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#include <stdio.h>
#include <stdlib.h>
int main(void)
{
char c;
char *po;
printf("Hello, World!\n");
po = (char *)malloc(sizeof(char) * 1024*1024*1024*2.7);
if (po == NULL) exit(1);
printf("input char > ");
scanf("%c", &c);
return 0;
}
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gcc test.c
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# ./a.out
Hello, World!
input char >
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# ps aux | grep a.out
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 3850 0.0 0.0 2834720 444 pts/5 S+ 04:34 0:00 ./a.out
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#include <stdio.h>
#include <stdlib.h>
int main(void)
{
char c;
char *po;
int i;
printf("Hello, World!\n");
po = (char *)malloc(sizeof(char) * 1024*1024*1024*2.7);
if (po == NULL) exit(1);
for( i=0; i<1024*1024*1024; i++ ){
po[i] = 'c';
}
printf("input char > ");
scanf("%c", &c);
return 0;
}
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gcc test2.c -o test2
# ./test2
Hello, World!
input char >
ps aux | grep test2
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 3933 65.2 33.9 2834720 1049020 pts/5 S+ 04:46 0:08 ./test2
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for( i=0; i<1024*1024*1024; i++ ){
po[i] = 'c';
}
for( i=0; i<1024*1024*1024*2.7; i++ ){
po[i] = 'c';
}
$ links http://cran.r-project.org/mirrors.html
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tar xvf R-2.8.0.tar.gz
cd R-2.8.0
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./configure
R is now configured for x86_64-unknown-linux-gnu
Source directory: .
Installation directory: /usr/local
C compiler: gcc -std=gnu99 -g -O2
Fortran 77 compiler: gfortran -g -O2
C++ compiler: g++ -g -O2
Fortran 90/95 compiler: gfortran -g -O2
Obj-C compiler:
Interfaces supported: X11
External libraries: readline
Additional capabilities: iconv, MBCS, NLS
Options enabled: shared BLAS, R profiling
Recommended packages: yes
configure: WARNING: you cannot build DVI versions of the R manuals
configure: WARNING: you cannot build PDF versions of the R manuals
configure: WARNING: I could not determine a browser
configure: WARNING: I could not determine a PDF viewer
- ¤Ç¤âPDF¤â¥Ö¥é¥¦¥¶¤â¥¤¥ó¥¹¥È¡¼¥ë¤·¤Æ¤Ê¤¤¤«¤é¤³¤ÎÄ´»Ò¡¥¤Ï¤¡¤¡
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make
LANG=C LC_ALL=C make check
make install
$ uname -a
Linux mac_name 2.6.26-gentoo-r4 #1 SMP Mon Dec 8 19:55:40 JST 2008 $
x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105470 5.7 350000 18.7 350000 18.7
Vcells 119344 1.0 786432 6.0 455167 3.5
> a <- matrix(0, 1024*1024)
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105476 5.7 350000 18.7 350000 18.7
Vcells 1167921 9.0 1625057 12.4 1167940 9.0
> a <- matrix(0, 1024*1024*100)
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105476 5.7 350000 18.7 350000 18.7
Vcells 104976945 801.0 117230563 894.4 106025542 809.0
> a <- matrix(0, 1024*1024*200)
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105476 5.7 350000 18.7 350000 18.7
Vcells 209834545 1601.0 330671920 2522.9 314692166 2401.0
> rm(list="a")
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105611 5.7 350000 18.7 350000 18.7
Vcells 119369 1.0 264537536 2018.3 314692166 2401.0
> a <- matrix(0, 1024*1024*300)
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105615 5.7 350000 18.7 350000 18.7
Vcells 314692170 2401.0 347285542 2649.6 314692190 2401.0
> rm(list="a")
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105611 5.7 350000 18.7 350000 18.7
Vcells 119369 1.0 277828433 2119.7 314692322 2401.0
> a <- matrix(0, 1024*1024*400)
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 105615 5.7 350000 18.7 350000 18.7
Vcells 419549770 3201.0 462891046 3531.6 419549790 3201.0
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- ¡Öps¡×¤Î·ë²Ì
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
admin 17254 7.9 97.0 3336556 2391852 pts/2 S+ 08:59 1:26 /usr/local/lib64/R/bin/exec/R
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