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PAE and balloon benchmarks
FWIW, I just uploaded a wiki page for my results regarding PAE
- expect 10-20% overhead in specific benchmarks for PAE; nothing new
here, there have been critics on PAE performance loss multiple times.
- yes, having no MP capable kernel for Xen makes a big different if you
launch parallel builds within the same domain :)
- balloon thread added by cherry@ does not seem to introduce regression
for process/thread creation and scheduling.
I have (more) detailed results if anybody wants them.
In essence, unless you need some functionality only offered by PAE (NX
bit - when supported - , 4GB+ physical memory support without having 64
bits, or Xen 3.3+ compatilibty), I suppose you are better off going the
64 bits route, especially with 32 bits compat mode.
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