> H and < should only make a difference if you are low on memory. R is on
> by default in 5.0 anyway, due to A and J being on by default.  Setting
> malloc.conf to "aj" makes it work like it does in 4.*.

Here are some benchmarks to illustrate that, using ubench (from
/usr/ports/benchmarks) on a dual xeon machine.  Ubench MEM is
about 25% higher with "aj" than with the default.


                4.7         5.0 with no        5.0 with "aj"
                            malloc.conf
              -----------------------------------------------
Ubench CPU:   171031             159942               162281
Ubench MEM:    69884              60104                74198


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