是一个设计将LinuxFreak.org新
//
// v2.0.5
//
// include("linuxfreak.php3");
// ?>
// dreamphp boy = sunboy
$link_prefix = " o ";
$link_postfix = "
n";
$cache_file = "/tmp/linuxfreak2.cache";
$cache_time = 1200;
$max_items = 8;
$target = "_top";
// End of customizations
$backend = "http://www.linuxfreak.org/backend/linuxfreak.rdf";
$items = 0;
$time = split(" ", microtime());
srand((double)microtime()*1000000);
$cache_time_rnd = 300 - rand(0, 600);
if ( (!(file_exists($cache_file))) || ((filectime($cache_file) $cache_time - $time[1]) $cache_time_rnd $fpread = fopen($backend, 'r');
if(!$fpread) {
} else {
$fpwrite = fopen($cache_file, 'w');
if(!$fpwrite) {
} else {
while(! feof($fpread) ) {
$buffer = ltrim(Chop(fgets($fpread, 256)));
if (($buffer == "
$link = ltrim(Chop(fgets($fpread, 256)));
$title = ereg_replace( "
$title = ereg_replace( "
$link = ereg_replace( "", "", $link );
$link = ereg_replace( "", "", $link );
fputs($fpwrite, "$link_prefix$title$link_postfix");
$items ;
}
}
}
fclose($fpread);
}
fclose($fpwrite);
}
if (file_exists($cache_file)) {
include($cache_file);
}
?>
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The thing is actually like this. At that time, my leader gave me a perf hardware performance monitoring task. During the process of using perf, I entered the command perf list and I saw the following information: My task is to enable these cache events to be counted normally. But the point is, I have no idea what these misses and loads mean.

Using the cache can increase the speed of the computer because the cache shortens the waiting time of the CPU. Cache is a small but high-speed memory located between the CPU and the main memory DRAM. The function of Cache is to increase the rate of CPU data input and output; Cache has a small capacity but fast speed, while the memory speed is low but has a large capacity. By optimizing the scheduling algorithm, the performance of the system will be greatly improved.

Cache is called cache memory. It is a high-speed small-capacity memory between the central processing unit and the main memory. It is generally composed of high-speed SRAM. This kind of local memory is oriented to the CPU. It is introduced to reduce or eliminate the gap between the CPU and the memory. The impact of the speed difference between them on system performance. Cache capacity is small but fast, memory speed is low but capacity is large. By optimizing the scheduling algorithm, the performance of the system will be greatly improved.

Title is the meaning that defines the title of the web page. It is located within the tag and is the text displayed in the title bar of the browser. Title is very important for the search engine optimization and user experience of the web page. When writing HTML web pages, you should pay attention to using relevant keywords and attractive descriptions to define the title element to attract more users to click and browse.

Here is the tutorial for nginx reverse proxy caching: Install nginx: sudoaptupdatesudoaptinstallnginx Configure reverse proxy: Open nginx configuration file: sudonano/etc/nginx/nginx.conf Add the following configuration in the http block to enable caching: http{...proxy_cache_path /var/cache/nginxlevels=1:2keys_zone=my_cache:10mmax_size=10ginactive=60muse_temp_path=off;proxy_cache

Preface Caching can effectively improve system performance and stability by storing frequently accessed data in memory, reducing the pressure on underlying data sources such as databases. I think everyone has used it more or less in their projects, and our project is no exception. However, when I was reviewing the company's code recently, the writing was very stupid and low. The rough writing is as follows: publicUsergetById(Stringid){Useruser=cache. getUser();if(user!=null){returnuser;}//Get user from the database=loadFromDB(id);cahce.put(id,user);returnu

php提交表单通过后,弹出的对话框怎样在当前页弹出php提交表单通过后,弹出的对话框怎样在当前页弹出而不是在空白页弹出?想实现这样的效果:而不是空白页弹出:------解决方案--------------------如果你的验证用PHP在后端,那么就用Ajax;仅供参考:HTML code

Characteristics of cache: A one- or two-level high-speed, small-capacity memory set between the CPU and the main memory. The information is naturally lost when the computer is powered off. Characteristics of ROM: it can only read data from the memory, but cannot write information into it. The data will still exist after the computer is powered off. Characteristics of ram: it can read data from the memory and write information to the memory; it is used to store commands, programs and data required to run the program; information is naturally lost when the computer is powered off.
