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9f66aa9cc4
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.