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Comparing liblzf/bench.c (file contents):
Revision 1.7 by root, Fri Feb 8 13:20:26 2008 UTC vs.
Revision 1.12 by root, Sun May 30 05:46:56 2010 UTC

1#include <stdio.h> 1#include <stdio.h>
2#include <assert.h> 2#include <assert.h>
3#include <string.h> 3#include <string.h>
4#include <time.h> 4#include <time.h>
5#include <sys/time.h> 5#include <sys/time.h>
6#include <sys/times.h>
6#include <sys/types.h> 7#include <sys/types.h>
7#include <sys/socket.h> 8#include <sys/socket.h>
9#include <sys/mman.h>
8#include <sys/ioctl.h> 10#include <sys/ioctl.h>
11#include <sys/stat.h>
12#include <sys/resource.h>
9#include <math.h> 13#include <math.h>
14#include <signal.h>
10#include <X11/Xlib.h> 15#include <X11/Xlib.h>
11 16
12#include "lzf.h" 17#include "lzf.h"
13//#include "fastlz.c" 18//#include "fastlz.c"
14 19
30 return tsc-t; 35 return tsc-t;
31 else 36 else
32 return t-tsc; 37 return t-tsc;
33} 38}
34 39
40static void sigu (int signum)
41{
42}
43
44int eventfd(unsigned int,int);
45
35#define DSIZE 2821120 46#define DSIZE 2821120
36 47
37unsigned char data[DSIZE], data2[DSIZE*2], data3[DSIZE*2]; 48unsigned char data[DSIZE], data2[DSIZE*2], data3[DSIZE*2];
38 49
39int main(void) 50int main(void)
43 int i, l, j; 54 int i, l, j;
44 int min = 1<<30; 55 int min = 1<<30;
45 int lp; 56 int lp;
46 char buf[8192]; 57 char buf[8192];
47 int p[2]; 58 int p[2];
59 int evfd = eventfd (0, 0);
60 long ctr = 1;
61 struct stat sbuf;
48 62
49 pipe (p); 63 pipe (p);
50 64
51 FILE *f = fopen ("data", "r"); 65 FILE *f = fopen ("data", "r");
52 fread (data, DSIZE, 1, f); 66 fread (data, DSIZE, 1, f);
53 fclose (f); 67 fclose (f);
54 68
69 signal (SIGURG, sigu);
70
55 for (lp = 0; lp < 100000; lp++) { 71 for (lp = 0; lp < 1000000; lp++) {
56 s=stamp(); 72 s=stamp();
57 73
74 //struct timespec ts; clock_gettime (CLOCK_THREAD_CPUTIME_ID, &ts);
75 //printf ("%9ld\n", ts.tv_nsec);//D
76 //struct rusage usage; getrusage (RUSAGE_SELF, &usage);
77 //struct tms tms; times (&tms);
78
58 kill (0, 23); 79 //kill (0, SIGURG);
59// write (p[1], &p, 1); 80 //write (evfd, &ctr, 8);
60// read (p[1], &i, 4); 81 //read (evfd, &ctr, 8);
82 //write (p[1], &buf, 1);
83 //read (p[0], &buf, 4);
84 //stat ("/etc/passwd", &sbuf);
85 //struct timeval tv; gettimeofday (&tv, 0);
86 //void *x = mmap (0, 16384, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE,-1,0);
87
88 l = lzf_compress (data, DSIZE, data2, DSIZE*2);
89 assert(l);
90
91 j = lzf_decompress (data2, l, data3, DSIZE*2);
92 assert (j == DSIZE);
61 93
62 si[0]=measure(s); 94 si[0]=measure(s);
63 95
64 //j = lzf_decompress (data2, l, data3, DSIZE*2); 96 assert (!memcmp (data, data3, DSIZE));
65 97
66 printf ("\r%10d (%d) ", si[0], l); 98 printf ("\r%10d (%d) ", si[0], l);
67 if (si[0] < min && si[0] > 0) 99 if (si[0] < min && si[0] > 0)
68 { 100 {
69 printf ("\n"); 101 printf ("\n");

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