On 7/5/05 7:04 AM, Eric Cholet wrote: > A while ago we did some profiling of an app that uses DateTime > extensively and found out that most of the time is spent in > Params::Validate. I understand this is somewhat of a religious issue, > but in this case it's a net loss for us: the params have been > validated zillions of times, and we lose performance in production. I > would love a DateTime sans param validation.
Have you tried turning off the validation by setting the PERL_NO_VALIDATION environment variable? I agree with Dave that moving big/numerous data structures from Perl to C will have the most bang for the buck: On 7/4/05 1:47 PM, Dave Rolsky wrote: > Implementing time zones in XS as native C data structures would almost > certainly be a huge win. Beyond that, the biggest culprits will probably be what they always are in non-compute-intensive Perl: function/method call overhead and memory management overhead. Reduce the number of subs that are called and reduce the size and number of allocations/deallocations and then you might start to get closer to the point where actual "calculations" start to become visible in the profile. -John
