DragonFly bugs List (threaded) for 2007-04
DragonFly BSD
DragonFly bugs List (threaded) for 2007-04
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Re: lenovo R60 SMP/APIC_IO woes


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 23 Apr 2007 08:43:40 -0700 (PDT)

:Whoa! 4 minutes!  Very cool!
:
:Mucho better!  :) :)
:
:Now .. speculating as to the cause ... could it be that interrupts are only being delivered to
:CPU0 and not CPU1 ?  That would explain the roughly 1/2 speed slow down during the test if both
:cpus were alternating running compile processes ..
:
:Andrew

    Nope. Well, yup... but that's normal.  When the PIC is used interrupts
    are usually only delivered to one cpu.  But it wouldn't cause a
    slow down.  Performance would be about the same.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>



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