Date: Wed, 20 Oct 2004 13:33:24 -0700 (PDT) From: Jason Stone <jason@shalott.net> To: Uwe Doering <gemini@geminix.org> Cc: freebsd-performance@freebsd.org Subject: Re: decreasing interrupt CPU load Message-ID: <20041020132734.B79820@walter> In-Reply-To: <4176C7A8.6030407@geminix.org> References: <004001c4b69d$80e21f40$0c0210ac@ADMIN1> <41766350.4080901@centtech.com><4176C7A8.6030407@geminix.org>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Since you mentioned earlier that you run this on an SMP system, are you > aware that device polling is available only for single CPU kernels, that > is, not in SMP mode? I read somewhere that there wasn't a specific reason for not allowing device polling and smp to be used at the same time, and that it was fairly safe to remove the #ifdef SMP/#error block in sys/kern/kern_poll.c and compile in both smp and device polling. I haven't done this in a production environment, but I've done it on my smp desktop box, and it seems to work okay. -Jason -------------------------------------------------------------------------- Freud himself was a bit of a cold fish, and one cannot avoid the suspicion that he was insufficiently fondled when he was an infant. -- Ashley Montagu -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) Comment: See https://private.idealab.com/public/jason/jason.gpg iD8DBQFBdsuUswXMWWtptckRAjP+AJwIVhDLkgL7FX4+wOkgOz05oD70IwCg2LdF N3+2mycBiVcR1jrAB1L41gc= =rMKb -----END PGP SIGNATURE-----
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