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Date: Fri, 18 May 2001 23:58:12 +0900
Message-ID: <86bsoq66wr.wl@cheerful.com>
From: FUJISHIMA Satsuki <sf@FreeBSD.org>
To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: <200105180244.LAA70390@kani.mitsuya.nuem.nagoya-u.ac.jp>
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Subject: [FreeBSD-users-jp 61617] Re: too slow ata (Re: SOHO PC-RAID10)
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At Fri, 18 May 2001 11:44:36 +0900 (JST),
Tokuhiro SUGIURA wrote:
> $B%F%9%H$O$9$Y$F3F%1!<%V%k$K%G%#%9%/0l$D$H$$$&>u67$G9T$$$^$7$?$,!$(B
> $B3N$+$K(B tags=1 $B$H$9$k$HB.$/$J$k$N$G$9!%(B4.3R$B$NOC$G$9$,!%(B
> bonnie $B$N(B Writing intelligently $B$N9`L\$J$I$O!$$[$s$H$K7WB,$7$F$$$k$N$+!)(B
> $B$H$$$&$0$i$$0l=V$GDL2a$7$F$$$-$^$9!%(Bwc=1 $B$G$O!$$A$g$C$HBT$A$^$9!%(B
> tagged queueing $B$N%5%]!<%H$5$l$?(BSCSI$B$N%I%i%$%V$G$b(B
> $B$3$s$J46$8$@$C$?$h$&$J5$$,$7$^$9!%(B

$B%Y%s%A%^!<%/$K$O8z2L$,=P$d$9$$$N$+$b$7$l$^$;$s!%;d$O(Bport$B$r%3%s%Q%$%k$9(B
$B$kB.EY$K6=L#$,$"$k$N$G!$(Bmake World$B$r%F%9%H$K;H$$$^$7$?!%(B

/usr/ports/x11/XFree86-4 && \time make DISTRIB=1 >log 2>&1

$B$H$d$C$FB,$C$?$H$3$m$K$h$k$H!$(B
Promise Ultra66/DPTA353750x2
     1671.59 real      1381.41 user       265.67 sys
HPT368(tags=0)/DPTA353750x2
     1601.45 real      1323.29 user       251.67 sys
HPT368(tags=1)/DPTA353750x2
     1594.64 real      1320.13 user       249.11 sys

DC390U/DCAS34330x2($B;29M(B: WCE=1)
     1648.56 real      1304.73 user       266.14 sys

$B$9$Y$F(B5$B2s9T$C$?J?6Q$G$9!%(Bmulti user$B$G9T$C$?$N$G$"$^$j?.MQ$G$-$^$;$s$,!$(B
$B798~$O$o$+$k$H;W$$$^$9!%(BHPT368+tags=1$B$NHyL/$J9bB.2=$,$[$[$($^$7$$$H$$(B
$B$&$+!D!D!%(BHPT368$B$,(BPromise Ultra66$B$h$jAGD>$KB.$$$H$$$&$N$O0U30$G$7$?!%(B
$B0BJ*%P%s%6%$!%$"$H(BDCAS$B$OCY$$$1$l$I(BCPU$BIi2Y$,>.:|(B1$BGUJ,>/$J$$$H$+!%(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)

> $B$b$H$b$H$N(B 8MB/s $B$,0[>o$G$9$h$M!%(B
> $BC1=c7W;;$G%G%#%9%/0l$D$"$?$j(B 4MB/s $B$G!$(Bwc=1 $B$G(B 24MB/s$B!%(B
> $B8e<T$OBEEv$G$9$M!%(B

$B$O$$!%$H$$$C$F$b!$(Bvinum stripe$B$7$?%Q!<%F%#%7%g%s$r(Brawio -w$B$9$k$H!$AjJQ(B
$B$o$i$:!$(Bwc=1$B$G$b(Bsequential write$B$,(B10MB/s$B$7$+=P$^$;$s!%(Bdd$B$@$H$:$C$HB.$$$N(B
$B$G!$$^$"$=$&$$$&$b$N$+$H!%(B

> $B$=$l$H$b!$0JA0%G%U%)%k%H$G(B wc=1 $B$H$7$F$$$?$b$N$r!$IT6q9g$,$G$k>l9g$b$"$k(B
> $B$H$$$&$3$H$G(B wc=0 $B$5$l$F$7$^$C$?$H9M$($k$Y$-$G$7$g$&$+!%(B
> $B$=$l$J$i0B?4$7$F!$(Bwc=1 $B$G$-$k$N$G$9$,!%(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

> $B!t$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

-- 
FUJISHIMA Satsuki
