`time'
------

time()
     :: $B%;%C%7%g%s3+;O$+$i8=:_$^$G$N(B CPU $B;~4V$*$h$S(B GC $B;~4V$rI=<($9$k(B

RETURN
     $B%j%9%H(B

   * CPU $B;~4V$*$h$S(B GC $B;~4V$NI=<($K4X$9$k%3%^%s%I$G$"$k(B.

   * GC $B;~4V$H$O(B, $B%,!<%Y%8%3%l%/%?$K$h$j>CHq$5$l$?$H8+$J$5$l$k;~4V(B, CPU
     $B;~4V$O(B, $BA4BN$N(B CPU $B;~4V$+$i(B GC $B;~4V$r0z$$$?;D$j$G(B, $BC10L$OIC$G$"$k(B.

   * `time()' $B$O0z?t$J$7$G(B, $B%;%C%7%g%s3+;O$+$i8=:_$^$G$N(B CPU $B;~4V(B, GC
     $B;~4V(B, $B8=:_$^$G$KMW5a$5$l$?%a%b%j$N$N$YMFNL(B,
     $B$*$h$S%;%C%7%g%s3+;O$+$i(B $B8=:_$^$G$N7P2a;~4V$NI=<($r$9$k(B.
     $B$9$J$o$A(B, `[CPU $B;~4V(B ($BIC(B), GC $B;~4V(B ($BIC(B), $B%a%b%jNL(B ($B%o!<%I(B),
     $B7P2a;~4V(B ($BIC(B)]' $B$J$k%j%9%H$rJV$9(B. 1 $B%o!<%I$ODL>o(B 4 $B%P%$%H$G$"$k(B.

   * $B7W;;$N<B9T3+;O;~(B, $B=*N;;~$N(B `time()' $B$+$i(B, $B$=$N7W;;$KBP$9$k(B CPU
     $B;~4V(B, GC $B;~4V$,$o$+$k(B.

   * $B%a%b%jNL$OB?G\D9?t$G$O$J$$$?$a(B,
     $B$"$kCM$r1[$($k$HL50UL#$JCM$H$J$k$?$a(B
     $B$"$/$^$G$bL\0B$H$7$FMQ$$$k$Y$-$G$"$k(B.

   * `ctrl()' $B$d(B `cputime()' $B$K$h$j(B `cputime' $B%9%$%C%A$,(B on
     $B$K$J$C$F$$$k>l9g$K$O(B, $B%H%C%W%l%Y%k$NJ8$r0l$D$NC10L$H$7$F(B,
     $B$=$N<B9T;~4V$,I=<($5$l$k(B. $B$7$+$7(B, $B%W%m%0%i%`$NFbIt$J$I$G(B, $BFCDj$N(B
     $B7W;;$KBP$9$k7W;;;~4V$rCN$j$?$$;~$K$O(B, `time()' $B$J$I$r;H$&(B
     $BI,MW$,$"$k(B.

   * `getrusage()' $B$,;H$($k(B UNIX $B>e$G$O(B `time()' $B$O?.Mj@-$N$"$kCM(B
     $B$rJV$9$,(B, Windows 95, 98
     $B>e$G$O;~9o$rMQ$$$k$[$+J}K!$,$J$$$?$a7P2a;~4V$=$N$b$N(B $B$,I=<($5$l$k(B.
     $B$h$C$F(B, $BBT$A>uBV$,$"$k$H(B, $B$=$l$b7P2a;~4V$K2C;;$5$l$k(B.

     [72] T0=time();
     [2.390885,0.484358,46560,9.157768]
     [73] G=hgr(katsura(4),[u4,u3,u2,u1,u0],2)$
     [74] T1=time();
     [8.968048,7.705907,1514833,63.359717]
     [75] ["CPU",T1[0]-T0[0],"GC",T1[1]-T0[1]];
     [CPU,6.577163,GC,7.221549]

$B;2>H(B
     *Note `cputime tstart tstop': cputime tstart tstop.

