Date: Mon, 10 Nov 2003 01:06:39 +0000 From: Jens Rehsack <rehsack@liwing.de> To: John Baldwin <jhb@FreeBSD.org> Cc: current@freebsd.org Subject: Re: New interrupt code slows hyperthreading down Message-ID: <3FAEE49F.4080003@liwing.de> In-Reply-To: <XFMail.20031109185854.jhb@FreeBSD.org> References: <XFMail.20031109185854.jhb@FreeBSD.org>
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John Baldwin wrote: > On 07-Nov-2003 Jens Rehsack wrote: > >>John Baldwin wrote: >> >>>Thanks, IRQ 16 was programmed as level, activelo, so it wasn't an >>>off by one error there. Grr. >> >>I've seen, but I didn't found a bios option to set it to edge. >>Is there anything I can do on my machine to fix the problem, or >>should Asus be notified for a bios update or ...? > > No, level is correct. The APIC code doesn't mask edge triggered > interrupts, and if it thought IRQ 16 was edge rather than level, > that could explain the high interrupt rate. Since that isn't the > case I'm not sure why it's triggering so many interrupts. Ok, but what I can do now to get my machine running with HTT again? It's out main development machine and with the single-processor config it runs mostly with a very high load. Is there any chance to get it running just before the new interrupt code. Could it be fixed? Regards, Jens
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