Shulou(Shulou.com)06/01 Report--

1) Web applications based on static content

A, small files are mostly, and read operations are frequent, mainly consume content b, optimization, try to use cache in the first section, if the visit volume is large, use cdnc, in high concurrent access, there is another, if the network bandwidth bottleneck, customer access volume is large and the bandwidth is not enough, the network will be blocked

2) Web applications based on dynamic content

A, perform write operations frequently, such as JAVA,PHP,Perl,CGI, etc., at this time, CPU resource consumption will be very serious, because the execution of dynamic programs to compile, read the database and other operations, these will consume a lot of CPU.b, dynamic content-based Web applications in high concurrent access, the system will execute a lot of processes, so it is necessary to consider the load allocation, because insufficient memory will use virtual memory The increase of virtual memory will lead to frequent disk writes and consumption of CPU resources c, so try to consider large memory and high-performance CPU resources.

3) Database application

A, the database application is characterized by memory consumption and disk CPU 0, while the consumption of CPU is not too large b, consider separating the database AP side from the database DB side (read-write separation) c, if there are excessively large tables in the database, you can consider splitting, that is, splitting a large table into multiple small tables, and then association processing through the index, so as to avoid the performance problems caused by querying large tables. D, optimize the SQL statement (avoid full table query as far as possible) e, use cache at the front end as far as possible, reduce the pressure on the database side

4) Software download application

A, higher requirements for bandwidth and storage performance, and can be used to share the download load in the form of multiple, multi-point servers.

5) streaming media service application

A, the main applications of streaming media are video conferencing, video-on-demand, remote access, online live broadcast and other applications. B. the main bottlenecks of such applications are network bandwidth and reserve system bandwidth (mainly read operation) c, optimization, storage optimization of video coding, use of proxy server, segmented cache, dynamic cache, optimized memory pool and thread pool.

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