understood the magnitude of the cache, it is the system in many different ways to use, may be stored in the memory, hard pedal, alternatively database, are constantly used to process DNS requests.
Italian economist Vilfredo Pareto's 8-2 decree, outside the field of calculators in the economy system cache is still appropriate, 80 percent of the time consumers access merely 20% of the data. Use a good cache ambition mainly conserve system resources, providing system performance.
This
5 of the best free / open-source Linux caching system, surely can no miss.
1,
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memcached is a distributed caching system originally was developed along Danga Interactive for LiveJournal, merely is currently accustomed at many software (eg MediaWiki) are accustomed. This is a set of open source software, to authorize loosen of BSD license.
2, Redis
Redis is a high performance of key-value database. redis emergence of a great amplitude,
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3,
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Membase open source projects, source code, using Apache2.0 license to use. The project is hosted aboard GitHub.Source tarballs, the new beta edition of Linux you can download the binary archive. The product is primarily from the North Scale of the core crew members developed memcached, which also include Zynga, and NHN 2 cardinal contributors to the engineers, the 2 organizations are a great online gaming and social webbing space provider.
4, Ehcache
EhCache process is a pure Java framework among the cache, a rapid, lean and so is the default in Hibernate CacheProvider.
5, Java Caching System
JCS (Java Caching System) is a Jakarta subproject. It namely a composite of the buffer tool. Objects can be buffered into memories, hard disk. Time expired with the buffer thing set. JCS tin too create a dispensed storage building apt attain lofty extravaganza. For some prevalent visits and each visit requires a quite resource consuming thing can be temporarily stored in the buffer, which can enhance service performance. The JCS is a nice buffer tool. Read the buffer tool because distant more than jot the application performance is very meaningful.
text: http://www.linuxlinks.com/article/20110422164756253/CachingSystems.html