From owner-FreeBSD-users-jp@jp.freebsd.org  Tue Aug 18 06:22:17 1998
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From: "Murakami Hiroshi" <freebsd@tmca.ac.jp>
In-Reply-To: <19980817151703.356.qmail@i386.honkan3.tmca.ac.jp> from Murakami Hiroshi at "Aug 18, 98 00:17:03 am"
To: FreeBSD-users-jp@jp.freebsd.org
Date: Tue, 18 Aug 1998 06:22:33 +0900 (JST)
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Subject: [FreeBSD-users-jp 31890] Re: Turning on multi-sector-transfer of wd-device(ex: ATA disk).
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$@<+8J%U%)%m!<$G$9!#(J

($@;d$K$H$C$F(J)$@=EBg$JH/8+(J:
	IBM-DJAA-31700$@$J$k(JEIDE HDD$@$,%^%6!<%\!<%I(J P/I-P55T2P4
$@$H$G(J dd$@$G$J$a$F(J1.8MB/sec$@DxEY$7$+=P$J$$$N$O!"$$$/$i2?$G$bCY$$(J
$@$N$G$O$J$$$+$H$$$&5$$,$7$?$N$G!"$U$H;W$$IU$$$?$3$H$,$"$C$F!"(J
Motherboard $@$N(JBIOS-ROM$@$N%P!<%8%g%s%"%C%W$r$7$F$_$k$3$H$K$7$^$7$?!#(J

$@0JA0%l%]!<%H$7$?(J2$@Bf$N%^%7%s$O$$$:$l$b(JT2P4$@$r%^%6!<%\!<%I(J
$@$H$7$F$$$^$9$,!"(JDJAA-31700$@$rIU$1$F$$$kJ}$OLs(J2$@G/A0$N9XF~ItIJ(J
$@$G$"$j!"(JDHEA-34330$@$rIU$1$F$$$kJ}$OLs(J1$@G/A0$N9XF~ItIJ$G(J
$@;~4|$K0c$$$,$"$j$^$9!#(J

$@%^%6!<%\!<%I$N%^%K%e%"%k$J$I$N7Y9p$K$O(J,$@>c32Ey$NITET9g$,$J$1$l$P(J
BIOS$@$N%U%i%C%7%e%"%C%W$O$J$k$Y$/$J$i$d$i$J$$J}$,NI$$$H$$$&$h$&$J(J
$@$3$H$,=q$+$l$F$$$k$3$H$,B?$$$G$9$7!"(JFreeBSD$@$J$I$O!"%V!<%H$7$F(J
$@$7$^$($P(JBIOS-ROM$@$r;H$&$3$H$OA4$/L5$$$N$G!"$3$l$^$G$O$I$N(JFreeBSD$@$N(J
$@5!3#$b(J BIOS$@$r%"%C%W%G!<%H$;$:$K$[$C$F$*$$$?$N$G$7$?!#(J

$@%"%&%5%9$N%^%6!<%\!<%I$O(J<http://www.ausus.com.tw/>$@$J$I$+$i0z$$$F(J
$@$-$F(J,$@:G?7$N$b$N$^$G$N%P%$%*%9(JROM$@$N%$%a!<%8%U%!%$%k$d=q$-9~$_(J
$@%=%U%H$,L5NA$G<j$KF~$k$N$G!"AaB.%@%&%s%m!<%I$7$F!"(JBIOS$@$r(J
$@%"%C%W%G!<%H$7$^$7$?(J.

$@8E$$J}$N(JT2P4$@$O(JBIOS$@$N%l%Y%k$,(J"0105", $@?7$7$$J}$N(JT2P4$@$O(J"0108"$@$G!"(J
WWW$@%5!<%P!<>e$N:G?7$N$b$N$O(J"0205"$@$G$7$?!#N>J}$H$b(J"0205"$@$K(J
$@%"%C%W%G!<%H$7$F$7$^$$$^$7$?!#(J

