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From: "Murakami Hiroshi" <freebsd@tmca.ac.jp>
In-Reply-To: <199808162143.GAA01051@volvo.kom.comm.waseda.ac.jp> from Yasuyuki OKASE at "Aug 17, 98 06:43:57 am"
To: FreeBSD-users-jp@jp.freebsd.org
Date: Tue, 18 Aug 1998 00:16:11 +0900 (JST)
Cc: murakami@tmca.ac.jp
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Subject: [FreeBSD-users-jp 31881] Re: Turning on multi-sector-transfer of wd-device(ex: ATA disk).
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FreeBSD-ML $@$G$N(J wd $@$N%I%i%$%P$N%+!<%M%k%3%s%U%#%0%l!<%7%g%s%Q%i%a%?(J
$@$rJQ$($k$H!"(JIDE$@%I%i%$%V$N%Q%U%)!<%^%s%9$,8~>e$9$k$H$$$&OC$rFI$s$G!"(J
$@AaB.3N$+$a$F8+$^$7$?!#$3$NNc(J(IBM DHEA34330:4.3GB$@%I%i%$%V(J)$@$G$O(J
$@3N$+$KE>Aw$,Bg$-$/$J$k$H!"%9%k!<%W%C%H$,$[$\#2G\$K$J$k$h$&$G$9!#(J

$@$3$N7WB,BP>]$H$7$?(Jwd2$@$O%I%i%$%VA4BN$b0lIt$b%^%&%s%H$b$5$l$F$$$^$;$s$7!"(J
Secondary IDE $@$N%P%9>e$NM#0l$N%I%i%$%V$G$9!#(J
ATAPI CD-ROM $@%I%i%$%V$O(JPrimary$@$N%P%9$K$D$J$,$C$F$$$^$9(J.

$@7WB,BP>]$H$7$?%7%9%F%`$N35MW(J:
	OS:FreeBSD2.2.5R(F00F-patched)
	Motherboard:ASUSTEK P/I-P55T2P4
	CPU:intel Pentium 133MHz.
	2ndCache:512KB.
	MainMemory:EDO 64MB.
	HDD:IBM DHEA-34330.
	CD-ROM: ATAPI, attached as Primary Slave.
	PCI-CHIPSET:
		chip0 <Intel 82439> rev 3 on pci0:0
		chip1 <Intel 82371SB PCI-ISA bridge> rev 1 on pci0:7:0
		chip2 <Intel 82371SB IDE interface> rev 0 on pci0:7:1

$@<BB,CM(J:
======================================================================
	wd? $@%3%s%U%#%.%e%l!<%7%g%s%Q%i%a%?(J flags: 0x0000

wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <IBM-DHEA-34330>
wd0: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (wd2): <IBM-DHEA-34330>
wd2: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S

	$@B,DjCM(J: dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	-------------------------------------------------------
	ibs=1b  :61.4 Mbytes in 40.95 secs (1.50 Mbytes/sec)
	ibs=2b  :65.5 Mbytes in 22.42 secs (2.92 Mbytes/sec)
	ibs=3b  :61.4 Mbytes in 16.43 secs (3.74 Mbytes/sec)
	ibs=4b  :65.5 Mbytes in 16.20 secs (4.05 Mbytes/sec)
	ibs=5b  :61.4 Mbytes in 14.39 secs (4.27 Mbytes/sec)
	ibs=6b  :61.4 Mbytes in 13.83 secs (4.44 Mbytes/sec)
	ibs=8b  :65.5 Mbytes in 13.96 secs (4.70 Mbytes/sec)
	ibs=16b :65.5 Mbytes in 12.95 secs (5.06 Mbytes/sec)
	ibs=32b :65.5 Mbytes in 12.48 secs (5.25 Mbytes/sec)
	ibs=64b :65.5 Mbytes in 12.25 secs (5.35 Mbytes/sec)
	ibs=128b:65.5 Mbytes in 12.16 secs (5.39 Mbytes/sec)
	ibs=256b:65.5 Mbytes in 12.14 secs (5.40 Mbytes/sec)
	-------------------------------------------------------

======================================================================
	wd? $@%3%s%U%#%.%e%l!<%7%g%s%Q%i%a%?(J flags: 0x00ff

wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <IBM-DHEA-34330>, multi-block-16
wd0: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (wd2): <IBM-DHEA-34330>, multi-block-16
wd2: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S

