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How is swoole better than java?

Developing applications based on frameworks, whether Swoole or Java, is equally difficult for users. However, it is easy to make mistakes when developing directly based on Swoole, which requires developers to have higher quality.

Dec 06, 2019 am 11:11 AM

swoole

The difference between swoole and libevent

Swoole is a PHP asynchronous network communication engine for production environments; and Libevent is a lightweight open source high-performance event notification library written in C language. Swoole Socket network development framework is based on php's libevent and pcntl modules, and can only be used on Linux

Dec 06, 2019 am 10:53 AM

swoole

What protocol does swoole use?

Swoole has implemented a data cache area at the bottom layer, and has built-in several commonly used protocol types, such as the EOF terminator protocol and the fixed header plus body protocol. A fixed set of strings /r/n that will not appear in normal data are used as markers for the split protocol, which is called the EOF protocol.

Dec 06, 2019 am 10:44 AM

swoole

How to use swoole event

Swoole\Server is an event-driven model, and all business logic code must be written in the event callback function. All event callbacks occur after $server->start; the last event when the server shutdown program terminates is onShutdown.

Dec 06, 2019 am 10:31 AM

swoole

How to use swoole constants

swoole uses a constant, Client::MSG_WAITALL, for the second parameter of the Client->recv() method, blocking and waiting until data of the specified length is received before returning.

Dec 06, 2019 am 10:12 AM

swoole

How to use swoole

Swoole is written in pure C language and provides asynchronous multi-threaded server in PHP language, asynchronous TCP/UDP network client, asynchronous MySQL, asynchronous Redis, database connection pool, AsyncTask, message queue, millisecond timer, asynchronous file reading and writing, asynchronous DNS query.

Dec 06, 2019 am 10:06 AM

swoole

How to restart swoole smoothly

In swoole, we can send various signals to the main process, and the main process performs different processing according to the type of signal received. SIGUSR1 will restart all Worker processes smoothly; SIGUSR2 will restart all Task processes smoothly.

Dec 06, 2019 am 09:58 AM

swoole

How to set timer in swoole

To set the timer, swoole can use its own JavaScript setInterval/setTimeout asynchronous high-precision timer, with a granularity of milliseconds. It's also very simple to use.

Dec 06, 2019 am 09:50 AM

swoole

How to install swoole in docker

How to install swoole with docker: 1. Use the docker pull php command to download the PHP image, and then use the docker command to create the container. 2. Use docker to install swoole in the container.

Dec 06, 2019 am 09:47 AM

dockerswoole

What swoole can do

Swoole can be widely used in the Internet, mobile communications, enterprise software, cloud computing, online games, Internet of Things (IOT), Internet of Vehicles, smart homes and other fields. Using PHP + Swoole as a network communication framework can greatly improve the efficiency of enterprise IT R&D teams.

Dec 06, 2019 am 09:40 AM

swoole

How to use swoole task

Swoole is implemented by the worker process processing the data request and assigning it to the task process for execution. Swoole asynchronous task mainly implements the execution of calling asynchronous tasks. The bottom layer of the task uses Unix Socket pipe communication, which is full memory and has no IO consumption.

Dec 06, 2019 am 09:25 AM

swoole

what is swoole fd

swoole fd is the file descriptor of the TCP connection, which is the unique identifier of the client in swoole_server; fd is reused, and when the connection is closed, the fd will be reused by the new incoming connection; the TCP connection fd being maintained will not be reused. use.

Dec 06, 2019 am 09:16 AM

swoole

The reason why swoole is higher than go

Go's processing of IO events is single-threaded, unable to utilize multiple cores, and its throughput is slightly weaker than swoole; in the actual TCP/UDP intensive IO stress test, swoole performed slightly better than go. swoole uses multi-threaded eventloop to handle IO events, and multiple processes execute user-level PHP code.

Dec 06, 2019 am 09:08 AM

swoole

Why is swoole better than php?

Compared with apache/fpm, the swoole framework mainly saves the performance loss caused by the creation and destruction of each request of the PHP framework and global objects. The swoole framework provides programmers with the greatest space, and global objects unrelated to http requests only need to be constructed once. Cache control of certain objects and data can also be performed in the program.

Dec 05, 2019 pm 02:41 PM

swoole