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7/11/2014 2:48 PM
Pattern: | Why Fast Device Detection Matters | 51Degrees Test
Execution of both PerfPat and PerfTrie consists of 3 stages First stage prepares data for use by reading it in to the memory Then calibration takes place Calibration verifies that data is actually in memory and ready to be used as well as calculates the time it takes to read data file Calibration time is subtracted from total test time to remove the overheads of reading data from the results Detection is the last stage and that is where user agents from user agent file are matched against 51Degrees device data file Trie or Dat Please note that first two stages are not taken in to account when measuring performance