Please help me tune FreeBSD for

Jeff Roberson jroberson at
Fri Oct 24 17:15:54 PDT 2003

On Sat, 25 Oct 2003, Lukas Ertl wrote:

> On Fri, 24 Oct 2003, Felix von Leitner wrote:
> > Please also tell me if you have suggestions for other benchmarks that
> > say something about the scalability of an operating system, that I could
> > (and should) include in my benchmark suite.
> If you have some spare time, I'd really be interested in how the new
> SCHED_ULE scheduler compares against the traditional (default) SCHED_4BSD
> scheduler (although SCHED_ULE has been designed for SMP, some UP results
> are sure nice to have).

ULE has developed some performance problems.  I'm not sure where they came
from but I will be working on it in the next few weeks.  Until then I
wouldn't recommend any benchmarking with it unless the CPU affinity will
really be a huge win.

> Regarding performance tuning: did you already look at accf_http(9) and/or
> accf_data(9)?  (Although it would probably need some rewrite of your
> code...)
> regards,
> le
> --
> Lukas Ertl                             eMail: l.ertl at
> UNIX Systemadministrator               Tel.:  (+43 1) 4277-14073
> Vienna University Computer Center      Fax.:  (+43 1) 4277-9140
> University of Vienna         
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