On Wed, 1 Jan 1997, Andreas Wrede wrote:

> I build a new kernel with the FreeBSD changes and noticed a marked increase 
> in performance of my Quantum Grand Prix drive (XP34301 - 4GB).
> 
> Bonnie results below:

              -------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
curent    100  2326 82.2  2607 14.3  1179 13.4  2500 57.3  2660 15.0  56.9  4.4
w/ patch  100  2716 96.9  3883 22.6  1451 15.9  3732 85.4  4016 22.0  71.0  5.3

[above results unquoted to avoid wrapping]

Isn't a Grand Prix a 7200 RPM drive? If so, those results still
seem a bit slow. If it's a 5400, the results are reasonable.

I've just rebuilt an Alpha kernel wth the new driver (pl24), and
I notice no significant difference. The IBM drive is a 5400 RPM
DPES-31080, the Tos drive is the internal one on my Multia (Toshiba
MK2526FB).

Before:

M2B IBM  100  3330 72.5  3279 25.8  1241 15.7  3518 81.1  3605 27.6  54.1  5.3
M2B IBM  100  3295 69.5  3262 25.3  1240 15.3  3486 77.7  3615 26.8  54.1  5.5
M2B Tos  100  1372 27.7  1345  9.9   726  9.5  1872 40.7  1830 13.8  31.1  3.1
M2B Tos  100  1382 29.3  1373  9.9   728  9.3  1955 43.4  1979 14.4  31.5  3.1

After:

M2B IBM  100  3203 68.9  3155 27.4  1210 18.4  3410 75.9  3544 27.0  52.5  5.2
M2B IBM  100  3246 75.5  3165 26.4  1211 17.6  3404 74.9  3535 27.2  52.6  5.6
M2B Tos   50  1360 29.1  1353 10.0   722 10.5  1879 42.3  1977 14.8  33.4  3.4
M2B Tos   50  1373 28.0  1304  9.9   718  9.4  1887 40.7  1993 14.5  33.9  3.4

cjs

Curt Sampson    cjs@portal.ca		Info at http://www.portal.ca/
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