From owner-FreeBSD-users-jp@jp.freebsd.org  Sun Feb  2 21:13:42 1997
Received: by jaz.jp.freebsd.org (8.8.5+2.7Wbeta4/8.7.3) id VAA15169
	Sun, 2 Feb 1997 21:13:42 +0900 (JST)
Received: by jaz.jp.freebsd.org (8.8.5+2.7Wbeta4/8.7.3) with SMTP id VAA15164
	for <FreeBSD-users-jp@jp.freebsd.org>; Sun, 2 Feb 1997 21:13:41 +0900 (JST)
Received: from ns.trl.ibm.com ([9.116.1.23]) by dino.trl.ibm.co.jp (5.65c/2.7We)
	id AA04701; Sun, 2 Feb 1997 21:16:31 +0900
Received: from ayame.trl.ibm.com by ns.trl.ibm.com (AIX 3.2/UCB 5.64/TRL4.3SRV)
	id AA111890; Sun, 2 Feb 1997 21:13:30 +0900
Message-Id: <9702021213.AA111890@ns.trl.ibm.com>
To: FreeBSD-users-jp@jp.freebsd.org
In-Reply-To: Your message of "Fri, 31 Jan 1997 20:24:24 +0900"
References: <199701311124.UAA15873@mercury.yyi.iij.ad.jp>
X-Mailer: Mew version 1.54 on Emacs 19.28.1, Mule 2.3
Mime-Version: 1.0
Content-Type: Text/Plain; charset=iso-2022-jp
Content-Transfer-Encoding: 7bit
Date: Sun, 02 Feb 1997 21:13:33 +0900
From: Kenichi Okuyama <okuyama@trl.ibm.co.jp>
Reply-To: FreeBSD-users-jp@jp.freebsd.org
Precedence: bulk
X-Distribute: distribute [version 2.1 (Alpha) patchlevel=19]
X-Sequence: FreeBSD-users-jp 9384
Subject: [FreeBSD-users-jp 9384] Re: performance on numerical calculationdependsonshells?
Errors-To: owner-FreeBSD-users-jp@jp.freebsd.org
Sender: owner-FreeBSD-users-jp@jp.freebsd.org

$B1|;3!s$"$!$d$C$H=PD%$+$i5"$C$F$-$?!w#I#B#M$G$9!#(B

>>>>> "$B;3K\(B" == shigeru  <shigeru@iij.ad.jp> writes:
furuta> $B$J$k$[$I!#$9$k$H!"1|;3$5$s$N$*$C$7$c$k$H$*$j!"%W%m%0%i%^$NKI1R:v$H$7(B
furuta> $B$F$O!"(Baccess speed $B$,MW5a$5$l$k(B longword $B0J>e$N(B data $B$O!"0lHL$K$O(B 
furuta> auto$BJQ?t$G<h$C$F$O$$$1$J$$$H$$$&$3$H$G$9$M!#(B
$B2<@n(B> $B$3$l$O(B, align$B$NLdBj$H$7$FG<F@$G$-$k$N$G$9$,(B,$B$?$7$+85$N(Bpost$B$@$H(B, static
$B2<@n(B> $B$K(B(malloc$B$G(B)$B3NJ]$9$k$H(B, auto$B$NB.$$>l9g$h$j$b(B50%$B$0$i$$Mn$A$F$$$?$h$&$J(B
$B2<@n(B> $B5$$,$7$^$9(B.
$B;3K\(B> $B$3$l$K4X$7$F$OA[A|$K$J$C$F$7$^$$$^$9$,!"(B
$B;3K\(B> 1) $B%9%?%C%/$K$H$C$?>l9g!"%9%?%C%/%l%8%9%?$r;H$C$?4V@\%"%I%l%C%7%s%0$,;H$($k(B
$B;3K\(B> $B$,!"%R!<%W$K<h$C$?>l9g!"%]%$%s%?$NCM$r%l%8%9%?$K0\$5$J$1$l$P$J$i$J$$J,$@$1$*(B
$B;3K\(B> $B$=$/$J$k!#(B
$B;3K\(B> 2) $B$"$N$0$i$$$NNL$@$H!"%9%?%C%/$K$H$C$?>l9g!"F10l%;%0%a%s%HFb$K$J$k$+$i%;%0(B
$B;3K\(B> $B%a%s%H$NA`:n$,$$$i$J$$$,!"%R!<%W$r;H$&$H0[$J$k%;%0%a%s%H4V$r9T$C$?$jMh$?$j$9(B
$B;3K\(B> $B$kJ,$@$1CY$/$J$k!#(B
$B;3K\(B> $B$C$F$N$,$"$k$N$+$J$"!#(B
$B;3K\(B> $B$G$b!"$=$b$=$b$3$s$J$3$H$,5/$3$C$F$$$k$N$+<+?.$J$$$7!"$3$l$0$i$$$G(B+20%$B$b$N:9(B
$B;3K\(B> $B$K$J$k$N$+$J$"(B?

$B$?$7$+$KC1=c$J7?$NG[NsJQ?t$,B?$9$.$F!"(BHeap $B%"%I%l%9$r%l%8%9%?$K%m!<(B
$B%I$9$k<j4V$,$?$/$5$s$+$+$C$F$$$k$H$O;W$$$^$9$,!"$=$l$@$1$NM}M3$G$"$l(B
$B$[$ICY$/$J$k$H$O;W$($^$;$s!#(B

malloc $B$,$I$N$h$&$J(B alignment $B$G%a%b%jNN0h$r<h$k$N$+$K$h$C$F$O!"7k6I(B 
double word access $BLdBj$,H/@8$9$k$H;W$$$^$9!#$h$C$F(B malloc $B$NJ}$,(B 
auto $B$N:GB.;~$h$j$bCY$+$C$?$H$7$F$bIT;W5D$G$O$J$$$N$+$bCN$l$^$;$s!#(B

mmap() $B$O%Z!<%8C10L$G$9$N$G!"#4(Bkbyte $B$K(B align $B$5$l$k$O$:$G$9!#(B
malloc $B$GNN0h$r<h$kBe$o$j$K(Bmmap $B$r;H$C$F$_$F!"7k2L$rD4$Y$k$N$O(B
$B$I$&$G$7$g$&!)(B
----
$B1|;3(B $B7r0l(B@$BEl5~4pAC8&5f=j(B.$BF|K\#I#B#M(B($B3t(B)[$BFzLn#F#C(B:No.0000000015]
http://karin.ip.titech.ac.jp/~okuyama/index.html
#$B:#F|$N$*8@MU!X%a%b%j<~$j$,2u$l$F$$$^$9!Y(B:$B$=$l$G$O%=%U%H$G#H#W$N(B
#$B%P%0$J$I8+$D$1$i$l$k$o$1$,$J$$!#2?$,F0$$$F$k$+H=$i$J$$$s$@$+$i!#(B
