redis,shmop,shm,SwooleTable各种共享内存读写效率对比

Redis写与shmop相差两个数量等级 读也相似  都不受php内存限制
shm比redis慢

redis是多台服务器，其它都是单台


结论shmop>swoole\table>shm>redis
0.00072097778320312>0.0016679763793945>0.041023015975952>0.14361214637756
https://www.cnblogs.com/wt645631686/p/9146600.html

代码正文双击正文可选择全部

1[代码][php]优势单程序并发安全，随创建进程销毁，对swooletable进行10000次写入测试最少是0.0016679763793945秒

$arr = array( 1 => 
  array ('22' => '4146','attacksdfdsfdsddddddddddd' => '5.45','atk_class' => '神圣级','wufang' => '4.9','def_class' => '超神级','cefang' => '4.9','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizzinesssdfdsfdsfdsfdsfds_class' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F',
  ),
  2 => 
  array ('id' => '414ddffff7','attack' => '5.45','atk_class' => '神圣级','wufang' => '4.95','def_class' => '超神级','cefang' => '4.95','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizziness_clsdfdsfdsfdsfdsfdsass' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F',
  ));

$str = json_encode($arr);
$size = strlen($str);

$table = new Swoole\Table(1024);
$table->column('name', swoole_table::TYPE_STRING, $size);
$table->create();
$start = microtime(true);
for($i = 0; $i<10000; $i++) {
	$table->set(1, array('name'=>$str));
}
echo "\n".(microtime(true) - $start);
echo "\n".$table->get('1', 'name');
echo "\n".$size;

2[代码][php]优势多台并发安全，对redis进行10000次写入测试最少是0.14361214637756秒

$arr = array( 1 => 
  array ('id' => '4146','attacksdfdsfdsddddddddddd' => '5.45','atk_class' => '神圣级','wufang' => '4.9','def_class' => '超神级','cefang' => '4.9','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizzinesssdfdsfdsfdsfdsfds_class' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F',
  ),
  2 => 
  array ('id' => '414ddffff7','attack' => '5.45','atk_class' => '神圣级','wufang' => '4.95','def_class' => '超神级','cefang' => '4.95','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizziness_clsdfdsfdsfdsfdsfdsass' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F',
  ));

$str = json_encode($arr);
$redis = new Redis();
$redis->connect('127.0.0.1',6379);
$start = microtime(true) ;

for($i = 0; $i<10000; $i++) {
    $redis->set('key', $str);
}
echo microtime(true) - $start;
echo "\n".$redis->get('key');

3[代码][php]优势加锁后单台多程序并发安全，对shmop进行10000次写入测试最少是0.00072097778320312秒

$str = json_encode($arr);

$key =1;//ftok(__FILE__, 'h'); 只能是存在的文件转为数字
$size = strlen($str);

$signal = sem_get($key); # 请求信号控制权
if(sem_acquire($signal)){//获取一把锁  如厕所只一间关门
	$shmid = @shmop_open($key, 'c', 0644, $size);  
	$start = microtime(true);
	for($i = 0; $i<10000; $i++) {
		shmop_write($shmid, $str, 0); 
	}
	$read=shmop_read($shmid,0,$size); 
	shmop_close($shmid);
}
sem_release($signal);//释放信号  开门
echo microtime(true) - $start;
echo "\n".$read;

4[代码][php]优势单台多程序并发安全，对shm进行10000次写入测试最少是0.041023015975952秒

//基于/dev/shm的缓存实现的性能测试，基于内存的缓存，在Windows上可以用普通文件系统做测试。
$arr = array( 1 => 
  array ('id' => '4146','attacksdfdsfdsddddddddddd' => '5.45','atk_class' => '神圣级','wufang' => '4.9','def_class' => '超神级','cefang' => '4.9','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizzinesssdfdsfdsfdsfdsfds_class' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F',
  ),
  2 => 
  array ('id' => '414ddffff7','attack' => '5.45','atk_class' => '神圣级','wufang' => '4.95','def_class' => '超神级','cefang' => '4.95','mdf_class' => '超神级','hp' => '6.43','hp_class' => '神王级','dodge' => '55','dodge_class' => 'SSSS','crit' => '50','crit_class' => 'SSS','penetrate' => '55','penetrate_class' => 'SSSS','mingzhong' => '51','hit_class' => 'SSSS','anti_dizziness' => '0','anti_dizziness_clsdfdsfdsfdsfdsfdsass' => 'F','anti_critical' => '20','anti_critical_class' => 'F','tenacity' => '0','tenacity_class' => 'F',
  ));

$str = json_encode($arr);

$start = microtime(true);
for($i = 0; $i<10000; $i++) {
    file_put_contents('/dev/shm/key', $str, LOCK_EX);
}
echo microtime(true) - $start;
echo "\n".file_get_contents('/dev/shm/key');