Re: 2.4.19pre1aa1

[Alan Cox]

> On a very lowmem machine the rmap design shouldn't really make a sensible
> difference, the smaller the amount of mapped VM, the less rmap can make
> differences, period.

It makes a big big difference on a low memory box. Try running xfce on
a 24Mb box with the base 2.4.18, 2.4.18 + rmap12f and 2.4.18+aa. Thats
a case where aa definitely loses and without other I/O patches being
applied. Its an X11 based workload with a -lot- of shared pages. Both
rmap and aa materially outperform 2.4.18 base on this workload (and 2.4.17
blew up with out of memory errors)

> IMHO vm-28 should be somehow included into mainline ASAP (before 2.4.19
> is released), then again IMHO we can forget about the 2.4 VM and it will
> be definitely finished.

With luck 8) VM is never finished 8(

Alan