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Message-Id: <20050407.220744.59464393.maro@flu.hn.org>
To: FreeBSD-users-jp@jp.FreeBSD.org
From: Kazumaro Aoki <ka@flu.hn.org>
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Date: Thu, 07 Apr 2005 22:07:44 +0900
X-Sequence: FreeBSD-users-jp 83966
Subject: [FreeBSD-users-jp 83966] slow writing to ad1-ad3 on FreeBSD5R
Sender: owner-FreeBSD-users-jp@jp.FreeBSD.org
X-Originator: ka@flu.hn.org
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+050320

FreeBSD5R$B$K(B4R$B$+$i0\9T$7$F$+$i!"BN46$G!"$^$?(BPC$B8DBNKh$N7WB,$G!"$J$s$H$J(B
$B$/(BATA slave $B$N(Bdisk$B$N=q$-9~$_$,CY$$$h$&$J5$$,$9$k$J$!$H;W$C$F$$$?$N$G$9(B
$B$,!"$A$g$&$I:G6a(BPC$B$r9XF~$7$?$3$H$b$"$C$F!"K\3J2TF/$9$kA0$KA4$/F1$8%O!<(B
$B%I9=@.$G(B4R$B$H(B5R$B$N0c$$$r%F%9%H$9$k$3$H$,=PMh$?$N$G!"Js9p$7$^$9!#(B

ATA channel 0$B$N(Bmaster$B$H(Bslave$B$K(BHD$B$r@\B3$7$F!"=q$-9~$_!"$*$h$SFI$_9~$_$r(B
$B7WB,$7$?7k2L$,<!$N$H$*$j$G$9!#(B
     write               read
 master    slave     master   slave
50.4MB/s  51.6MB/s  52.8MB/s 54.5MB/s UDMA100 UFS1 FreeBSD4.11R
49.5MB/s  51.3MB/s  52.4MB/s 53.5MB/s UDMA66  UFS1 FreeBSD4.11R
31.4MB/s  31.4MB/s  28.5MB/s 29.3MB/s UDMA33  UFS1 FreeBSD4.11R
46.7MB/s  15.8MB/s  49.5MB/s 50.7MB/s UDMA100 UFS2 FreeBSD5.3R
46.6MB/s  15.8MB/s  47.4MB/s 47.9MB/s UDMA66  UFS2 FreeBSD5.3R
46.8MB/s  15.9MB/s  27.7MB/s 28.0MB/s UDMA33  UFS2 FreeBSD5.3R

ATA channel 1$B$N(Bmaster$B$H(Bslave$B$K(BHD$B$r@\B3$7!"F1MM$N7WB,$r$7$?>l9g$O<!$N$H(B
$B$*$j$G$9!#(B
     write               read
 master    slave     master   slave
51.7MB/s  52.1MB/s  53.5MB/s 54.6MB/s UDMA100 UFS1 FreeBSD4.11R
50.2MB/s  51.2MB/s  51.7MB/s 53.1MB/s UDMA66  UFS1 FreeBSD4.11R
31.4MB/s  31.2MB/s  28.4MB/s 29.2MB/s UDMA33  UFS1 FreeBSD4.11R
15.6MB/s@ 15.9MB/s  49.5MB/s 48.5MB/s UDMA100 UFS1 FreeBSD5.3R
15.8MB/s@ 15.9MB/s  47.5MB/s 48.6MB/s UDMA66  UFS1 FreeBSD5.3R
15.8MB/s@ 15.9MB/s  28.0MB/s 28.4MB/s UDMA33  UFS1 FreeBSD5.3R
15.7MB/s@ 15.8MB/s  48.7MB/s 48.8MB/s UDMA100 UFS2 FreeBSD5.3R
15.5MB/s@ 15.7MB/s  47.2MB/s 48.4MB/s UDMA66  UFS2 FreeBSD5.3R
15.6MB/s@ 15.8MB/s  27.7MB/s 28.0MB/s UDMA33  UFS2 FreeBSD5.3R
$BCm(B: @$B$G<($7$?7WB,$G$O(B
swap_pager: indefinite wait buffer: device: ad2s1f, blkno: 2, size: 4096
$B$H$$$&(Bmessage$B$,B??t=PNO$5$l$?!#(Bblkno$B$OF1$8$3$H$b$"$C$?$,0[$J$k$N$b$"$C$?!#(B

