mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
|
|
/* spew out a thoroughly gigantic file designed so that bzip2
|
|
can compress it reasonably rapidly. This is to help test
|
|
support for large files (> 2GB) in a reasonable amount of time.
|
|
I suggest you use the undocumented --exponential option to
|
|
bzip2 when compressing the resulting file; this saves a bit of
|
|
time. Note: *don't* bother with --exponential when compressing
|
|
Real Files; it'll just waste a lot of CPU time :-)
|
|
(but is otherwise harmless).
|
|
*/
|
|
|
|
#define _FILE_OFFSET_BITS 64
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
/* The number of megabytes of junk to spew out (roughly) */
|
|
#define MEGABYTES 5000
|
|
|
|
#define N_BUF 1000000
|
|
char buf[N_BUF];
|
|
|
|
int main ( int argc, char** argv )
|
|
{
|
|
int ii, kk, p;
|
|
srandom(1);
|
|
setbuffer ( stdout, buf, N_BUF );
|
|
for (kk = 0; kk < MEGABYTES * 515; kk+=3) {
|
|
p = 25+random()%50;
|
|
for (ii = 0; ii < p; ii++)
|
|
printf ( "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" );
|
|
for (ii = 0; ii < p-1; ii++)
|
|
printf ( "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" );
|
|
for (ii = 0; ii < p+1; ii++)
|
|
printf ( "ccccccccccccccccccccccccccccccccccccc" );
|
|
}
|
|
fflush(stdout);
|
|
return 0;
|
|
}
|