Date: Thu, 06 May 2004 09:43:34 -0500 From: Peter Schultz <pmes@bis.midco.net> To: Nate Lawson <nate@root.org> Cc: freebsd-acpi@freebsd.org Subject: Re: OS Interrupted Message-ID: <409A4F16.9080505@bis.midco.net> In-Reply-To: <20040419120026.L22535@root.org> References: <4083FC0D.1060505@bis.midco.net> <20040419105533.T22015@root.org> <408421AA.7040905@bis.midco.net> <20040419120026.L22535@root.org>
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Nate Lawson wrote: > On Mon, 19 Apr 2004, Peter Schultz wrote: > >>Nate Lawson wrote: >> >>>On Mon, 19 Apr 2004, Peter Schultz wrote: >>> >>> >>>>ACPI is working again on my machine but there's a terrible amount of >>>>latency introduced when using it. The mouse cursor is really jerky and >>>>realaudio streams will constantly skip where they never do otherwise. >>>> >>>>Are there ACPI tweaks I can try to see if this can be eliminated? >>> >>>set hw.acpi.force_sci_lo=1 at the loader prompt. >> >>This isn't interrupt storm bad, but it makes listening to >>music very annoying and the mouse cursor really jumpy. > > > So you're saying vmstat -i doesn't show anything out of the ordinary? How > often does the jumpiness happen? If it's once every 30 seconds, it could > be thermal polling. If it's constantly, it's like a GPE issue or > interrupt storm. You could stick a printf in acpi_ec.c:EcGpeQueryHandler > to see if you're getting a lot of GPEs. If that's the case, it will > likely be solved on the next import. You can work around this by removing > the line in acpi.c that sets Gbl*Gpe* to FALSE. > It is the thermal poll event which causes my interruptions. I changed the interval from 10 to 100 so at least I don't have skips so often. Is there a way to make this more cooperative with the rest of the system? Thanks, Pete...
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