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 FreeBSD-tech-jp@jp.FreeBSD.org; Fri, 10 May 2002 09:54:17 +0900 (JST)
Date: Fri, 10 May 2002 09:54:52 +0900 (JST)
From: Takayuki Moriyama <t.m@jp.fujitsu.com>
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$B?9;3!wIY;NDL$G$9!%$3$s$K$A$o(B
$B$5$C$=$/$NJV;v$"$j$,$H$&$4$6$$$^$9!%(B

$B!t0lIt2~9T0LCV$rJQ99$7$^$9!%(B
>>> Thu, 09 May 2002 20:02:21 +0900 $B$N9o$K(B
>>> tanimura@r.dl.itc.u-tokyo.ac.jp(Seigo Tanimura) $B;a[)$/(B
> 
> $BC+B<!w?^=q4[EE;R2=8&(B.$B4pHW(B.$BElBg(B $B$G$9!#(B
> 
> On Thu, 09 May 2002 19:20:20 +0900 (JST),
>   takayuki@venus.as.ts.fujitsu.co.jp said:

... snip ...

> takayuki> $B$=$3$G<ALd$J$N$G$9$,!$(BFreeBSD(UNIX$BA4HL!)(B)$B$G$O(Bkernel$BFbIt$G(B
> takayuki> $B$N(Bdouble$B7?$N(B 
> takayuki> $B1i;;$O=PMh$J$$$h$&$K$J$C$F$$$k$N$G$7$g$&$+!)(B
> 
> kernel$BFbIt$G$NIbF0>.?tE@1i;;$OIaDL9T$J$$$^$;$s!#0\?"@-$rB;$J$$$^$9$7!"(B
> i386$B$N>l9g$J$K$+$HLLE]$J$3$H$,$"$j$^$9(B($BB>$G$b$=$&$+$bCN$l$^$;$s$,(B)$B!#(B

$B$=$&$G$9$M!%B>$N(Bkernel$B%=!<%9$r$_$^$7$?$,(Bdouble$B7?(Bfloat$B7?$O$[$H$s$I(B
$B$D$+$o$l$F$^$;$s$G$7$?!%(B
$B!t(B/sys/i386/isa $B0J2<$G(B labpc.c $B$H(B loran.c $B$/$i$$$G$9$,!$$I$A$i$b(B
$B!t;HMQ$7$F$$$k$H$$$&N`$G$O$"$j$^$;$s$G$7$?!%(B

> $BBeBX:v$H$7$F$O!"(Bkernel$B$K$O@0?t(Bcounter$B$@$1$rMQ0U$7$F$*$-!"(Buser
> process$B$G$=$NCM$rFI$_=P$7$FIbF0>.?tE@7W;;$r9T$J$&J}K!$,$"$j$^$9!#(B
> 
> $B$I$&$7$F$b(Bkernel$B$NCf$G<B?t$r07$$$?$$>l9g$O!"8GDj>.?tE@$r;H$&$7$+$J$$(B
> $B$G$7$g$&!#(Bload average$B$N7W;;$G;H$C$F$$$^$9!#>\$7$/$O(B
> src/sys/kern/kern_synch.c$B$N(Bschedcpu()$B$K$"$j$^$9!#(B

$B$J$k$[$I!%8GDj>.?tE@$G$9$+!%(B
$B$A$g$C$HJY6/$7$F$_$^$9!%(B
$B!t(B/usr/sbin/msun $B0J2<$+$i(B sin,cos,exp$B$J$I$r(Bkernel$B$G;H$($k$h$&$K0\$7$F(B
$B!t$_$?$s$G$9$,8GDj>.?tE@$H$J$k$HFq$7$$$+$b$7$l$J$$$G$9$M!%(B


>>>>> On Fri, 10 May 2002 03:04:02 +0900
>>>>> t-ogawa@triaez.kaisei.org(OGAWA Takaya)  said:
> 
> $B>.@n$H?=$7$^$9!#(B

... snip ...

> kernel $B$G(B FPU $B$r;H$$$?$$>l9g!">/$J$/$H$b(B
> 
> - FPU $B$r;HMQCf$N(B process $B$,$"$k>l9g!"$=$N>uBV$r2u$5$J$$$h$&$K$7$J$1(B
>   $B$l$P$J$i$J$$(B
> - kernel $B$,(B FPU $B$r0.$C$?$^$^(B userland $B$X$N(B context switch $B$,5/$3$k(B
>   $B$HLLE](B
> 
> $B$H$$$&E@$KCm0U$7$J$/$F$O$J$i$J$$$N$G!"B`HrNN0h$rFH<+$KMQ0U$7!"(B 
> kernel $BFb$N$4$/C;$$6h4V$G8BDjE*$K;H$&$h$&$J7A$K$7$^$7$?!#$3$l$O(B
> i586_bcopy $B$G$bF1MM$G$7$?!#(B

kernel$B$G(Bfpu$B$N>uBV$r2u$5$:$K!J85$N>uBV$KI|85$G$-!K!$$^$?=hM}$,B>$K(B
$B0\$k$^$($K(Bfpu$B$N;HMQ$r=*$($k$3$H$,$G$-$l$P;HMQ$O2DG=$+$b$7$l$J$$$H$$$&(B
$B$3$H$G$9$+!%(B

$B$3$A$i$bJY6/$,$F$i9M$($F8+$h$&$+$H;W$$$^$9!%(B

$BC+B<$5$s!$>.@n$5$sM-1W$J>pJs$"$j$,$H$&$4$6$$$^$7$?!%(B

--
$BIY;NDL(B($B3t(B) 
$B?9;3(B $B?r85(B (Moriyama Takayuki) : t.m@jp.fujitsu.com