	$@B,DjCM(J: dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	-------------------------------------------------------
	ibs=1b  : 61.4 Mbytes in 41.00 secs (1.50 Mbytes/sec)
	ibs=2b  : 65.5 Mbytes in 23.87 secs (2.75 Mbytes/sec)
	ibs=3b  : 61.4 Mbytes in 18.98 secs (3.24 Mbytes/sec)
	ibs=4b  : 65.5 Mbytes in 16.84 secs (3.89 Mbytes/sec)
	ibs=5b  : 61.4 Mbytes in 14.60 secs (4.21 Mbytes/sec)
	ibs=6b  : 61.4 Mbytes in 13.90 secs (4.42 Mbytes/sec)
	ibs=8b  : 65.5 Mbytes in 13.38 secs (4.90 Mbytes/sec)
	ibs=16b : 65.5 Mbytes in 11.80 secs (5.55 Mbytes/sec)
	ibs=32b : 65.5 Mbytes in 10.45 secs (6.27 Mbytes/sec)
	ibs=64b : 65.5 Mbytes in 10.12 secs (6.47 Mbytes/sec)
	ibs=128b: 65.5 Mbytes in  9.80 secs (6.69 Mbytes/sec)
	ibs=256b: 65.5 Mbytes in  9.95 secs (6.59 Mbytes/sec)
	-------------------------------------------------------

======================================================================
	wd? $@%3%s%U%#%.%e%l!<%7%g%s%Q%i%a%?(J flags: 0x8000

wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <IBM-DHEA-34330>, 32-bit
wd0: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (wd2): <IBM-DHEA-34330>, 32-bit
wd2: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S

	$@B,DjCM(J: dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	-------------------------------------------------------
	ibs=1b  : 61.4 Mbytes in 34.89 secs (1.76 Mbytes/sec)
	ibs=2b  : 65.5 Mbytes in 19.20 secs (3.41 Mbytes/sec)
	ibs=3b  : 61.4 Mbytes in 13.08 secs (4.70 Mbytes/sec)
	ibs=4b  : 65.5 Mbytes in 12.22 secs (5.36 Mbytes/sec)
	ibs=5b  : 61.4 Mbytes in 11.06 secs (5.55 Mbytes/sec)
	ibs=6b  : 61.4 Mbytes in 11.02 secs (5.57 Mbytes/sec)
	ibs=8b  : 65.5 Mbytes in 10.46 secs (6.26 Mbytes/sec)
	ibs=16b : 65.5 Mbytes in  9.67 secs (6.78 Mbytes/sec)
	ibs=32b : 65.5 Mbytes in  9.17 secs (7.15 Mbytes/sec)
	ibs=64b : 65.5 Mbytes in  9.12 secs (7.19 Mbytes/sec)
	ibs=128b: 65.5 Mbytes in  8.93 secs (7.34 Mbytes/sec)
	ibs=256b: 65.5 Mbytes in  8.97 secs (7.30 Mbytes/sec)
	-------------------------------------------------------

======================================================================
	wd? $@%3%s%U%#%.%e%l!<%7%g%s%Q%i%a%?(J flags: 0x80ff

wdc0: unit 0 (wd0): <IBM-DHEA-34330>, 32-bit, multi-block-16
wd0: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S
wdc1 at 0x170-0x177 irq 15 on isa
wdc1: unit 0 (wd2): <IBM-DHEA-34330>, 32-bit, multi-block-16
wd2: 4134MB (8467200 sectors), 8400 cyls, 16 heads, 63 S/T, 512 B/S

	$@B,DjCM(J: dd if=/dev/rwd2 of=/dev/null ibs=??? count=???
	-------------------------------------------------------
	ibs=1b  : 61.4 Mbytes in 34.96 secs  (1.76 Mbytes/sec)
	ibs=2b  : 65.5 Mbytes in 22.55 secs  (2.91 Mbytes/sec)
	ibs=3b  : 61.4 Mbytes in 14.30 secs  (4.30 Mbytes/sec)
	ibs=4b  : 65.5 Mbytes in 13.33 secs  (4.92 Mbytes/sec)
	ibs=5b  : 61.4 Mbytes in 11.08 secs  (5.55 Mbytes/sec)
	ibs=6b  : 61.4 Mbytes in 11.02 secs  (5.57 Mbytes/sec)
	ibs=8b  : 65.5 Mbytes in  9.67 secs  (6.78 Mbytes/sec)
	ibs=16b : 65.5 Mbytes in  7.51 secs  (8.73 Mbytes/sec)
	ibs=32b : 65.5 Mbytes in  6.45 secs (10.17 Mbytes/sec)
	ibs=64b : 65.5 Mbytes in  6.44 secs (10.18 Mbytes/sec)
	ibs=128b: 65.5 Mbytes in  6.44 secs (10.18 Mbytes/sec)
	ibs=256b: 65.5 Mbytes in  6.44 secs (10.18 Mbytes/sec)
	-------------------------------------------------------

======================================================================
