NetNews Usenet Archive 1993 #1/NN_1993_1.iso/spool/fj/sys/sun/1261

Internet Message Format | 1993-01-10 | 8.7 KB

Xref: sparky fj.sys.sun:1261 fj.sys.news:772
Path: sparky!uunet!ccut!news.u-tokyo.ac.jp!wnoc-tyo-news!sranha!sran265!katsu
From: [e-mail] (WATANABE katsuhiro)
Newsgroups: fj.sys.sun,fj.sys.news
Subject: Re: open 257 files in a process (Re: Open file par process)
Message-ID: <[e-mail]>
Date: 11 Jan 93 00:49:58 GMT
References: <[e-mail]>
Sender: [e-mail]
Followup-To: fj.sys.sun
Distribution: fj
Organization: Software Research Associates, Inc.,Japan
Lines: 144
In-reply-to: [e-mail]'s message of 10 Dec 92 06:14:40 GMT

$B!J(BNewsgroups: $B$KCm0U!K(B
$B!!%U%)%m!<$NCY$5$J$i(B *.jp $B$G==;X$K(B$B$O$$$k$G$"$m$&EOn4!w#S#R#A$G$9!#(B

$B!!%*!<%W%s$G$-$k%U%!%$%k$N?t$rA}$d$9$?$a$K(B limit $B$r$$$8$k7o$K$D$$$F(B$B$G$9!#(B
$B!!(Blimit descriptors(RLIMIT_NOFILE) $B$O(B SunOS 4.1 $B$+$iF3F~$5$l$?$b$N$@$H(B
$B;W$$$^$9$,!"(BNEWS-OS $B$G$b(B R4.2 $B$+$i$3$l$,F3F~$5$l$?$h$&$G$9$M!#(B

$B!!(Blimit $B$r;H$$$3$J$9$K$O!"EvA3$J$,$iBP>]$H$J$C$F$$$k;q8;$NCN<1(B$B$,(B
$BI,MW$G$9!#%U%)%m!<$K$"$C$?(B limit(1) $B$d(B csh(1) $B$O$b$A$m$s!"(B
setrlimit(2) $B$NN`$b!"$3$NE@$G$OLr$KN)$D(B$B$H$O;W$($^$;$s!#(B

$B5-;v(B <[e-mail]> $B$G(B
[e-mail] (Masahiro Yanagisawa) $B$5$s$$$O$/(B
> $B>/$7A0$K(B limit $B$G(B $B#1%W%m%;%9$,(Bopen$B$G$-$k?t$r(B 256 $B$KA}$d$9$H$$$&(B
> $B$*OC$,$"$j$^(B$B$7$?$h$M!#(B

> $B;d$b6=L#$r;}$C$?$s$G$9$,!"(B
> csh> limit
> descriptors     64
> $B$3$N#6#4$C$F$$$&?t;z$O2?(B$B=h$G%G%U%)%k%H@_Dj$5$l$k$s$G$7$g$&!)(B

> $B%Q%i%a!<%?$rJQ$($F(B reconfig $B$7$F$_$?$s$G$9$,!"(B
> 64, 256 $B$H$$(B$B$&%G%U%)%k%H$KJQ2=$OL5$$$h$&$G$7$?!#(B

$B!!(B/vmunix $B$N(B main() $B$G(B swapper(process 0) $B$r:n$k$H$-$K@_Dj$5$l!"(B$B$3$l$,(B
$B7Q>5$5$l$F$$$/$h$&$G$9!#!J(BNEWS-OS 4.2 $B$bF1$8!K(B
$B!!0lIt$G?.$8$i$l$F$$$k$h$&$J!"(Binit $B$,@_Dj$9$k$H(B$B$+!"(Bkernel $B$,(B init $B$K(B
$BBP$7$F@_Dj$9$k$H$$$&$N$O8m$j$@$H;W$$$^$9!#(B
$B!!$3$NCM$,5$$KF~$i$J$1$l$P!"(Breconfig $B$J$I$G$OJQ99$G$-$J$$$N$G!"(B
/vmunix $B$N%P%$%J%j$K%Q%C%A$rEv$F$k$3$H$K$J$j$^$9!#!J@)8B$r6/$a$k(B
$BJ}8~$O4J(B$BC1$G$9!#$7$+$7?t$rA}$d$9J}8~$b4JC1$+$I$&$+$OITL@$G$9!#!K(B

