Some additional tests run on my performance testing

[Robert Watson]

On Wed, 27 Aug 2003, Bill Moran wrote:

> Unfortunately (as you'll see) the results were _worse_ than with FreeBSD
> 5.1. 
..
> ad0s1a: UDMA ICRC error writing fsbn 1458368 of 729184-729215 (ad0s1 bn 1458368; cn 241 tn 12 sn 44) retrying
> ad0s1a: UDMA ICRC error writing fsbn 1458368 of 729184-729215 (ad0s1 bn 1458368; cn 241 tn 12 sn 44) retrying
> ad0s1a: UDMA ICRC error writing fsbn 1458368 of 729184-729215 (ad0s1 bn 1458368; cn 241 tn 12 sn 44) retrying
> ad0s1a: UDMA ICRC error writing fsbn 1458368 of 729184-729215 (ad0s1 bn 1458368; cn 241 tn 12 sn 44) falling back to PIO mode

Question: did 5.1 keep the drive as UMA, but 4.8 back it off to PIO?

Did you look at any of the blocksize-related patches that have been
floating around? 

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org      Network Associates Laboratories