$@AaB.(JDJAA-31700$@$NFI$_$@$7B.EY$N;n83$r$7$F$_$k$H(J wd $@$N(Jflags$@$r(J
$@IU$1$J$$%N!<%^%k$J>uBV$N(JOS$@%+!<%M%k$G$b(J, $@$J$s$H(J dd $@$G:GBg(J4MB/sec
$@DxEY=P$k$G$O$"$j$^$;$s$+!#$D$^$j8E$$(JBIOS ROM $@$r%"%C%W%G!<%H(J
$@$9$k$@$1$G!"O"B3E>Aw;~$NB.EY$,8~>e$7$?$N$G$9!#(J

	flags:0x0000
		BIOS$@%P!<%8%g%s%"%C%WA0(J
	  dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	---------------------------------------------------
	ibs=1b:  6.14 Mbytes in 7.69 secs (0.80 Mbytes/sec)
	ibs=2b:  6.55 Mbytes in 5.45 secs (1.20 Mbytes/sec)
	ibs=4b:  6.55 Mbytes in 5.26 secs (1.25 Mbytes/sec)
	ibs=8b:  6.55 Mbytes in 4.41 secs (1.48 Mbytes/sec)
	ibs=16b: 6.55 Mbytes in 3.92 secs (1.67 Mbytes/sec)
	ibs=32b: 6.55 Mbytes in 3.46 secs (1.89 Mbytes/sec)
	ibs=64b: 6.55 Mbytes in 3.98 secs (1.65 Mbytes/sec)
	ibs=128b:6.55 Mbytes in 3.56 secs (1.84 Mbytes/sec)
	ibs=256b:6.55 Mbytes in 3.55 secs (1.85 Mbytes/sec)
	---------------------------------------------------
		BIOS$@%P!<%8%g%s%"%C%W8e(J
	  dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	-----------------------------------------------------
	ibs=1b:  6.14 Mbytes in 6.45 secs (0.95 Mbytes/sec)
	ibs=2b:  6.55 Mbytes in 4.39 secs (1.49 Mbytes/sec)
	ibs=4b:  6.55 Mbytes in 4.21 secs (1.56 Mbytes/sec)
	ibs=8b:  6.55 Mbytes in 3.38 secs (1.94 Mbytes/sec)
	ibs=16b: 6.55 Mbytes in 2.35 secs (2.79 Mbytes/sec)
	ibs=32b: 6.55 Mbytes in 2.35 secs (2.79 Mbytes/sec)
	ibs=64b: 6.55 Mbytes in 1.93 secs (3.40 Mbytes/sec)
	ibs=128b:6.55 Mbytes in 1.64 secs (4.00 Mbytes/sec)
	ibs=256b:6.55 Mbytes in 1.69 secs (3.87 Mbytes/sec)
	-----------------------------------------------------

$@$3$NM}M3$O!"$*$=$i$/!"5/F0;~$K(JEIDE$@$N%$%s%?!<%U%'!<%9$H(JHDD$@$H$N4V$G!"(J
$@E>AwB.EY$N8r>D$r9T$&%U%'!<%:$,4X78$7$F$$$k$b$N$H;W$o$l$^$9!#(J
$@8E$$$^$^$N(JBIOS$@$O!"(JEIDE$@%$%s%?!<%U%'!<%9$N@\B3$N%l%Y%k$H$7$F(J
$@8E$$$b$N$7$+CN$i$J$$0Y$K!"(JHDD$@B&$,%j%;%C%H8e$KE>Aw$N%l%Y%k$r(J
$@$=$N<BNO$h$j$b2<$2$F(J M.B. $@B&$H!V$D$-9g$&!W$h$&$K$J$k$?$a$G$O(J
$@$J$$$G$7$g$&$+!#$D$^$j!"(Jboot$@$7$F$7$^$($P(JFreeBSD$@$O(JBIOS$@$N(J
$@%W%m%0%i%`$d%G!<%?$O;H$o$J$$$H$O$$$&$b$N$N!"(Jboot$@;~$K(JHDD
$@$,?.$89~$s$@%$%s%?!<%U%'!<%9B.EY$G$7$+(JHDD$@$OF0:n$;$:!"(J
$@$=$l0J9_$O(J FreeBSD$@$G$O$=$N(JHDD$@F0:n$N%b!<%I$,(JBIOS$@$,@_Dj(J/$@8r>D(J
$@$7$?;~$N$^$^$K$J$C$F$$$k$N$G$O$J$$$G$7$g$&$+!#(J
($@K\Mh$J$i(J FreeBSD$@$,(JEIDE$@$N%M%4%7%(!<%7%g%sB.EY$J$I$r:F@_Dj(J
$@$G$-$l$PNI$$$7(J[$@$=$&$J$C$F$$$k$H?.$8$F$$$?(J]$@!":GDc$G$b$I$&$$$&(J
$@%O%s%I%7%'!<%/B.EY$K$J$C$?$+!"%b!<%I$O$I$&$J$C$F$$$k$+$H$$$&(J
$@$3$H$rI=<($G$-$k$H$h$$$G$7$g$&!#(J)