$B!J$D$$$G$J$,$i!"(Bdescriptors $B0J30$N(B limit $B$O(B$B$I$3$G@_Dj$5$l$k$+$H$$$&(B
$B5?Ld$,EvA3$o$-$*$3$k$3$H$G$7$g$&!#(BNEWS-OS $B$N(B $B>l9g!"(Bmain() $B$G(B
process 0 $B$KBP$9(B$B$k(B limit $B$,0lC6A4$F(B RLIMIT_INFINITY $B$K@_Dj$5$l!"(B
$B$5$i$K(B stacksize, memoryuse, memoryuse $BEy$,(B vminit() $B$GE,Ev$K(B
$B:F@_Dj$5$l$k$h$&$G$9!#(BSun OS $B$G$O$I$&$J$N$+$OCN$j$^$;$s!#>\$7$$J}(B
$B65$($F2<$5$$!#!K(B

$B!!(Breconfig $B$G$OJQ99$,H?1G$5$l$J$$7o$OJL$N5-;v(B
<[e-mail]> $B$G@bL@$7$F$*$-$^$7$?!#(B
$B!!%+!<%M%k$N%=!<%9>e$G$I$N$h$&$K(B 64 $B$H$$$&$N$,I=8=$5$l$F$$$k$+$H$$$&(B
$BLdBj$J$i$P!"(BNOFILE_IN_U $B$r;2>H$9(B$B$k$HA[A|$7$F$$$^$9!#(Bhard limit $B$N(B
$BJ}$O(B NOFILE $B$G$O$J$$$G$7$g$&$+!#$b$A$m$s$3$&$7$?A':w$O2f!9%f!<%6!<$K(B$B$O(B
$B$"$^$j0UL#$,$J$$$+$b$7$l$^$;$s!#(B


> csh> limit descriptors 256 $B$O=PMh$F$b!"(B
> csh> limit descriptors 257 $B$O(B
> limit: descriptors: Can't set limit
> $B$H$J$C$F$7$^$$$^$9!#(B

$B!!$3$3$G!"(B"Can't set limit" $B$H$$$&7Y9p$,=P$?$N$O!"(Bhard limit $B$r1[$($F(B
$B@_Dj$7$h$&$H$7$?$+$i$K2a$.$J$$$H;W$$$^$9!#(B
$B!!$G$O(B limit -h $BEy$G(B hard limit $B$NJ}$r(B 256 $B$h$jBg$-$/$G$-$k$+$H$$$&$H!"(B
$B$G$-$^$;$s!#(Bsetrlimit(2) $B%7%9%F%`%3!<%kFb$G!"(Bdescriptor $B$N(B
hard limit $B$r(B 256 $B$h$jBg$-$/@_Dj$7$h$&$H$7$?$H$-$O!"(B256 $B$K@_Dj$7$F(B
$B$7$^$&$h$&$K$J$C$F$$(B$B$k$+$i$G$9!#!J(BNEWS-OS 4.2 $B$G$bF1$8!K(B

$B!!$=$b$=$b!"(BSunOS $B$*$h$S(B NEWS-OS $B$N0JA0$N%P!<%8%g%s$d!"$3$l$i$N(B
$B8;N.$G$"$k(B 4.3BSD $B$K$O!"(Bdescriptors $B$N(Blimit $B$,$"$j$^$;$s$G$7$?!#(B
(NET-2 release $BEy$K$D$$$F$O$o$+$j$^(B$B$;$s!#!K%W%m%;%9$4$H$N(B descriptor$B$O!"(B
u area $BFb$N(B u.u_ofile[NOFILE] $B$H$$$&(B *$B8GDjD9(B* $B$NG[Ns$K$H$i$l$F$*(B$B$j!"(B
$B$=$b$=$b(B descriptor $B$N;q8;$r@)8B$9$k$3$H$K0UL#$,$J$+$C$?$N$G$9!#(B
$B!!$5$F!"(BUNIX $B$,9-$^$k$&$A!"%U%!(B$B%$%k$rBt;3(B open $B$9$kBg5,LO$J(B
$B%"%W%j%1!<%7%g%s$,=P8=$7$F!"$3$NG[Ns$r3HD%$9$kI,MW$,@8$8$k$h$&$K(B
$B$J$C$?$N(B$B$G$7$g$&!#$H$3$m$,!"%+!<%M%kMQ$N%9%?%C%/NN0h$r05Gw$7$J$$$h$&!"(B
user $B9=B$BN$O>.$5$$$3$H$,K>$^$l$F$$$^$9(B$B!#$=$l$J$N$K!"$I$l$@$1;H$o$l$k$+(B
$B$o$+$i$J$$(B descriptors $BMQ$KIaCJ$+$iBg$-$JNN0h$r<h$C$F$7$^$&$N$O(B
$B46?4(B$B$7$^$;$s!#$H$$$&$o$1$G!"Bg$-$J8GDjNN0h$r3NJ]$9$k$N$G$O$J$/!"(B
$BF0E*$K3d$jEv$F$k$3$H$,9M$($i$l$?$b$N$H;W(B$B$$$^$9!#(B
$B!!$3$&$7$F(B *$BF0E*$KJQ2=(B* $B$9$k$h$&$K$J$C$?$3$H$G!"$O$8$a$F(B descriptor $B$N(B
limit $B$N0UL#$,@8$^$l$?(B$B$N$G$O$J$$$G$7$g$&$+!#(B

