DragonFly commits List (threaded) for 2009-05
DragonFly BSD
DragonFly commits List (threaded) for 2009-05
[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]

Re: DragonFly-2.3.0.864.gc5b83 master sys/platform/pc32/apic mpapic.c sys/platform/pc32/isa clock.c sys/platform/pc64/isa clock.c sys/platform/vkernel/platform systimer.c sys/sys systimer.h


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 4 May 2009 08:01:46 -0700 (PDT)

    450 interrupts/sec sounds ok for an idle system.  I'd expect a higher
    number, actually.

    I wonder if the load calculations are being messed up by the C3
    state.  The code path for the per-cpu hardclock interrupt has always
    been fairly sensitive.  With the 8254 it was being driven by IPIs.
    Now it is being driven by an actual interrupt so there might be an
    issue with how it distinguishes the system state when accounting for
    the clock tick.

						-Matt



[Date Prev][Date Next]  [Thread Prev][Thread Next]  [Date Index][Thread Index]