Multi-Queue network card is a technology, originally used to solve the network IO QoS (quality of service) problem, and later with the network IO bandwidth, the single core CPU can not fully meet the needs of the network card, through the multi-queue network card driver support, Each queue is bound to a different core through interrupts to meet the needs of the NIC. The common Intel 82575, 82576,boardcom 57711, the following with the company's servers using more Intel 82575 network card As an example, analysis of the multi-queue network card hardware implementation and Linux kernel software support. 1. Multi-queue NIC hardware Implementation Figure 1.1 is the Intel 82575 hardware logic diagram with four hardware queues. When a message is received, a stream is always received in the same queue through the SIP, Sport, DIP, and dport four tuples of the hash header. The interrupt that is bound to the queue is also triggered. Figure 1.1 82575 hardware Logic Figure 2. What is Rssrss (Receive Side Scaling) is a device that can be connected to a multiprocessor system
1. A detailed description of the package type
Introduction: Multi-queue network card is a technology, originally used to solve the network IO qos (quality of service) problem, and then with the network IO bandwidth, the single core CPU can not fully meet the needs of the network card, through the multi-queue network card driver support, Each queue is bound to a different core through interrupts to meet the needs of the NIC. Common Intel 82575, 82576,boardcom 57711, the following with the company's server use more Intel 82575 network card As an example, points ...
2. Network card Multi-queue technology and RSS features detailed introduction
Introduction: Multi-queue network card is a technology, originally used to solve the network IO QoS (quality of service) problem, and later with the network IO bandwidth, the single core CPU can not fully meet the needs of the network card, through the multi-queue network card driver support, Each queue is bound to a different core through interrupts to meet the needs of the NIC. Common Intel 82575, 82576,boardcom 57711, the following with the company's servers using more Intel 82575 network card As an example, analysis
3. Processing the picture of the software PHP processing picture class implementation code
Introduction: Processing pictures of the software: processing pictures of the software PHP processing pictures of the class implementation code: Copy code code as follows: <?php/** * Author:yagas * email:yagas60@21cn.com */class Image {/** class protection variable Volume */protected $th _width = 100; protected $th _height = 50; protected $quality = 85; Picture quality protected $transparen
4. PHP cache the GD generated images to Memcache's small example _php tutorial
Introduction: PHP Caches GD-generated images into Memcache's small example. Copy the code as follows://Start caching the picture Ob_start ();//enable output caching, temporarily cache the content to be output imagejpeg ($newimage, False, $quality);//Output $data = Ob_ge
5. Cache the GD-generated pictures into the memcahe_php tutorial
Summary: Cache a GD-generated picture to Memcahe. print?//Start Caching Pictures Ob_start ();//enable output caching, temporarily cache the content to be output imagejpeg ($newimage, False, $quality);//Output $data = Ob_get_contents () ;//Get just
6. PHP generated image thumbnail method collection
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Introduction: The question of adding video in WordPress. I don't use plugins but <embed></embed> tags. HTML code<embed play= "true" quality= "High" height= "$" width= "src=&quo"
9. How to save the images generated by PHP
Introduction: PHP generated images how to save PHP code $targ _w = $targ _h = 150; The size of the saved picture $jpeg _quality = 90; $SRC = '/image/abc.jpg '; $img _r = Imagecreatefromjpeg ($SRC); $DST _r = imagecreat
PHP to cache GD-generated images to Memcache's small example
Introduction: PHP Caches GD-generated images into Memcache's small example. Copy the code as follows://Start caching the picture Ob_start ();//enable output caching, temporarily cache the content to be output imagejpeg ($newimage, False, $quality);//Output $data = Ob_ge
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