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Message-Id: <20041112.173534.71092932.okuyamak@dd.iij4u.or.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
From: Kenichi Okuyama <okuyamak@dd.iij4u.or.jp>
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Date: Fri, 12 Nov 2004 17:35:34 +0900
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Subject: [FreeBSD-users-jp 81788] Re: FreeBSD
 =?ISO-2022-JP?B?GyRCISIbKEI=?= Linux
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$B1|;3$G$9!#(B

>>>>> "MH" == Murakami Hiroshi <freebsd@tmca.ac.jp> writes:
>> # $B;d$,J9$$$?:G$b$&$s$6$j$9$kBf;l$O!"(B
>> # $B!V(BLinux$B$,F14|=q$-9~$_$r$7$J$$$N$O$o$+$C$?!#(BBSD $B$,$9$k$N$b$o$+$C$?!#(B
>> #   $B$H$3$m$G!"(BBSD $B$O!XF14|=q$-9~$_$r$7$J$,$i(B Linux $B0J>e$N@-G=$r=P$9!Y(B
>> #   $B$N$+$M(B? $B=P$;$J$$$J$i(B Linux $B$r=$@5$7$F!"F14|=q$-9~$_$r$7$D$D!"@-(B
>> #   $BG=Nt2=$r$5$;$J$$$G$/$l$J$$$+!W(B
>> # $B$H$$$&$b$N$G$9!#%P%0=$@5$KH<$&!V?tCM7k2L$NNt2=!W$O!"%W%m%0%i%^!<$N(B
>> # $B$;$$$G$"$k!"$H$$$&$s$G$9$M!#@'Hs!"$I$&$d$k$H(B1$B2sE>(B8msec$B$+$+$k(BHDD$B$r(B
>> # $B;H$C$F!"(B7usec $B$G1~Ez$,JV$C$F$-$F!"$7$+$b$A$c$s$H=q$1$F$$$k(BFS$B$r:n$k(B
>> # $B$N$+!"65$($FM_$7$$$b$N$@$o!#(B
MH> $B$?$7$+$K(BHDD$B$G$OL5M}$G$9$,!"$&$s$H$*6b$r@Q$a$P!"H>F3BN%G%#%9%/$rGc$C$FIU$1$k$3$H$G(B
MH> $B=q$-9~$_$N9bB.2=$,=PMh$k$h$&$G$9!#(B


$B$&$s!#$G$b!"$=$l$G$b$d$O$jL5M}!#(B

7usec $B$G(B 4kbyte $B$r=q$/$K$O!"(B
4k / ( 7* (1/1,000,000)) = 571428.57 kbytes/sec
                         = 558Mbytes/sec
$B$H$$$&%a%G%#%"$G%a%b%j$HJ*M}%G%P%$%9$r$D$J$0I,MW$,$"$k!#(B

$B$3$l$OBg;(GD$K(B 4.36Gbit/sec$B$H$$$&;v$K$J$k!#$N$G(B FC $B$G$bL5M}$G!"(BiSCSI
$B$r(B10GEthernet$B>e$GF0$+$5$J$/$F$O$$$1$J$$!#(B
PCI $B%\%H%k%M%C%/$H$+$NJ}$,@h$KMh$k!#(B


$B$H$$$&$o$1$G!";d$O<B$O$3$&8@$&$N$r$d$C$F$$$^$9!#(B

http://developer.osdl.jp/projects/doubt/

http://developer.osdl.jp/projects/doubt/diskio/index.html
$B$N7k2L$,$J$+$J$+%/%i%/%i$9$k$b$N$,$"$j$^$9!#(B


$B@'Hs(B FreeBSD $B$G$b$3$l$r=q$1$F$_$?$$$H;W$C$F$$$k$s$G$9$,!D$J$+$J$+(B
$B5!:`$,<+M3$K$J$k%?%$%_%s%0$,!D!#(B
---- 
$B1|;3(B $B7r0l(B[$BGaGX2q(B:No.0x00000001]
#URL http://www.dd.iij4u.or.jp/~okuyamak/
#$B:#F|$N$*8@MU!X(BHacker's Delight$B!Y(B:$BOBLu$,=P$?$,!"0UL#$,$"$k$N$+(B?  $B$"(B
#$B$l$O!V5-=R8@8l!W$N$;$$$GFq$7$$$o$1$G$O$J$$$N$G!"1Q8lHG$G$bBg:9$J$$(B
#$B$H;W$&$s$@$,(B($BOBED1Q0l@h@8$N?dA&$N<-$O=|$/(B)$B!#(B
