Date: Wed, 29 Jul 1998 23:05:22 -0700 From: Mike Smith <mike@smith.net.au> To: Julian Elischer <julian@whistle.com> Cc: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>, current@FreeBSD.ORG Subject: Re: SMP kernels... how many processes can be in ? Message-ID: <199807300605.XAA00317@antipodes.cdrom.com> In-Reply-To: Your message of "Wed, 29 Jul 1998 20:35:27 PDT." <Pine.BSF.3.95.980729203117.9088I-100000@current1.whistle.com>
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> This is effectlively what Luigi did with his 'flow pointer' > however it probably should be an extensible scheme > so that new 'hacks' can be added to the system and make use of it. > the trouble with just using a pointer to something is that the something > needs to be freed some time. and it may need to be allocated at unknown > spl etc. > > Luigi found that there were a lot of places tha had to be hackedto know > about the new pointer. Don't point to it from the mbuf, put it in the mbuf. Use a cluster if you like. Call it "in-band signalling". 8) > julian > > > > On Tue, 28 Jul 1998, Garrett Wollman wrote: > > > <<On Mon, 27 Jul 1998 16:55:58 -0700 (PDT), Julian Elischer <julian@whistle.com> said: > > > > > trouble is that there needs to be some place to store data > > > on a 'packet by packet' basis, The data is generated at one point in > > > processing and needed at another.. > > > > Stick it in the (mbuf) packet header. If it's too big, stick a > > pointer to it in the packet header. > > > > -GAWollman > > > > -- > > Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same > > wollman@lcs.mit.edu | O Siem / The fires of freedom > > Opinions not those of| Dance in the burning flame > > MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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