$B$d$C$Q$j!"BN46$7$F$$$?463P$O4V0c$$$G$O$J$+$C$?$h$&$G!"$7$+$b(Bslave$B$H$$(B
$B$&$N$G$O$J$/$F!"(Bad0$B$@$1$,%^%H%b$JB.EY$,$G$F!"(Bad1$B!A(Bad3$B$OCY$$$h$&$G$9!#(B
$B$7$+$b!"(Bad0$B$b!"(BUDMA33$B$K$7$F!"(B33MB/s$B0J>e=P$k$C$F$N$O2?$+JQ$G$9!#(B

$B$3$l$C$F$=$&$$$&;EMM$J$N$G$7$g$&$+!)(B
$B$=$l$H$b!";d$N@_Dj$,2?$+$*$+$7$$!)$=$l$J$i$I$&$9$l$PD>$k$s$G$7$g$&!#(B
$B$=$l$H$b4{CN$NLdBj$J$N$G$7$g$&$+!)(B

$B>.$5$J%U%!%$%k$NB??t$N=q$-9~$_$K$D$$$F$O!"(BFreeBSD5$B$G(BUFS2$B$K$J$C$F$+$iHs(B
$B>o$KB.$/$J$C$?5$$,$9$k$N$G$9$1$I!"Bg$-$J%U%!%$%k$,CY$$$h$&$J$N$G$7$?!#(B

$B$J$*!"7WB,>r7o$O<!$N$H$*$j$G$9!#(B

$B!{MxMQ%O!<%I%&%'%"$K$D$$$F(B
CPU: Pentium 4 3.0GHz [Prescott]
Motherboard: Intel S875WP1-E
main RAM: 2GB (Transcend DDR 512MB ECC PC3200$B!_(B4)
HD: Seagate ST3160021A Barracuda7200.7 (160GB/2MB)$B!_(B2
$B$=$NB>!"(BHD$B$r$D$J$$$G$$$k$N$HJL$N(BATA channel$B$K(B
$B!&(BDVD-ROM drive
PCI slot$B$K(B
$B!&(Bsound card
$B!&(BIEEE1394 card
$B$r@\B3$7$F$^$9!#(B

$B!{7WB,J}K!$K$D$$$F(B
OS$B$N%$%s%9%H!<%k(Bdisk$B$+$i(Bminimum$B$G%$%s%9%H!<%k$7$?D>8e$N>uBV$G7WB,!#(B
FreeBSD5.3R$B$G!"(BUFS1$B$r;XDj$7$?0J30$O(Bpartition$B$N@Z$jJ}$J$I$9$Y$F(Bdefault$B$N>uBV!#(B
$B=>$C$F!"(Bsoft-update$B$O(Bon$B$K$J$C$F$$$k$J$I!#(B

DMA$BE>AwB.EY$K$D$$$F$O(B
atacontrol mode 0 UDMA66 UDMA66
$B$J$I$H$7$F!"7WB,A0$K@_Dj!#(B

$B<B:]$NB.EYB,Dj$O(BRAM 2GB$B$b$"$k$N$G!"(Bcache$B$,8z$/$H$$$d$J$N$G!"(B
$B=q$-9~$_!"FI$_9~$_$K$D$$$F$=$l$>$l(B
repeat 3 dd if=/dev/zero of=16g.bin bs=128m count=128
repeat 3 dd if=16g.bin of=/dev/null bs=128m 
$B$H$7$F!"=P$F$-$?(B3$B$D$N(Bbytes/sec$B$N$&$A!"Cf4VCM$r:NMQ!#(B

$B$J$*!"(B
repeat 3 dd if=/dev/zero of=/dev/null bs=128m count=128
$B$NCf4VCM$O(B
FreeBSD4.11R: 1965.7MB/s,
FreeBSD5.3R:  1797.6MB/s
$B$@$C$?!#(B

$B@DLZOBKcO$(B
