polygraph-cmp-lx(1) log comparison tool


cmp-lx.pl [--precision=percent] [--scope=important|all] <f1.lx> <f2.lx>


Cmp-lx compares results from two tests and prints stats that differ significantly. With important scope some stats are ignored. The following events are not important:


  *.min and *.max except for *.hist.min and *.hist.max

  *.mean if there is corresponding *.hist.mean

  rare events

Histogram and errors are important.

Rare events are events that happened in less than 0.1% of the cases where they could have occurred. Measurements related to such events are not important. Event rate is calculated using xact.started measurement as total count. List of events:

  basic offered hit miss cachable uncachable fill ims reload range
  head post put abort page ssl ftp 100_continue proxy_validations auth
  tunneled proxy_validation rep req


difference threshold in percent, default: 10
which stats to compare, default: important


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