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From: Seigo Tanimura <tanimura@tanimura.dyndns.org>
To: FreeBSD-users-jp@jp.FreeBSD.org
In-Reply-To: <20031029.150334.68483539.okuyamak@dd.iij4u.or.jp>
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cc: Seigo Tanimura <tanimura@tanimura.dyndns.org>
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Date: Fri, 31 Oct 2003 11:13:54 +0900
X-Sequence: FreeBSD-users-jp 77079
Subject: [FreeBSD-users-jp 77079] Re: over 4GB mem (PAE)
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$BC+B<$G$9!#(B

On Wed, 29 Oct 2003 15:03:34 +0900,
  Kenichi Okuyama <okuyamak@dd.iij4u.or.jp> said:

okuyamak> $B$&!<$s!#(BNFS server $B$H$+$r=q$/>l9g$O$&$l$7$$$+$b!#%U%!%$%k$N%$%a!<%8(B
okuyamak> $B$rJ*M}%a%b%j$K%-%c%C%7%e$9$k$o$1$@$1$I!"!V(BHDD$B$+$i$N%$%a!<%8$r%-%c%C(B
okuyamak> $B%7%e$7$?$$!W!V%-%c%C%7%e%$%a!<%8$r(BNIC$B7PM3$G30$KAw$j=P$7$?$$!W(B($B$"$k$$(B
okuyamak> $B$O5UJ}8~$G$b$=$&$@$m$&$1$I(B)$B>l9g!"<B$OJ*M}%a%b%j$OI,MW$@$1$I2>A[%"%I(B
okuyamak> $B%l%9$OI,MW$"$j$^$;$s$h$M!#$=$&$$$&6u4V$r4IM}$9$k$N$K!D!#(B

$B<B$O$3$l!"JLJ}LL$+$i<{MW$,$"$C$?$j$7$^$9!#$@$$$VA0$K!"(Bbio buffer $BMQ$N(B
$B%"%I%l%96u4V$,69$/$F(B(*1)$B:$$C$?$3$H$,$"$j$^$7$?!#$G!";n$7$K%+!<%M%k$N%"(B
$B%I%l%96u4VA4BN$r;H$o$;$k$h$&$K$7$F$_$?$s$G$9$,!"$9$k$H:#EY$O(B bio
buffer $B$h$j$b>.$5$$%5%$%:$N%a%b%j$rB??t(B alloc $B$7$?>l9g$K%"%I%l%96u4V$,(B 
fragment $B$r5/$3$7$F(B bio buffer $B$,(B alloc $B$7$E$i$/$J$k$H$$$&LdBj$,=P$F$-(B
$B$^$9(B($B$H%D%C%3$^$l$?(B)$B!#(B

(*1) $B%a%b%j$r(B 4GB $B@Q$s$G$b(B 100MB $B$rD6$($J$+$C$?$h$&$J5-21$"$j!#(B

$B$=$N;~$K(B phk $B$,!"!V(BI/O $BCf$O(B bio buffer $B$r(B unmap $B$7$F!"$=$N%"%I%l%96u4V(B
$B$rL@EO$;$J$$$+$J$!!W$H$$$C$F$?$s$G$9$M!#$3$l$J$i!"(BI/O $B$,40N;$7$F<B:]$K(B 
bio buffer $B$NCf?H$r(B CPU $B$,FI$_=q$-$G$-$k$h$&$K$J$k$^$G%"%I%l%96u4V$r;H(B
$B$o$J$/$F:Q$_$^$9!#(BI/O $B$KMW$9$k;~4V$O(B CPU $B$,(B bio buffer $B$K%"%/%;%9$9$k(B
$B;~4V$h$j$b$:$C$HD9$$$N$G!"L5BL$J%"%I%l%96u4V$,$+$J$j:o$l$=$&$J5$$,$7$^(B
$B$9!#(BCPU $B$,D>@\(B I/O $B$K4X$o$l$J$$$N$G!"(BDMA $B$H$+$,I,?\$K$J$k$G$7$g$&$,(B...

# $B%+!<%M%k$N%"%I%l%96u4V$GG:$s$@?HJ,$H$7$F$O!"(B2GB $B$N6u4V$,B-$j$J$$$H$$(B
# $B$&$N$,lTBt$JG:$_$K8+$($^$9(B :)


$B$*$^$1!"$b$7(B kernel $B$+$i(B user process $B$N%"%I%l%96u4V$,8+$($J$/$F$b$h$$(B
(copyin() $B$d(B copyout() $B$J$I$NNc30$r=|$1$PDL>o$O8+$($kI,MW$O$J$$(B)$B$J$i$P!"(B
user process $B$H(B kernel $B$KJL!9$N%"%I%l%96u4V$rMQ0U$7$F!"$=$l$>$l$G(B 4GB
$B;H$o$;$k<j$b$"$j$^$9!#$?$@$7!"(BIntel $B$N(B CPU $B$@$H%"%I%l%96u4V$ND%$jD>$7(B
$B$,9b$/$D$/$N$GIaDL$O$d$i$J$$$HJ9$-$^$7$?!#(BUltraSPARC $B$H$+$O$3$l$,0B2A(B
$B$K$G$-$k$N$G!"Nc$($P(B sun4u $B>e$N(B Solaris $B$O%+!<%M%k$N%"%I%l%96u4V$r(B
user process $B$H$O40A4$KJLJ*$K$7$F$$$k$=$&$G$9!#(B

-- 
Seigo Tanimura <tanimura@tanimura.dyndns.org> <tanimura@FreeBSD.org>
