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Which characters make a URL invalid?
...ia.org/wiki/Möbius_strip or
https://zh.wikipedia.org/wiki/Wikipedia:关于中文维基百科/en.
First, a digression into terminology. What are these addresses? Are they valid URLs?
Historically, the answer was "no". According to RFC 3986, from 2005, such addresses are not URIs (and therefore no...
How do we control web page caching, across all browsers?
...and answer are targeted on "web pages" (HTML pages), not "file downloads" (PDF, zip, Excel, etc). You'd better have them cached and make use of some file version identifier somewhere in URI path or querystring to force a redownload on a changed file. When applying those no-cache headers on file down...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...tx-/xps_cpus配置映射关系。
内核优化
由于目前的linux发行版本依然存在很多TCP方面的性能问题， 因此优化内核是比较直接且有效的方式。
但是需要对内核上游源码持续跟踪，关注bug和新特性，需要长期维护， 并且未来新版本...
CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术
...说明：
大家很容易的可以看出这是情境（一）的加强版，适用于更广泛的环境。其实情境（一）中也已经做到了把火狐与IE游览器区分开来了，现在我们要做的是把火狐从其它游览器中再次识别出来。大家仔细看下代码，大家...
Getting the closest string match
...information and links to primary research papers. The ELAND link goes to a PDF with useful figures illustrating the concepts involved, and shows how to deal with insertions and deletions.
Finally, while these algorithms have basically solved the problem of (re)sequencing single human genomes (a bil...
What does multicore assembly language look like?
...om/help/topic/com.arm.doc.dht0008a/DHT0008A_arm_synchronization_primitives.pdf
Tested on Ubuntu 18.10, GCC 8.2.0, Binutils 2.31.1, QEMU 2.12.0.
Next steps for more convenient programmability
The previous examples wake up secondary CPU and do basic memory synchronization with dedicated instruction...
实战Nginx与PHP（FastCGI）的安装、配置与优化 - 更多技术 - 清泛网 - 专注...
...
从www.php.net官方网站下载PHP源码包，这里下载的是稳定版php-5.2.13.tar.gz。
从http://php-fpm.org/downloads/下载对应的PHP-FPM源码包，这里下载的是php-5.2.13-fpm-0.5.13.diff.gz。
需要注意，在下载软件包版本时，尽量使PHP和PHP-FPM版本一致，...
Refresh image with a new one at the same url
...g the use of stale script or css files, or perhaps even refreshing updated PDF documents (using (4) only if set up to open in-browser). Method (4) might require some changes to the above javascript, in these cases.
share
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C++ performance vs. Java/C#
...ources:
https://days2011.scala-lang.org/sites/days2011/files/ws3-1-Hundt.pdf
http://www.computing.co.uk/ctg/news/2076322/-winner-google-language-tests
Edit (2011-09-20)
"The going word at Facebook is that 'reasonably written C++ code just runs fast,' which underscores the enormous effort spe...
TCP 的那些事儿（上） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...处理正常的大负载的连接的情况。因为，synccookies是妥协版的TCP协议，并不严谨。对于正常的请求，你应该调整三个TCP参数可供你选择，第一个是：tcp_synack_retries 可以用他来减少重试次数；第二个是：tcp_max_syn_backlog，可以增大SY...