Date: Wed, 27 Oct 2010 21:21:50 +0900 From: Takanori Watanabe <takawata@init-main.com> To: freebsd-acpi@FreeBSD.org Subject: Re: Event based scheduling and USB. Message-ID: <201010271221.o9RCLoWm095086@sana.init-main.com> In-Reply-To: Your message of "Wed, 27 Oct 2010 10:56:26 %2B0300." <4CC7DB2A.2090601@FreeBSD.org>
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In message <4CC7DB2A.2090601@FreeBSD.org>, Alexander Motin wrote: >Takanori Watanabe wrote: >> In message <4CC732C7.50409@FreeBSD.org>, Alexander Motin wrote: >>> Most likely you should be able to avoid interrupt sharing using some >>> additional HPET options, described at hpet(4). >> >> Try to disable using shared IRQ with uhci, the IRQ used by HPET become cpu: >> interrupt and certainly load average goes quite low, > >If you mean "cpuX:timer" - then probably you did something wrong and >system fallen back to LAPIC timer. Hmm, I restrict the HPET IRQ by setting hint.hpet.X.allowed_irqs kenv value to 0xff000000 to avoid using shared IRQ (IRQ20).
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