$@%+!<%M%k$N%3%s%U%#%0%l!<%7%g%s%Q%i%a%?$G(J wd? $@$K$D$1$k(J
$@%*%W%7%g%s$N(J flags $@$G;XDj$9$k(J $@%^%k%A%;%/%?!<E>Aw%b!<%I$N(J
$@>e8B$N8D?t$b(JBIOS$@$+$iM3Mh$7$F$$$k$+$b$7$l$^$;$s!#(J
($@;d$K$ONI$/$o$+$i$J$$(J)

$@$5$F(J BIOS $@$b%"%C%W%0%l!<%I$7$?$3$H$@$7!"$=$l$G$O(J DJAA-31700
$@$N(J flags $@%*%W%7%g%s$rJQ$($FB.EY$r7W$C$F$_$k$+$H;W$$<B:]$K(J
$@$d$C$F$_$^$7$?!#(J $@$9$k$H(J 0x00ff $@$^$?$O(J 0x8000$@$G$O(J
$@B?>/8z2L$,$"$C$?$N$G$9$,(J,...

====================================================
flags: 0x0000
	 $@B,DjJ}K!(J dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	-----------------------------------------------------
	ibs=1b:  61.4 Mbytes in 64.5 secs (0.95 Mbytes/sec)
	ibs=2b:  65.5 Mbytes in 44.1 secs (1.49 Mbytes/sec)
	ibs=3b:  61.4 Mbytes in 40.3 secs (1.52 Mbytes/sec)
	ibs=4b:  65.5 Mbytes in 42.6 secs (1.54 Mbytes/sec)
	ibs=5b:  61.4 Mbytes in 31.7 secs (1.94 Mbytes/sec)
	ibs=6b:  61.4 Mbytes in 31.7 secs (1.94 Mbytes/sec)
	ibs=8b:  65.5 Mbytes in 33.8 secs (1.94 Mbytes/sec)
	ibs=16b: 65.5 Mbytes in 23.5 secs (2.79 Mbytes/sec)
	ibs=32b: 65.5 Mbytes in 23.4 secs (2.80 Mbytes/sec)
	ibs=64b: 65.5 Mbytes in 19.3 secs (3.40 Mbytes/sec)
	ibs=128b:65.5 Mbytes in 16.3 secs (4.01 Mbytes/sec)
	ibs=256b:65.5 Mbytes in 16.6 secs (3.96 Mbytes/sec)
	-----------------------------------------------------
===============================================================
flags: 0x00ff
	$@B,DjJ}K!(J dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	---------------------------------------------------
	ibs=1b:  61.4 Mbytes in 64.5 secs (0.95 Mbytes/sec)
	ibs=2b:  65.5 Mbytes in 41.5 secs (1.58 Mbytes/sec)
	ibs=3b:  61.4 Mbytes in 37.7 secs (1.63 Mbytes/sec)
	ibs=4b:  65.5 Mbytes in 42.8 secs (1.53 Mbytes/sec)
	ibs=5b:  61.4 Mbytes in 28.1 secs (2.19 Mbytes/sec)
	ibs=6b:  61.4 Mbytes in 26.3 secs (2.33 Mbytes/sec)
	ibs=8b:  65.5 Mbytes in 25.2 secs (2.60 Mbytes/sec)
	ibs=16b: 65.5 Mbytes in 17.1 secs (3.83 Mbytes/sec)
	ibs=32b: 65.5 Mbytes in 15.7 secs (4.18 Mbytes/sec)
	ibs=64b: 65.5 Mbytes in 13.6 secs (4.83 Mbytes/sec)
	ibs=128b:65.5 Mbytes in 13.1 secs (4.99 Mbytes/sec)
	ibs=256b:65.5 Mbytes in 13.1 secs (5.00 Mbytes/sec)
	---------------------------------------------------
=============================================================
flags.0x8000
	$@B,DjJ}K!(Jdd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	----------------------------------------------------
	ibs=1b:  61.4 Mbytes in 61.7 secs (1.00 Mbytes/sec)
	ibs=2b:  65.5 Mbytes in 44.0 secs (1.49 Mbytes/sec)
	ibs=3b:  61.4 Mbytes in 37.0 secs (1.66 Mbytes/sec)
	ibs=4b:  65.5 Mbytes in 37.9 secs (1.73 Mbytes/sec)
	ibs=5b:  61.4 Mbytes in 31.7 secs (1.94 Mbytes/sec)
	ibs=6b:  61.4 Mbytes in 31.7 secs (1.94 Mbytes/sec)
	ibs=8b:  65.5 Mbytes in 28.1 secs (2.34 Mbytes/sec)
	ibs=16b: 65.5 Mbytes in 23.4 secs (2.80 Mbytes/sec)
	ibs=32b: 65.5 Mbytes in 18.1 secs (3.61 Mbytes/sec)
	ibs=64b: 65.5 Mbytes in 13.1 secs (5.00 Mbytes/sec)
	ibs=128b:65.5 Mbytes in 13.1 secs (4.99 Mbytes/sec)
	ibs=256b:65.5 Mbytes in 13.1 secs (5.00 Mbytes/sec)
	----------------------------------------------------
==============================================================
flags : 0x80ff
	 $@B,DjJ}K!(J dd if=/dev/rwd2 of=/dev/null ibs=??? count=????
	-----------------------------------------------------
	bs=1b:   61.4 Mbytes in 61.60 secs (1.00 Mbytes/sec)
	ibs=2b:  65.5 Mbytes in 40.42 secs (1.62 Mbytes/sec)
	ibs=3b:  61.4 Mbytes in 35.68 secs (1.72 Mbytes/sec)
	ibs=4b:  65.5 Mbytes in 35.65 secs (1.84 Mbytes/sec)
	ibs=5b:  61.4 Mbytes in 26.97 secs (2.28 Mbytes/sec)
	ibs=6b:  61.4 Mbytes in 25.39 secs (2.42 Mbytes/sec)
	ibs=8b:  65.5 Mbytes in 39.25 secs (1.67 Mbytes/sec)<$@$3$3$G%(%i!<H/@8(J
	ibs=16b: 65.5 Mbytes in 44.09 secs (1.49 Mbytes/sec)
	ibs=32b: 65.5 Mbytes in 51.02 secs (1.28 Mbytes/sec)
	ibs=64b: 65.5 Mbytes in 53.68 secs (1.22 Mbytes/sec)
	ibs=128b:65.5 Mbytes in 65.01 secs (1.01 Mbytes/sec)
	ibs=256b:65.5 Mbytes in 65.96 secs (0.99 Mbytes/sec)
	-----------------------------------------------------
==============================================================

