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Comparing liblzf/bench.c (file contents):
Revision 1.2 by root, Sun May 30 19:27:12 2004 UTC vs.
Revision 1.14 by root, Sun Mar 27 23:53:23 2011 UTC

1#include <stdio.h> 1#include <stdio.h>
2#include <unistd.h>
2#include <assert.h> 3#include <assert.h>
3#include <string.h> 4#include <string.h>
5#include <time.h>
6#include <sys/time.h>
7#include <sys/times.h>
8#include <sys/types.h>
9#include <sys/socket.h>
10#include <sys/mman.h>
11#include <sys/ioctl.h>
12#include <sys/stat.h>
13#include <sys/resource.h>
14#include <math.h>
15#include <signal.h>
16#include <X11/Xlib.h>
4 17
5#include "lzf.h" 18#include "lzf.h"
19//#include "fastlz.c"
6 20
7typedef unsigned long tval; 21typedef unsigned long tval;
8typedef unsigned long long stamp64; 22typedef unsigned long long stamp64;
9 23
10extern inline tval stamp(void) 24extern inline tval stamp(void)
… …
22 return tsc-t; 36 return tsc-t;
23 else 37 else
24 return t-tsc; 38 return t-tsc;
25} 39}
26 40
41static void sigu (int signum)
42{
43}
44
27#define DSIZE 1000000 45#define DSIZE 2821120
46#define DSIZE 32768
28 47
29unsigned char data[DSIZE], data2[DSIZE*2], data3[DSIZE*2]; 48unsigned char data[DSIZE], data2[DSIZE*2], data3[DSIZE*2];
30 49
31int main(void) 50int main(void)
32{ 51{
33 tval s; 52 tval s;
34 tval si[1000]; 53 tval si[1000];
35 int i, l, j; 54 int i, l, j;
36 int min = 1<<30; 55 int min = 1<<30;
37 int lp; 56 int lp;
57 char buf[8192];
58 int p[2];
59 long ctr = 1;
60 struct stat sbuf;
61
62 pipe (p);
38 63
39 FILE *f = fopen ("data", "r"); 64 FILE *f = fopen ("data", "r");
40 fread (data, DSIZE, 1, f); 65 fread (data, DSIZE, 1, f);
41 fclose (f); 66 fclose (f);
42 67
68 signal (SIGURG, sigu);
69
43 for (lp = 0; lp < 100; lp++) { 70 for (lp = 0; lp < 1000000; lp++) {
44 s=stamp(); 71 s=stamp();
72
73 //struct timespec ts; clock_gettime (CLOCK_THREAD_CPUTIME_ID, &ts);
74 //printf ("%9ld\n", ts.tv_nsec);//D
75 //struct rusage usage; getrusage (RUSAGE_SELF, &usage);
76 //struct tms tms; times (&tms);
77
78 //kill (0, SIGURG);
79 //write (evfd, &ctr, 8);
80 //read (evfd, &ctr, 8);
81 //write (p[1], &buf, 1);
82 //read (p[0], &buf, 4);
83 //stat ("/etc/passwd", &sbuf);
84 //struct timeval tv; gettimeofday (&tv, 0);
85 //void *x = mmap (0, 16384, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE,-1,0);
86
45 l = lzf_compress (data, DSIZE, data2, DSIZE*2); 87 l = lzf_compress (data, DSIZE, data2, DSIZE*2);
88 assert(l);
89
46 j = lzf_decompress (data2, l, data3, DSIZE*2); 90 j = lzf_decompress (data2, l, data3, DSIZE*2);
91 assert (j == DSIZE);
92
47 si[0]=measure(s); 93 si[0]=measure(s);
94
95 assert (!memcmp (data, data3, DSIZE));
48 96
49 printf ("\r%10d (%d) ", si[0], l); 97 printf ("\r%10d (%d) ", si[0], l);
50 if (si[0] < min && si[0] > 0) 98 if (si[0] < min && si[0] > 0)
51 { 99 {
52 printf ("\n"); 100 printf ("\n");
53 min = si[0]; 101 min = si[0];
54 } 102 }
55 103
56 fflush (stdout); 104 fflush (stdout);
57 105
58 assert (memcmp (data, data3, DSIZE) == 0); 106 //assert (memcmp (data, data3, DSIZE) == 0);
59 } 107 }
60 return 0; 108 return 0;
61} 109}
62 110
63 111

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