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What is cache used for?

Discussion in '(X)HTML / CSS' started by balajia, Jul 15, 2010.

  1. balajia

    balajia New Member

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    What is cache used for? in JOOMLA

    A Cache is a collection of data duplicating original values stored elsewhere or computed earlier, where the original data is expensive to fetch (due to slow slow access time) or to compute, relative to the cost of reading the cache. In other words, a cache is a temporary storage area where frequently accessed data can be stored for rapid access. Once the data is stored in the cache, future use can be made by accessing the cached copy rather than re-fetching or recomputing the original data, so that the average access time is lower.

    What does this mean in terms of Joomla? Instead of hitting your MySql database with same queries over and over again, your data is stored to a local storage (in the Joomla cache directory) and retrieved from there, instead of from the database. This means that your database will perform better, and your website will feel faster, and be able to support more simultaneous users.


    Activitating the Joomla Cache in joomla1.5 is quite straight forward. From the Global Configuration, click on System Tab, and on the right hand side there is the Cache Settings section. Click Yes on Cache Settings, and don't forget to put a "reasonable" amount in minutes (60 minutes should be quite good for most websites). Once you press Apply, Caching will be enabled.
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  2. sazymi

    sazymi New Member

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    Cache is use to store data's. it can be either a reserved section of main memory or an independent high-speed storage device. It has two types of caching which are commonly used in personal computers, the memory caching and disk caching.
  3. mahesh2010

    mahesh2010 Member

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    cache is mainly used for temporary storage, i.e to get fast access to the related information surfed recently or used frequently...
  4. strauss01

    strauss01 New Member

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    A Cache is a compilation of data replacement unique values accumulate elsewhere or subtract earlier, where the unique data is luxurious to obtain or to figure, relative to the cost of reading the cache. A cache is a impermanent luggage compartment area where normally accessed data can be stored for rapid access.
  5. faye valentine

    faye valentine New Member

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    It accelerates the CPU instruction retrieval process and result in a more efficient system. And without the help of cache, the CPU has to retrieve instruction directly from the RAM (since RAM operates at a much lower speed than the CPU) the full efficiency of the CPU is not used.

    Here's some guide to help you about cache: Cache - Is Your Web Site Cache Friendly? - NetLingo The Internet Dictionary: Online Dictionary of Computer and Internet Terms, Acronyms, Text Messaging, Smileys ;-) Hope this will help you knowing what cache is..
  6. aryans77

    aryans77 New Member

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    cache is a component that transparently stores data such so that future requests for that data can be served faster.

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