| 1 |
#include <stdio.h> |
| 2 |
#include <assert.h> |
| 3 |
#include <string.h> |
| 4 |
#include <time.h> |
| 5 |
#include <sys/time.h> |
| 6 |
#include <sys/types.h> |
| 7 |
#include <sys/socket.h> |
| 8 |
#include <sys/ioctl.h> |
| 9 |
#include <math.h> |
| 10 |
#include <X11/Xlib.h> |
| 11 |
|
| 12 |
#include "lzf.h" |
| 13 |
//#include "fastlz.c" |
| 14 |
|
| 15 |
typedef unsigned long tval; |
| 16 |
typedef unsigned long long stamp64; |
| 17 |
|
| 18 |
extern inline tval stamp(void) |
| 19 |
{ |
| 20 |
tval tsc; |
| 21 |
asm volatile("rdtsc" : "=a" (tsc) : : "edx"); |
| 22 |
return tsc; |
| 23 |
} |
| 24 |
|
| 25 |
extern inline tval measure(tval t) |
| 26 |
{ |
| 27 |
tval tsc; |
| 28 |
asm volatile("rdtsc" : "=a" (tsc) : : "edx"); |
| 29 |
if (tsc>t) |
| 30 |
return tsc-t; |
| 31 |
else |
| 32 |
return t-tsc; |
| 33 |
} |
| 34 |
|
| 35 |
#define DSIZE 2821120 |
| 36 |
|
| 37 |
unsigned char data[DSIZE], data2[DSIZE*2], data3[DSIZE*2]; |
| 38 |
|
| 39 |
int main(void) |
| 40 |
{ |
| 41 |
tval s; |
| 42 |
tval si[1000]; |
| 43 |
int i, l, j; |
| 44 |
int min = 1<<30; |
| 45 |
int lp; |
| 46 |
char buf[8192]; |
| 47 |
int p[2]; |
| 48 |
|
| 49 |
pipe (p); |
| 50 |
|
| 51 |
FILE *f = fopen ("data", "r"); |
| 52 |
fread (data, DSIZE, 1, f); |
| 53 |
fclose (f); |
| 54 |
|
| 55 |
for (lp = 0; lp < 100000; lp++) { |
| 56 |
s=stamp(); |
| 57 |
|
| 58 |
kill (0, 23); |
| 59 |
// write (p[1], &p, 1); |
| 60 |
// read (p[1], &i, 4); |
| 61 |
|
| 62 |
si[0]=measure(s); |
| 63 |
|
| 64 |
//j = lzf_decompress (data2, l, data3, DSIZE*2); |
| 65 |
|
| 66 |
printf ("\r%10d (%d) ", si[0], l); |
| 67 |
if (si[0] < min && si[0] > 0) |
| 68 |
{ |
| 69 |
printf ("\n"); |
| 70 |
min = si[0]; |
| 71 |
} |
| 72 |
|
| 73 |
fflush (stdout); |
| 74 |
|
| 75 |
//assert (memcmp (data, data3, DSIZE) == 0); |
| 76 |
} |
| 77 |
return 0; |
| 78 |
} |
| 79 |
|
| 80 |
|
| 81 |
|
