On 28 January 2013 21:08, François Dumont wrote: >> >> (Do the performance benchmarks actually tell us anything useful? >> When I run them I get such varying results it doesn't seem to be >> reliable.) > > Last time I run the tests it was showing when not caching was better than > caching.
Yes, I've definitely seen real advantage from not caching (but that was in my own tests, not the performance testsuite.) > I have even added a bench on the unordered containers directly to > show what are the performance of default behavior. For the moment, for the > Foo type used in 54075.cc, the default behavior is not the best one. But I > will submit a patch for that soon with a hash traits telling if it is fast > or not, like we already talk about. Great, thanks.