tree 25923ba892fda12872381b55fe0cecf45fbf7633
parent e97b9048016977feceb2b21f14a6e5cfea34d295
author Willy Tarreau <w@1wt.eu> 1400855816 +0200
committer Willy Tarreau <w@1wt.eu> 1400856025 +0200
encoding latin1

CONTRIB: halog: avoid calling time/localtime/mktime for each line

The last commit provides time-based filtering. Unfortunately, it wastes
90% of the time calling the expensive time()/localtime()/mktime()
functions.

This patch does 3 things :
  - call time()/localtime() only once to initialize the correct
    struct timeinfo ;

  - call mktime() only when the time has changed regardless of
    the current second.

  - manually add the current second to the cached result.

Doing just this is enough to multiply the parsing speed by 8.