Profile results for 21.5.21 and 21.5.18

[Marcus Crestani]

>>>>> RT == Raymond Toy writes:
RT> Sometime ago, I mentioned that 21.5-b20 was *way* slower than b18 when
RT> loading my GNUS inbox.
RT>
RT> Well, I've tried it again on 21.5.21, which seems (no measurments) to
RT> be slower than 21.5.20.  It makes my 1 GHz sparc box seem like my old
RT> 300 MHz sparc box. :-(

The performance degradation is due to the new allocator and the new mark 
algorithm. In this release both are enabled by default to have them tested 
for stability, because they are the basis for upcoming changes to the 
garbage collector. Together with the new garbage collector they will 
perform better.

To get comparable results to 21.5.18 you should configure 21.5.21 with 
`--disable-kkcc' and `--disable-mc-alloc'.

-- 
Marcus