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References: <199701291517.AAA07011@puutalo.geo.titech.ac.jp>
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Date: Thu, 30 Jan 1997 13:59:19 +0900
From: =?ISO-2022-JP?B?GyRCOzNLXBsoQg==?=  =?ISO-2022-JP?B?GyRCTFAbKEI=?=  <shigeru@iij.ad.jp>
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Subject: [FreeBSD-users-jp 9266] Re: performance on numerical calculationdependson
	 shells?
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$B$J$s$+?tCM1i;;$N8x3+9V:B$r3+$$$F$$$k$h$&$J5$$K$J$C$F$-$?(B^^;)
#$B;d$N@lLg$8$c$J$$$s$@$1$I!D(B

>>>>> "$B>.NS(B" == Naoki Kobayashi <shibata@geo.titech.ac.jp> writes:
$B>.NS(B> login shell $B$r(B bash $B$K$7$?>l9g$b7WB,$7$F$$$^$9!%0lNc$G$9!%(B
$B>.NS(B> bash# /usr/bin/time ./nbody
$B>.NS(B>       105.56 real       105.19 user         0.02 sys
$B>.NS(B> bash# tcsh
$B>.NS(B> tcsh% /usr/bin/time ./nbody
$B>.NS(B>        48.71 real        48.63 user         0.02 sys
$B>.NS(B> $B$3$N>l9g$b7WB,;~4V$N:F8=@-$O$"$j$^$9!%$d$O$j(B 1:2 $B$NHfN($G$9!%(B

$B$3$NCJ3,$G!"(B1:2$B$NHfN(0J30$K5$$E$-$^$;$s$+(B?
$B0JA0$K=q$+$l$?(B tcsh -> bash$B$N>l9g!"(B

$B>.NS(B> tcsh% /usr/bin/time ./nbody
$B>.NS(B>       104.32 real       104.08 user         0.03 sys
$B>.NS(B> tcsh% bash
$B>.NS(B> bash# /usr/bin/time ./nbody
$B>.NS(B>        50.37 real        50.24 user         0.00 sys

$B$G$7$?$+$i!"(Bshell$B$N<oN`$K4X78$J$/!"(Bshell1 -> shell2$B$N>l9g$K7WB,;~4V$NHfN($,(B
2:1$B$H$J$j!"8e$+$i<B9T$7$?>l9g$NJ}$,B.$$$N$G$O$J$$$+$H$$$&$3$H$,?dB,$G$-$^$9!#(B
$B$3$3$G;W$$=P$7$FM_$7$$$N$,!"(BFreeBSD$B$O(Bdynamic link library$B$r;HMQ$7$F$$$k$H$$(B
$B$&$3$H$G$9!#(B
$B$G$9$+$i!"(Bdynamic link library$B$,%-%c%C%7%e$5$l$F$$$k$+$I$&$+$,1F6A$7$F$$$J$$(B
$B$+$H8@$&$3$H$r9M$($F$_$F$b$$$$$s$8$c$J$$$G$7$g$&$+!#(B
#$B3N$+$a$kJ}K!$O4JC1$G$9!#(B($B=IBj(B > $B>.NS$5$s(B:-)

>> $B>.NS(B> $B$3$NJU$j$OITJY6/$GJ,$+$j$^$;$s(B(^^;
>> $B$d$C$F$$$k$3$H$+$i$9$k$H!"Hr$1$FDL$l$J$$$3$H$G$9!#$3$N:]JY6/$9$k$3$H$r$*(B
>> $B4+$a$7$^$9!#$$$d$7$F2<$5$$!#(B
$B>.NS(B> $B$*$A$*$AJY6/$7$F9T$-$?$$$H;W$$$^$9!%;3K\$5$s$O$I$N$h$&$J652J=q$r;H$o$l(B
$B>.NS(B> $B$F$$$?$N$G$7$g$&$+!)(B

$B;d$O?tCM7W;;$,@lLg$8$c$"$j$^$;$s$,!"(BOS$B$K$O6=L#$,$"$C$F$$$m$$$mK\$rFI$s$G$$$^(B
$B$7$?$7!">pJs9)3X2J$G$7$?$N$G(BOS$B$N<x6H$b$"$j$^$7$?!#(B
$B$@$+$i(BOS$B$NK\$rGc$C$F$-$F%a%b%j4IM}$d%W%m%;%94IM}$NJU$j$rFI$s$@>e$G!"(BFreeBSD
$B$,$I$&$d$C$F$$$k$+$r(B4.3 BSD$B$d(B4.4 BSD$B$NK\$GM}2r$9$l$P$$$$$s$8$c$J$$$G$7$g$&$+!#(B
#4.3/4.4 BSD$B$NK\$G$b(BOS$B$N652J=q$H$7$F$O;H$($^$9$7!#(B

$B$"$H$O!"?tCM7W;;$r$9$k>l9g$NCm0U$r=q$$$F$"$k$h$&$JK\$rC5$9$+!"Bg7?7W;;5!$G%W(B
$B%m%0%i%`$N:GE,2=$r$7$?$3$H$,$"$k$h$&$J@h@8$rJa$^$($FJ9$/$H$$$&$F$b$"$j$^$9!#(B
$B8&5f$G?tCM7W;;$r$d$C$F$$$k$h$&$J8&5f<<$G<~$j$K$=$s$J$3$H$rCN<1$H$7$F$G$bCN$C(B
$B$F$$$k?M$,$$$J$$$H$$$&$N$O9M$($i$l$^$;$s!#(B
#$B8m:9$d$3$&$$$C$?:GE,2=$NLdBj$O@dBP$I$3$+$G$V$D$+$kLdBj$G$9$+$i!#(B

>> CPU+memory+cache+OS+etc$B$NAm9gE*$J@-G=$r7W$C$F$$$k$@$1$G$9(B:-)$B$G$9$+$i!"$=(B
>> $B$s$JCM$GHf3S$7$F$bL50UL#$G$9!#(B
$B>.NS(B> $B;d$?$A$H$7$F$O(B CPU $B$N@-G=$H$$$&$h$j$O(B OS, compiler $B$b4^$a$?%7%9%F%`A4(B
$B>.NS(B> $BBN$NBgBN$N%Q%U%)!<%^%s%9$,CN$j$?$$$N$G$9!%B(J*E*$G$9$N$G!%(B

$B$=$N>l9g$G$b!"$I$3$,%M%C%/$K$J$j$=$&$J$N$+$,$o$+$C$F$J$$$H4V0c$C$?I>2A$r$7$F(B
$B$7$^$&2DG=@-$,$"$j$^$9!#(B
F1$B$r0lHLF;O)$GAv$i$;$F!V$3$l$,(BF1$B$N@-G=$@!W$H$$$C$F$b$=$l$O0UL#$,$J$$$3$H$G$7$g(B?
----
$B;3K\(B $BLP(B	<shigeru@iij.ad.jp>				I hate UNICODE :-)
