An understanding of APC
Asynchronous Process calling (APCs) is a basic part of the NT asynchronous processing architecture. It is helpful to understand how nt operates and how to execute several core system operations.1) APCs allows user
Asynchronous Process calling (APCs) is a basic part of the NT asynchronous processing architecture. It is helpful to understand how nt operates and how to execute several core system operations.
1) APCs allows user programs and system components to
APC, full name: AlternativePHPCache, officially translated as "optional PHP Cache ". It provides us with a framework for caching and optimizing PHP intermediate code. APC cache consists of system cache and user data cache.
APC, full name:
unconsciously came to the small series of articles, this time brought a little bit of knowledge to share with you, I hope you have something to gain! what are the programming languagesAlternative PHP cache (APC) is a free, publicly available,
When uploading multiple files, we may often need a long wait time, and the network and software, and so on, often have time-out and upload failure phenomenon. How to get the file upload progress in real time when uploading multiple files in PHP, and
Document directory
Cancels a periodic timer.
Example
Kernel mutex
Mutex is short for mutual exclusion. The kernel mutex provides a method (not necessarily the best) for serializing access to shared resources by multiple competing threads ). If
Thread Pool
The following is an excerpt from msdn thread pooling.Threads created by many applications spend a lot of time in sleep to wait for an event. Some threads are regularly woken up after they enter the sleep state to change or update status
The first chapter is optimized for system calls too muchMy optimization for syscall calls too many problems, so use Strace to trace Apache for analysis.
1. Apache2ctl-x &Start the httpd process with the-X (debug) parameter, which starts only 1
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