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Date: Mon, 21 May 2001 11:10:35 +0900 (JST)
Message-Id: <200105210210.LAA79290@kani.mitsuya.nuem.nagoya-u.ac.jp>
From: Tokuhiro SUGIURA <toku@mitsuya.nuem.nagoya-u.ac.jp>
To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: <86bsoq66wr.wl@cheerful.com>
References: <200105180244.LAA70390@kani.mitsuya.nuem.nagoya-u.ac.jp> <86bsoq66wr.wl@cheerful.com>
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Subject: [FreeBSD-users-jp 61646] Re: too slow ata (Re: SOHO PC-RAID10)
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$B?y1:$G$9!%(B

> > tagged queueing $B$O%G%#%9%/B&$@$1$G$J$/%3%s%H%m!<%i$N%5%]!<%H$b(B
> > $BI,MW$J$N$G$9$+!)(B
> 
> commit log$B$K$"$C$?$h$&$K!$(BPromise$B$N%3%s%H%m!<%i$O(Btag$B4X78$N%3%^%s%I$rAw(B
> $B$k$H5$@d$7$^$9!%(Bata-disk.c$B$K(BPromise$B=|$1$N%3!<%I$,$"$j$^$9$+$i!$$=$3$r(B
> $B%Q%9$7$F$_$k$HMF0W$KBN46$G$-$^$9!%(B($B0UL#(B: $B%V!<%H$7$^$;$s(B)

$B8+$F$_$^$7$?!%(B
$B$H$$$&$3$H$O!$(BPromise Ultra100$B$G$O!$(Btags=1 $B$K$O$J$s$N8z2L$b$J$+$C$?(B
$B$H$$$&$3$H$G$9$M!%(B
$B<B83$G$O(B wc=1 $BJB$N8z2L$,=P$F$$$?$h$&$K5-21$7$F$$$^$9$,!$?.Xa@-(B0$B$G$9$M!%(B

> softupdates$B$,(Bconsistency$B$rJ]>Z$7$F$$$k$N$K!$%G%#%9%/$,(Bwrite caching$B$7(B
> $B$F$$$F$O0UL#$,$"$j$^$;$s$+$i!$!V%G%U%)%k%H$O0BA4$K$7$F$*$$$F!$%A%e!<%K(B
> $B%s%0$O0UL#$rM}2r$7$F$+$i!W$H$$$&$3$H$G!$$o$6$o$6(Bwc=0$B$K$J$j$^$7$?!%%I%i(B
> $B%$%P$NF0:n$KLdBj$,$"$C$?$o$1$G$O$"$j$^$;$s!%(B

$BG<F@$7$^$7$?!%(B
$B8e$O!$(Bwc=1 $B$G$"$k$3$H$,!$(Bwrite 30MB/s $B$@$9$?$a$K$OIT2D7g$+$I$&$+!)(B
$BB>$NJ}K!$G$O0Y$7$($J$$$N$+!)$H$$$&$3$H$,5?Ld$G$9!%(B

$B$G!$@hDx;W$$=P$7$?$N$G$9$,!$(BWindows2000$B$G$b%I%i%$%V$N%W%m%Q%F%#$G(B
$B%i%$%H%-%c%C%7%e$N(B on, off $B$,$G$-$^$9$M!%(B
$B%G%U%)%k%H$G(B on $B$J$N$G?($k$3$H$,$J$+$C$?$N$G$9$,!$(B
off $B$K$7$F$_$k$H!$$d$O$j(B 10MB/s $B$KM^$($i$l$F$7$^$$$^$9!%(B

$B$H$$$&$3$H$G!$(B30MB/s $B=P$9$K$O!$(Bwc=1 $B$,I,?\$N$h$&$G$9$M!%(B
$B$9$C$-$j$7$^$7$?!%(B


wc=1 $B$G$b!$%G%#%9%/$O2K$K$J$C$?$i%G!<%?%U%i%C%7%e$7$F$/$l$k$s(B
$B$G$9$h$M!D!)(B

> > $B!t$H3NG'$r<h$k$?$a$K(B tags=1 $B$G(B bonnie $B<B9TCf$K(B kernel panic$B!$(B
> > $B!t$=$N8e!$FsEY$H(B boot $B$7$J$/$J$j$^$7$?!D!%(B
> > $B!t(BHPT$B$N$;$$$@$H?.$8$?$$!D!%(B
> 
> $B$R$c$"!%;d$b:G6a(Bphk$B@h@8$Nf+$KVH$C$F7J5$$h$/(B/$B$r%U%CHt$P$7$?=j$G$9!%$3$A(B
> $B$i$O860x$,$o$+$C$F$$$k$N$G!$2?$i:#8e?4G[$9$k$3$H$O$J$$$N$G$9$,!$(Bbonnie
> $B$G(Bpanic$B$9$k$N$O$+$J$j%$%d$G$9$M!%!VIi2Y$r$+$1$k$HMn$A$k!W$H$$$&>I>u$O(B
> $B1}!9$K$7$F0U30$J$H$3$m$K860x$,$"$C$?$j$7$F!%(B

$B$I$&$d$i(B SMP $B$K$7$F$$$FG.K=Av$7$F$?$N$bMm$s$G$?$h$&$G$9!%(B
$B2K$J$H$-$K2CG.$7J|Bj$NCO5e$KM%$7$/$J$$(B SMP $B$O$J$s$H$+$J$i$J$$$s$G$7$g$+!%(B
$BB?>/%Q%U%)!<%^%s%9$r5>@7$K$7$F$G$bNd$($F$F$/$l$?J}$,@:?@1R@8>e$b(B
$B$$$$$N$G$9$,!D!%(B

----
Tokuhiro SUGIURA
$B;0=EBg3X>pJs=hM}%;%s%?!<(B

