asp.net
asp.net pre-compilation and keep-alive
1, pre-compilation in Whidbey
Asp. NET is a major feature is dynamic compilation, but some occasions pre-compilation is a better choice, for example, you do not want to visit your site's first users silly waiting, or you do not want to have any source code (including HTML content) to your users.
Pre-compilation in ASP.net 2.0 support very thoroughly, you can
The browser and the server need to shake hands three times when establishing an HTTP connection. In a high-concurrency environment, a three-way handshake for each connection consumes too much service resources, this is essentially because HTTP is stateless. the connection = close mode is enabled by default in http1.0, which means both the server and the client need to close the TCP connection, and the client determines whether the response is received by judging whether the connection is closed.
Use Chrome to connect to the Nginx server (Nginx+spero) and discover that each request result is returned to the browser and will run after a few minutesNgx_http_close_connection function, you can see the header returned to Chrome by Nginx and the result is:http/1.1 OKServer:nginxDate:fri, APR 08:39:50 GMTContent-type:text/plainContent-length:28Connection:keep-aliveKeep-alive:timeout=5Spero return ads, status 200And through Curl access, but also return the same results, but Nginx will immediatel
Three configuration parameters, regardless of windows or linux,keepalive. The following is an introduction to the Linux environment.Technorati Tags: keepaliveThere are three related member variables in the tcp_sock structure. Keepalive_probes: Number of probes Keepalive_time: Time-out for probing KEEPALIVE_INTVL: Detection interval For a TCP connection that has already been established. If the two parties do not have any packet transmission during the keepalive_time time, the KeepAlive function
Keep-alive and close this is going to start with the TCP handshake.HTTP requests are based on TCP connections, TCP requests are included (three handshake, intermediate request, four wave)In the http/1.0 era, an HTTP request will be three handshake and four waves, when a Web page contains a large number of images or other external resources, loading a document to a number of HTTP requests, it means to be mor
Start startup_jprofiler.sh as instructed in the tutorial.When SH is disconnected, the following message may pop up:The JVM has exited. Some profiling infomation will not be available. You can prevent the JVM from existing by selecting "Keep VM alive" on the "Miscellaneous" tab of the profiling settings.According to the above prompt information,Navigate to "profiling"-> "show global filters for method call r
After the vswitch system is restarted successfully and the VRP platform software is updated, the switch system is reconfigured according to the previous configuration, and the switch's working status returns to normal immediately, so what is the reason?
As a core network terminal in a LAN, maintaining the switch system becomes very important. In order to make the LAN work more stably, we often need to properly adjust the switch to ensure that the device can always run efficiently.
Regular upgrad
Development project, using the Vue 2.x version with the routing switch vue-router, but many times some pages need to be cached, some pages do not need to cache, then how to do a processingHere I use a solution to solve this problem:First, the full cache tag on the portal page is Resolves some component page settings that do not need to be cached activated to respond to events againWebsite APIVue.js 2.x can set a solution that is not keep-
Therefore, you can determine the end of a request based on EOF. The following code (PHP) is very common:
Copy codeThe Code is as follows: // $ fp is the handle generated by fsockopen ().
While (! Feof ($ fp )){
Echo fgets ($ fp );
}
(Note: The short Connection mode is marked with "Connection: close" in the header and "Connection: keep-alive" in the persistent Connection mode. Currently, HTTP/1.0 uses short
So depending on the EOF to determine the end of a request, the following code (PHP) is common:
Copy Code code as follows:
$FP is the handle produced by Fsockopen ()
while (!feof ($fp)) {
Echo fgets ($FP);
}
(Note: The short connection mode is marked with "Connection:close" in the head, and the long connection is marked with "connection:keep-alive".) Currently http/1.0 uses a short connection by default, and http/1.1 uses
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