Date: Wed, 15 Sep 2004 10:21:52 +0530 From: Subhro <subhro.kar@gmail.com> To: Gary Aitken <garya@dreamchaser.org> Cc: freebsd-questions@freebsd.org Subject: Re: shared irqs and performance Message-ID: <b2807d0404091421516ce5efbc@mail.gmail.com> In-Reply-To: <41479332.3070108@dreamchaser.org> References: <41479332.3070108@dreamchaser.org>
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The card won't be facing any stability problems. And there is no reason why you should force the card to another IRQ because modern motherboards DOES allow IRQ sharing and there is no performance hits for it. Regards S. On Tue, 14 Sep 2004 18:56:18 -0600, Gary Aitken <garya@dreamchaser.org> wrote: > On my 4.10 system, I added in a third ethernet device. > > However, I see from dmesg that the irq assigned is shared with my > scsi controller: > > de1: <Digital 21041 Ethernet> port 0xf880-0xf8ff mem > 0xfdfffc00-0xfdfffc7f irq 9 at device 16.0 on pci0 > bt0: <Buslogic Multi-Master SCSI Host Adapter> port 0xfcec-0xfcef > irq 9 at device 17.0 on pci0 > > Since the driver was already present, things went ok, in the sense > that the system booted and scsi devices still work. > > 1. Will this work reliably (I haven't actually hooked anything > to the new network card yet)? > 2. Even if it does work, I assume it would be better to force > it to an unused irq for performance reasons? > > Thanks, > > Gary > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > -- Subhro Sankha Kar School of Information Technology Block AQ-13/1 Sector V ZIP 700091 India
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