$@$X$s$J$3$H$K(J flags $@$r(J 0x80ff$@$K$9$k$H!"@-G=$,A4A3=P$J$$>e(J
ibs=8b (8block=8x512bytes) $@$r7W$C$F$$$k$H!"(J
	wd2: interrupt timeout:
	wd2: status 50<rdy,seekdone> error 0
$@$H$$$&%a%C%;!<%8$,%3%s%=!<%kEy$K=P$F$7$^$$$^$9!#$=$&$7$F(J
$@$=$l0J9_$N@-G=$,2<$,$C$F$7$^$$$^$9!#(J $@F1$8(JHDD$@%I%i%$%V$KBP$7$F(J
ibs=8b $@$G:F$S(Jdd$@$r$+$1$F$b!":F$S%a%C%;!<%8$,=P$k$3$H$O(J
$@$"$j$^$;$s$,!"F1$87A<0$N(JDJAA-31700$@$G$"$k(J wd0 $@$KBP$7$F(J
dd $@$r$+$1$k$H!":G=i#12s$@$1$O(J
	wd0: interrupt timeout:
	wd0: status 50<rdy,seekdone> error 0
$@$H$$$&$^$C$?$/F1$8%a%C%;!<%8$,=P$^$9!#(J
error 0 $@$H$$$&$N$O!"$O$?$7$F!VLdBj$J$7!W$H$$$&$3$H$J$N$+(J,,?
$@$5$C$Q$j$o$+$j$^$;$s$M!#(J

$@$H$b$+$/(J,BIOS$@$N%"%C%W%G!<%H$K$h$j!"(JIBM-DJAA-31700$@$N(J
$@4pK\E*$JE>AwB.EY$O8~>e$7$?$N$G$9$,!"(Jflags$@%Q%i%a%?!<$N(J
$@8z$-L\$OBg$7$?$3$H$,$J$/$F!"2?=h$+$KE>AwB.EY$N%M%C%/$,$"$k$H(J
$@;W$o$l$^$7$?!#(J

# $@:#2s$N6571(J:
#  FreeBSD$@$O%V!<%H$5$($9$l$P(J BIOS $@$OL54X78$H$$$&8@MU(J
# $@$r0B0W$K$O?.$8$F$O$J$i$J$$!#(J

