Clifton Royston ha scritto:
If you are accessing a software emulation of a SCSI disk, I would
offhand expect the CPU load to go up substantially when you are reading
or writing it at the maximum achievable bandwidth. You can't expect
normal relative load results under an emulator, and while most
application or kernel code runs natively, I/O under VMWare will zoom in
and out of the emulator a lot. I'm afraid I can't give you a
definitive answer as I have VMWare but haven't set up FreeBSD under it
yet.
-- Clifton
Thanks Clifton,
my problem is that system (console) becomes very unresponsive when I/O
is writing at maximum bandwidth.
Anyway, system becomes more responsive when using ULE scheduler instead
of 4BSD during I/O.
Is there a way to limit the maximum I/O bandwidth used by the controller?
Daniel
--
WBR,
Cordiali Saluti,
Daniel Ponticello, VP of Engineering
Network Coordination Centre of Skytek
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