$B!!$D$$$G$K!"8=:_$N<BAu$G$NFCD'$r$$$/$D$+L@$i$+$K$7$F$*$-$^$9!#(B

[1] descriptor table $B$NF0E*$J3d$jEv$F$NJ}K!(B
$B!!%*!<%W%s$7$F$$$k%U%!%$%k$N(B descriptor $B$N:GBg$NHV9f(B u.u_lastfile $B$,(B
64 $BL$K~$N;~$O5lMh$I$*$j(B u area $BFb$K%F!<%V%k$,$"$j$^$9!#(B64 $B0J>e$K(B
$B$J$k$H$-$K$O$8$a$FF0E*$J3d$jEv$F$,5/$3(B$B$j!"(Bu area $B$N30It!J%+!<%M%k$N(B
$B%G!<%?NN0h!K$K%F!<%V%k$,CV$+$l$k$h$&$K$J$j$^$9!#!J(BSunOS, NEWS-OS
$BN>J}$H(B$B$b!K(B
$B!!(Bdescriptors $B$N(B soft limit $B$,IaCJ$O(B 64 $B$G$"$k$N$b!"E,Ev$J?t$r(B
$BWs0UE*$K;}$C$F$-$?$o$1$G$O$J$/!"$3(B$B$&$7$?M}M3$K$h$k$b$N$G$7$g$&!#(B

  $B$A$J$_$K!"$3$N$h$&$JITO"B3$J07$$$r<u$1$F$$$kM}M3$G$9$,!D!D!D!D(B
#ifdef $BA[A|(B
    $B!!(Bdescriptor table $B$OK\Mh$J$i(B u area $BFb$K$"$k$Y$-$b$N$G!"(Bswap out
    $B$5$l$k$Y$-$b$N$G$9$,(B$B!"F0E*$K3d$jEv$F$?(B descriptor $BMQ$NNN0h$b(B
    swap out $B$7$J$1$l$P$J$i$J$$$G$7$g$&$+!)$b$A$m$s$3$l$OLLE](B$B$J$N$G(B
    swap out $B$7$?$/$"$j$^$;$s$,!"%7%9%F%`Fb$GF0$$$F$$$k%W%m%;%9A4It$N(B
    descriptor table $B$,>o(B$BCs$9$k$N$b9%$^$7$/$J$$$G$7$g$&!#$=$3$G!"(B
    descriptor $B$r(B 64 $B8D0J2<$7$+;H$o$J$$BgItJ,$N%W%m%;%9$O=>Mh(B$B$I$*$j(B
    u area $B$K%F!<%V%k$r3NJ]$7!"Bt;3$N(B descriptors $B$r;H$&$h$&$J0lIt$N(B
    $B%W%m%;%9$K$D$$$F$N$_!"(B$B%F!<%V%k$r%+!<%M%k$N%G!<%?NN0h$KJz$(9~$`(B
    $B$h$&$K$9$k$H$$$&8=:_$N@oN,$,A*Br$5$l$?$N$G$O$J$$$G$7$g$&(B$B$+!)(B
    $B!!$7$+$7!"$b$7$+$7$?$i!"8e$G=R$Y$k$h$&$J%P%$%J%j8_49@-$NLdBj$K(B
    $B$9$.$J$$$+$b$7$l$^$;$s!#(B
#endif /* $BA[A|(B */

$B!!(BSUN OS 4.1 $B0J9_$N>l9g$O(B u.u_lastfile $B$,0lC6(B 64 $B0J>e$K$J$k$H!"(B
$B0J9_$O$h$7$s$P(B 64 $BL$K~$KLa$k$3$H$,$"$C$F$b!"%W%m%;%9$,@8$-;D$k8B$j(B
$BF0E*$K3d$jEv$F$i$l$?NN0h$,;H$$B3$1$i$l$^$9!#0lJ}(B NEWS-OS 4.2 $B$N>l9g!"(B
64 $BL$K~$KLa$k$3$H$,$"$l$P!":F$S(B u area $BFb$NNN0h$,;H$o$l$^$9!#(B

