In our previous episode, Sergei Gorelkin said: > > > > Average string length 45 characters: > > ShortString: 12.0 s > > AnsiString: 3.2 s > > > > I agree that the first case is more relevant for the compiler, > > but still you can see that ShortStrings are clearly not always faster. > > > I believe it's not ShortStrings per se to blame, but storing them in a large > single memory block as > it is being done in TFPHashList. Adding a lot of keys will cause many > reallocations. Large size of > the block forces memory manager to use variable-size pool, which is less > efficient than using > fixed-size blocks in case of small chunks.
I actually thought that too, and did a benchmark (cclasses')hashlist against an own implementation based on array of array (to reduce that by a magnitude) a few years back Mine was slower. _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
