Performance

On my i7 system I see a speed ranging from 500 to 4000 useragents per second (depending on the length and ambiguities in the useragent). On average the speed is around 2000 per second or ~0.5ms each. A LRU cache is in place that does over 1M per second if they are in the cache.

Please note that the current system take approx 400MiB of RAM just for the engine (without any caching!!).

Output from the benchmark ( using this code ) on a Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz:

Benchmark Mode Cnt Score Error Units
AnalyzerBenchmarks.android6Chrome46 avgt 10 0.561 ± 0.011 ms/op
AnalyzerBenchmarks.androidPhone avgt 10 0.726 ± 0.010 ms/op
AnalyzerBenchmarks.googleAdsBot avgt 10 0.120 ± 0.002 ms/op
AnalyzerBenchmarks.googleAdsBotMobile avgt 10 0.378 ± 0.001 ms/op
AnalyzerBenchmarks.googleBotMobileAndroid avgt 10 0.616 ± 0.006 ms/op
AnalyzerBenchmarks.googlebot avgt 10 0.197 ± 0.007 ms/op
AnalyzerBenchmarks.hackerSQL avgt 10 0.093 ± 0.004 ms/op
AnalyzerBenchmarks.hackerShellShock avgt 10 0.069 ± 0.003 ms/op
AnalyzerBenchmarks.iPad avgt 10 0.339 ± 0.003 ms/op
AnalyzerBenchmarks.iPhone avgt 10 0.343 ± 0.003 ms/op
AnalyzerBenchmarks.iPhoneFacebookApp avgt 10 0.717 ± 0.004 ms/op
AnalyzerBenchmarks.win10Chrome51 avgt 10 0.290 ± 0.010 ms/op
AnalyzerBenchmarks.win10Edge13 avgt 10 0.328 ± 0.003 ms/op
AnalyzerBenchmarks.win10IE11 avgt 10 0.334 ± 0.006 ms/op
AnalyzerBenchmarks.win7ie11 avgt 10 0.329 ± 0.006 ms/op

In the canonical usecase of analysing clickstream data you will see a <1ms hit per visitor (or better: per new non-cached useragent) and for all the other clicks the values are retrieved from this cache at a speed of < 1 microsecond (i.e. close to 0).

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