[2] $B3d$jEv$F$NC10L(B
$B!!(B$BF0E*$K3d$jEv$F$k$H$O$$$(!"(B64 $BHV0J>e$N(B descriptor $B$r:n$k$H$-$K(B
$B0lEY$K(B 256 $B8DJ,$r3d$jEv$F$F$7$^$&<BAu$K(B$B$J$C$F$$$^$9!#!J(BSunOS,
NEWS-OS $BN>J}$H$b!K(B
$B!!$D$^$j!"(Blimit descriptors 64 $B$^$?$O(B 256 $B$@$1$,B>$K$/$i$Y$F(B$BFCJL$J(B
$B0UL#$r;}$D$3$H$K$J$j$^$9!#(B

$B!!(B64, 256 $B0J30$NH>C<$J?t$X$N@_Dj$G$b!"%7%9%F%`%U%!%$%k%F!<%V%k$r(B
$BC1(B$B0l$N%W%m%;%9$G;H$$2L$?$7$K$/$/$J$k8z2L$,$"$k$H$$$&<gD%$b$"$k$+$b(B
$B$7$l$^$;$s!#$7$+$7!"%7%9%F%`$N%*!<%W(B$B%s%U%!%$%k9=B$BN$H%W%m%;%9Fb$N(B
descriptor $B$,K\Mh$O#1BP#1$K$OBP1~$7$J$$$3$H$r4U$_$k$H!"$3$l$O$d$O$j(B
$B6v(B$BA3$NI{:nMQ$K2a$.$J$$$H;d$O9M$($F$$$^$9!#(B

[3] $B%P%$%J%j8_49@-$NJ];}$N$?$a$N=hCV(B
$B!!%F!<%V%k$r3HD%$9$k$?(B$B$a$K$OIaDL$K9M$($k$H(B user $B9=B$BN$NJQ99$r$9$k(B
$B$3$H$K$J$j$^$9$,!"$3$l$O9-$$HO0O$K1F6A$,5Z$S!"$J$+$s$:$/(B$B%P%$%J%j!<$N(B
$B8_49@-$X$N1F6A!J(Bcore $B%U%!%$%k!"(Bps, pstat, adb, dbx $BB>$,1F6A$r<u$1$k!K(B
$B$OLq2p$JLdBj$H$J$C(B$B$F$7$^$&$3$H$G$7$g$&!#(B
$B!!(BSunOS $B$b(B NEWS-OS $B$b!"$3$NLdBj$O$&$^$/2sHr$5$l$F$$$^$9!#(B

(a) NEWS-OS $B$N>l9g(B
$B!!(BNEWS-OS 4.2 $B$N(B <sys/user.h> $B$K$O!"%P%$%J%j8_49@-$r0U<1$7$?;]$N(B
$B%3%a%s%H$,$D$$$F$$$^$9!#(B
$B!!(Bu area $BFb(B$B$N(B descriptor table $B$G$"$k(B u.u_ofile $B$NBg$-$5$d0LCV$O(B
$BJQ99$;$:!"3HD%J,$G$"$kF0E*$K3NJ]$7$?%F!<%V%k$X$N(B$B%]%$%s%?$O(B
u area $B$N=*C<$KG[CV$9$k$3$H$G!"(B4.1 $B0JA0$H$N4V$N%P%$%J%j8_49@-$r(B
$BJ]$D$h$&$K$7$F$"$k$h$&$G$9(B$B!#(B

(b) SunOS $B$N>l9g(B
$B!!$J$s$H!"(BSUN OS 4.0.x $B$N;~$+$i(B NOFILE $B$rBg$-$/$9$k;~$N$3$H$r9M$($F!"(B
$B$9$G$K(B user $B9=B$BN$@$1$O@h$s$8$F3HD%$,;\$5$l!">-Mh$N%P!<%8%g%s$H$N4V$N(B
$B%P%$%J%j8_49@-$KHw$($k$h$&$K$J$C$F$$$^$7(B$B$?!#(B
$B!!(B4.0.x $B$N(B <sys/user.h> $B$K$O!"(Bkmem $B$r;2>H$9$k%3%^%s%I$N!"!J(B4.0.x $B$+$i(B
$B8+$l$P!K>-Mh$K$*$1$k%P%$%J(B$B%j!<8_49@-$K$D$$$F$N%3%a%s%H$,$D$$$F$$$?(B
$B$b$N$G$7$?!#(B

--
$BEOn49n9(!w#S#R#A%=%U%H%&%'%"9)3X8&5f=j(B