Interesting ubench scores for FreeBSD 4.11, 5.4, 6.0beta3 and DFly-Preview

Tomaž Borštnar tomaz.borstnar at
Sat Sep 3 04:00:32 PDT 2005

Kris Kennaway wrote:
Did you remember to disable the debugging features in FreeBSD 6
(WITNESS, INVARIANTS, malloc debugging)?
I commented all debugging features I could found.WITNESS and INVARIANTS for sure. How do I turn off malloc debug? I used 
the same practice for FreeBSD 6beta3 on amd64 yet it performed actually extremely well. I was pleasently surprised with 
the results for 64bit mode.

 If not, you're incurring a
significant (usually >30%) performance penalty, which is consistent
with your numbers.
Not sure about malloc stuff, but usual things were commented out. Can check kernel configs when I come back and post 
diffs to GENERIC here.


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