On 11/15/2011 21:48, Hans Petter Selasky wrote:
I will get those delay changes into the mainline code.
http://svn.freebsd.org/changeset/base/227541
The hz / 250 should not be changed. That is defined by USB I think.
Only after reading the discussion of you with mdf@ concerning that
commit, I realized that I have kern.hz=100 in /boot/loader.conf, too,
and that never before caused trouble for me using USB devices, either.
I got that from http://wiki.freebsd.org/TuningPowerConsumption while I
was on 7 or 8 , but I guess power consumption tuning should be different
on 9 with the new timers and I have to rethink that, soon.
That Wiki page should be changed, if the recommendations are in
violation with proper USB functionality.
Anyhow, does that change anything? Shall I increase kern.hz before
anything else?
Cheers,
Jan Henrik
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