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There is a standard set of rrd databases containing stats for journal, system, shell. For each activity there is an independent rrd database which tracks a standard set of parameters, the details for which are listed below.
 
There is a standard set of rrd databases containing stats for journal, system, shell. For each activity there is an independent rrd database which tracks a standard set of parameters, the details for which are listed below.
   −
===journal.rrd===
+
* database files conform [[Platform_Team/Usage_Statistics#Statistics|Statistics identifiers list]];
* active
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* database file name for non-activities is in format {{Code|<TOP-LEVEL-STAT-ID>.rrd}};
* creates
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* database file name for activities is in format {{Code|activity.<BUNDLE-ID>.rrd}};
* deletes
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* the set of database fields conform second level stat identifiers for particular stat.
* updates
  −
* uptime
  −
 
  −
===system.rrd===
  −
* diskfree
  −
* uptime
  −
 
  −
===shell.rrd===
  −
* active
  −
* friends
  −
* uptime
  −
 
  −
===activity.<bundle_id>.rrd===
  −
* active
  −
* buddies
  −
* instances
  −
* new
  −
* resumed
  −
* uptime
      
==Factors affecting network bandwidth==
 
==Factors affecting network bandwidth==