Quality introductory tutorials: 10 recommended quality zero-based introductory tutorials

Multi-queue network card is a technology. It was originally used to solve the problem of network IO QoS (quality of service). Later, as the bandwidth of network IO continued to increase, a single-core CPU could not fully meet the needs of the network card. Through Support for multi-queue network card drivers binds each queue to different cores through interrupts to meet the needs of the network card. Common ones include Intel's 82575, 82576, Boardcom's 57711, etc. Let's take the Intel 82575 network card, which is commonly used by the company's servers, as an example to analyze the hardware implementation of the multi-queue network card and the support of the Linux kernel software. 1. Multi-queue network card hardware implementation Figure 1.1 is the Intel 82575 hardware logic diagram, which has four hardware queues. When a packet is received, a flow is always received in the same queue by hashing the SIP, Sport, DIP, and Dport quadruples in the packet header. At the same time, the interrupt bound to the queue is triggered. Figure 1.1 82575 hardware logic diagram 2. What is RSSRSS (Receive Side Scaling) is a method that can be used in multi-processor systems

1. Detailed introduction to packaging types

##Introduction: Multi-queue network card is a technology that was originally used to solve network IO QoS (quality of service) problem. Later, as the bandwidth of network IO continued to increase, a single-core CPU could not fully meet the needs of the network card. With the support of the multi-queue network card driver, each queue was bound to different cores through interrupts to meet the needs of the network card. Network card requirements. Common ones include Intel's 82575, 82576, Boardcom's 57711, etc. The following takes the Intel 82575 network card that is commonly used in the company's servers as an example...

2. Detailed introduction of network card multi-queue technology and RSS function

## Introduction: Multi-queue network card is a technology. It was originally used to solve the problem of network IO QoS (quality of service). Later, as the bandwidth of network IO continued to increase, a single-core CPU could not fully meet the needs of the network card. With the support of the multi-queue network card driver, each queue was passed through Interrupts are bound to different cores to meet the needs of the network card. Common ones include Intel's 82575, 82576, Boardcom's 57711, etc. Let's take the Intel 82575 network card, which is commonly used by the company's servers, as an example to analyze

3.

Processing pictures Software PHP class implementation code for processing pictures

Introduction: Software for processing pictures: Software PHP for processing pictures Class implementation code for processing pictures: Copy the code The code is as follows:< ?php /*** author:yagas * email:yagas60@21cn.com*/ class Image { /**class protected variable*/ protected $th_width = 100; protected $th_height = 50; protected $quality = 85; //Image quality protected $transparen

4.

Small example of php caching the images generated by gd into memcache_PHP tutorial

Introduction: php will cache the images generated by gd A small example of caching images to memcache. Copy the code as follows: //Start caching images ob_start(); //Enable output caching and temporarily cache the content to be output imagejpeg($newimage,false,$quality);//Output $data = ob_ge

5.

Cache the images generated by gd to memcahe_PHP tutorial

Introduction: Cache the images generated by gd to memcahe. print?//Start caching images ob_start();//Enable output caching and temporarily cache the content to be output imagejpeg($newimage,false,$quality);//Output $data = ob_get_contents();//Get just

6.

PHP generates image thumbnail method collection

Introduction: PHP generates image thumbnail method function code as follows: 0,'file'=>'','wid

##7.

How to compress the image quality without changing the image size

Introduction: How to compress image quality without changing the image size? How to compress image quality without changing the image size? Like PHOTOSHOP, you can set the image quality to save. Please advise, thank you. ------solution-------------------- bool imagejpeg (resource image [, string filename [, int quality]] )quality

8. Issues related to adding videos in wordpress

Introduction: The problem of adding videos in wordpress. I didn't use a plugin but the tag. HTML code

9. How to save pictures generated by PHP

Introduction: How to save pictures generated by PHP code $targ_w = ​​$targ_h = 150; //The size of the saved image $jpeg_quality = 90; $src = '/image/abc.jpg'; $img_r = imagecreatefromjpeg($src); $dst_r = ImageCreat

##10. A small example of php caching images generated by gd to memcache

Introduction: A small example of php caching images generated by gd into memcache. Copy the code as follows: //Start caching images ob_start(); //Enable output caching and temporarily cache the content to be output imagejpeg($newimage,false,$quality);//Output $data = ob_ge

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