The penultimate day of August, the night before the opening of the IFA in Germany, Zhao Ming, the glorious president, rushed to expose Magic2 's material information to the world, including the Kylin HiSilicon 980 chip +40w Fast Charge and the proud "black Tech" design-a full-screen slide, and named it "Magic Slide Magic Full Screen ".Glory Magic2 Black Technology not "black"Glory Magic This mobile phone series, is the glory of the mobile phone in the high-end series, positioning and pricing are
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"If you show me the code and don't let me understand the data structure, I'll be confused." If I knew the data structure, I would obviously no longer have to look at your code more often. "– Written by Eric Raymond in" the Cathedral and the Bazaar:musings on Linux and Open Source by an accidental revolutionary ", 1997
Language innovation
The basic task of programming is to tell the computer how to do something. Becaus
First of all, please forgive the title of this article is a bit big, but not for grandstanding. This article takes this title mainly has 3 reasons, this is also the original intention of writing this article:(1) At present, almost no search in the country to fully explain how to build a front-end separation framework of the article, talk about the separation framework of the front and rear end of the idea of less, and I hope in this article can be fully and in detail the team in the front and ba
use
Ubuntu founder Mark Shuttleworth, who claimed in 08 to develop an interface comparable to Apple, has not developed an ideal unified interface, but this move allows programmers to focus on ease of use and design. Gnome has the most extensive experience and expertise in design, but no mainstream desktop environment ignores design today. GNOME, unity, and KDE even emit their own-brand fonts.
3, the pace of innovation slowed
KDE 4, GNOME 3 and unity have always had a big gap with the clas
does not mean that the use of research does not need to touch this work. Because there is inevitably loss and distortion in the process of information passing between different minds, product managers and designers understand that using research reports may just be a small subset of the researcher's experience system, and that the user researcher, who is the most deeply understood user, has the responsibility to translate this understanding into product recommendations and find out " Landing ",
main algorithmic challenges it presents (main algorithmic challenges).
We studied the performance of humans and machines on three general-purpose segmented datasets, all three of which contain annotations to materials and things (stuff and things). These datasets are cityscapes, ade20k, and mapillary vistas, respectively. For each data set, we get the results of the most advanced methods directly from the challenge organizer. In the future, we will extend the analysis to Coco (stuff) in Coco. W
performance on a mobile deviceBecause of the unpredictable nature of mobile devices, it is important to test performance on multiple devices. Here are some free performance testing tools:
Mobitest,akamai: You can generate waterfall and har files for IOS 5.0,iphone 3 G and Nexus S on IPhone 4. Note The Nexus S test results are inconsistent with our own internal tests. Our server access logs show when we test the actual Android 2. The x devic
http post parameters to change the cache items. For example, you only need to set VaryByParam = "Report" to set the default. aspx? Report = 1 or default. aspx? Report = 2. You can specify other parameters by specifying a list separated by semicolons.
Many people do not know when to use the output cache. The ASP. NET page will also generate some HTTP headers located below the cache Server, such as the headers used by Microsoft Internet Security and Acceleration Server or
attribute just mentioned. VaryByParams is requested, but you can also specify http get or http post parameters to change the cache items. For example, you only need to set VaryByParam = "Report" to set the default. aspx? Report = 1 or default. aspx? Report = 2. You can specify other parameters by specifying a list separated by semicolons.Many people do not know when to use the output cache. The ASP. NET page will also generate some HTTP headers located below the cache Server, such as the header
technologies, and fiber-to-household. Akamai publishes a global bandwidth report every quarter With the Tracerouter tool, you can view the routing topology, and the last kilometer delay has a significant relationship with the provider, deployment method, network topology, and even the time of day. As an end user, if you want to improve your internet speed, it is critical that you choose the shortest latency ISP. ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
cache", the gateway cache is also acting as a proxy role, through the network administrator (or webmaster himself), can make the bandwidth more efficient use, so that their website becomes more reliable.Content Delivery Networks(CDNs) to sell their cache service. Speedera and Akamai are very famous CDNs.What is the impact of caching on your site? How do I use caching correctly?Site cache is often misunderstood, owners think proxy cache can be "hidden
answer is "Facebook content distribution Network". Facebook uses content distribution networks (CDNs) to distribute static files like images, CSS tables, and JavaScript files. As a result, these files will be backed up in many CDN data centers around the world.Static content often represents the bandwidth size of the site and can be easily replicated through a CDN. A third-party CDN is usually used by the website. For example, Facebook's static files are hosted by
Facebook is now reading more than 10 times times faster than standard mobile web articles. Yes, it's 0.8 seconds, honestly, no one knows how Facebook did it, and it's really impressive.Facebook has full control over what is presented to the user. Without instant articles, users clicked an article on the New York Times web site, most likely to come to the New York Times Web server (which might be provided by Akamai or other similar vendors), and then
content often represents the bandwidth of the site and can be easily copied through CDN. Websites usually use third-party CDN. For example, Facebook's static files are hosted by Akamai, the largest CDN provider.
For example, when you try to ping static.ak.fbcdn.net, you may obtain a response from an akamai.net server. Interestingly, when you ping the server again, the response server may be different. This shows that the load balancing function start
download page, such as files, stylesheets, scripts, and Flash. Instead of the difficult task of refactoring the system, it is better to distribute the static content first. This not only greatly reduces the response time, but also due to the existence of CDN, the distribution of static content is very easy to implement. A CDN is a collection of geographically distributed Web servers that you use to publish content more efficiently. Web server is typically selected for specific user services bas
ISP and Web companies have been setting up World IPv6 Launch Day for one year. Akamai reported that IPv6 traffic on the IPv6 content transmission platform has increased by 250%, the number of requests sent every day reaches 10 billion. Although this traffic is still far behind IPv4, it continues to grow. At the same time, the misunderstanding of IPv6 has always affected the deployment of this Protocol and the security of the enterprise network.
After
To make HTTPS global! Let's Encrypt pulled Facebook
It is reported that the Let's Encrypt Project (designed to promote the globalization of HTTPS encryption protocols and allow more websites to adopt HTTPS encryption protocols) has officially opened Beta testing since January 1, December 3. At the same time, Let's Encrypt project team also said that Facebook became its latest gold medal sponsor.
Let's Encrypt Project
In November 2014, companies such as EFF, Mozilla, Cisco, and
), which is converted to a bandwidth capacity of hundreds of T bit/s per cable.Access network bandwidthThe backbone, or fiber link, is the core data route that makes up the Internet, capable of transmitting hundreds of tbit/s of data. However, the available capacity of the access network is much less and varies greatly with different access technologies: dial-up, DSL, wired cable, host-based wireless technology, fiber-to-home, local router performance. The user's available bandwidth is among the
in mind that 80% to 90% of the response time in the end user's response time is used to download images, stylesheets, scripts, Flash, and other page content. This is the Golden Code of website performance. It would be a little better to distribute static content first, than to redesign your application architecture for a more difficult task. This not only shortens response times, but it is easier to implement for content distribution networks.Content Delivery Network,cdn is made up of a series
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