> MemHandleLock is surprisingly slow function. I've benchmarked it many > times and got awful results - it was a times slower than everything else > in my program. I found no way to avoid it - even if I use the the > handle as a pointer to pointer (and the value it points is the actual > value I receive from MemHandleLock) I'm getting fatal alerts. So the > only way I found is to make a FtrPtrNew at the start of the program, > lock all the records and store the pointers in this feature memory, then > unlock back at the end. Sad but true.
I've found the same thing to be true. E.g., when doing a bubble sort of a few hundred records, the constant locking and unlocking of records really slows things down quite a bit. But, if I lock all of the records first, do the sort, and then unlock them, its much faster (maybe 3-5 times faster, though I've never done any timing tests). Rich -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
