64 megs, NoName NCR 53C810. The
benchmarks were done on an IBM DPES-31080 (1 GB)

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