Adaptec 1542 Kernel tuning with 386/ix

[Larry Snyder]

I've been tuning my kernel (386/ix 3.2 2.2 release) and running
a benchmark from MIPS - and the results are interesting:

CONTROLLER: ADAPTEC 1542A          DRIVE: MINISCRIBE 9380S
MOTHERBOARD: 25MHZ '386 SOYO       RAM: 8 MEGS 80 NS 32 BIT ON MOTHERBOARD


BUSS SPEED       12.5M   12.5M   12.5M   12.5M    8MHZ   12.5M
DMA SPEED         5MHZ    6.7M      8M      8M      8M      8M
BUSS ON/OFF        9/5     9/5     9/5     5/9    10/4    10/4

DD_1M1K           238K	  284K	  213K	  223K    205K    223K
DD_1M2K           244K    180K    238K    277K    190K    116K
DD_1M8K           197K    277K    190K    330K    197K    256K
DD_1M17K          201K    277K    277K    218K    186K    190K
DD_5M1K           368K    274K    322K    351K    353K    351K
DD_5M2K           348K    348K    363K    385K    318K    314K
DD_5M8K           376K    348K    328K    376K    346K    356K
DD_5M17K          358K    371K    388K    385K    288K    478K
CP_1M             445K    488K    465K    465K    284K    539K
CP_2M             465K    460K    460K    418K    386K    436K
CP_5M             483K    476K    478K    459K    408K    427K
DISK-1T1X_RD      190K    293K    301K    201K    353K    379K
DISK-1T1X_WR     1280K   1280K   1280K   1280K   1280K    1280K
DISK-1T1X_RW      155K    155K    155K    153K    153K    153K
DISK-4T1X_RD      341K    379K    338K    369K    282K    286K
DISK-4T1X_WR      250K    261K    264K    254K    139K    277K
DISK-4T1X_RW       77K     76K     75K     75K     72K    77K
DISK-10T1X_RD     358K    359K    400K    366K 	  344K    372K
DISK-10T1X_WR     127K     98K     98K    106K 	   70K    121K
DISK-10T1X_RW      62K     62K     62K     61K     61K    62K
DISK-1T2X_RD      341K    366K    488K    476K    455K    500K
DISK-1T2X_WR     1463K   1463K   1463K   1463K   1463K    1463K
DISK-1T2X_RW      211K    213K    211K    209K    207K    213K
DISK-4T2X_RD      379K    374K    404K    367K    343K    392K
DISK-4T2X_WR      212K    218K    204K    212K    123K    247K
DISK-4T2X_RW       74K     74K     74K     73K     70K    75K
DISK-10T2X_RD     376K    382K    387K    332K 	  329K    377K
DISK-10T2X_WR     119K    123K    116K    120K 	   72K    124K
DISK-10T2X_RW      61K     61K     61K     60K 	   60K    62K

I will be posting the benchmark to the net later this evening
(posting only to comp.unix.i386) and am looking forward to feedback
from others running this controller with ISC 2.2.


-- 
      Larry Snyder, Northern Star Communications, Notre Dame, IN USA 
            uucp: iuvax!ndmath!nstar!larry  -or-  larry at nstar
 Public Access Unix Site (219) 289-3745 / lots of files & free PEP feeds!