pancurster

Latency Comparison Numbers
--------------------------
L1 cache reference                            0.5 ns
Branch mispredict                             5   ns
L2 cache reference                            7   ns             14x L1 cache
Mutex lock/unlock                            25   ns
Main memory reference                       100   ns             20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy              3,000   ns
Send 1K bytes over 1 Gbps network        10,000   ns    0.01 ms
Read 4K randomly from SSD*              150,000   ns    0.15 ms

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#include <limits.h>		/* for CHAR_BIT */

#define BITMASK(b) (1 << ((b) % CHAR_BIT))
#define BITSLOT(b) ((b) / CHAR_BIT)
#define BITSET(a, b) ((a)[BITSLOT(b)] |= BITMASK(b))
#define BITCLEAR(a, b) ((a)[BITSLOT(b)] &= ~BITMASK(b))
#define BITTEST(a, b) ((a)[BITSLOT(b)] & BITMASK(b))
#define BITNSLOTS(nb) ((nb + CHAR_BIT - 1) / CHAR_BIT)
(If you don't have <limits.h>, try using 8 for CHAR_BIT.)
Here are some usage examples. To declare an ``array'' of 47 bits:

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/*
 * My MEM-TEST-SUITE based on Michael Barr code
 */

/* badanie zwarc miedzy nogami */
int mem_short_test(U8* saddr, int size)
{
    char buf[256];
    U8 pattern = 0xAA;
    int addr_mask = size-1;

pancurster

do {                                             \
    pcb->next = *&tcp_bound_pcbs;                            \
    *(&tcp_bound_pcbs) = pcb;                                \
    tcp_timer_needed();                            \
  } while (0)

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var foo = function() {
    if (typeof foo.i == 'undefined') {
        foo.i = 0;
    }

    ++foo.i;

    return [ function() {
                 return --foo.i;
             },

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#include <stdio.h>
#include <stdlib.h>

void setbit(int* data, char from, char len, int val)
{
    unsigned int b = ~0;
    b >>= sizeof(int)*8 - len;
    *data &= ~(b << from-len);
    *data |=  (val << from-len);
}

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    uint b = 0;
    uchar k = 0;
    uchar dop = 0;
    uchar last_reg = 0;
    i = 0;
    uchar reg = 0;
    // Przepisywanie wartosci do rejestrow
    /*
    for (k=0; k<4; ++k) {
        uchar pelne = roz[k] / 8;

pancurster

setInterval(function(){
    $.ajax({ url: "server", success: function(data){
        //Update your dashboard gauge
        salesGauge.setValue(data.value);
    }, dataType: "json"});
}, 30000);

(function poll(){
   setTimeout(function(){
      $.ajax({ url: "server", success: function(data){

pancurster

#include <malloc.h>
#include <string.h>
#include <stdio.h>

#define for_each(i, list)		\
	for(i = list; 			\
		i != NULL; 		\
		i = i->next)

struct lista {

pancurster

<form name="userinfo" method="get" action="info.html">
  <p>Please give us your information, so that we can send
  you spam.</p>
  <p>Name: <input type="text" name="name"/></p>
  <p>E-Mail: <input type="text" name="email"/></p>
  <p>Sex: <select name="sex">
            <option>Male</option>
            <option>Female</option>
            <option>Other</option>
          </select></p>