Date: Tue, 02 Dec 1997 12:56:50 -0800 From: Julian Elischer <julian@whistle.com> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: current@FreeBSD.ORG Subject: Re: cvs commit: src/sys/kern vfs_aio.c Message-ID: <34847612.446B9B3D@whistle.com> References: <2923.881086024@critter.freebsd.dk>
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Poul-Henning Kamp wrote: > > >>And yes, the reason is performance. > > > >Then you should back the changes out IMMEDIATELY, as > > > > *retval = 10; > > > >is exactly the same speed as: > > > > p->p_retval[0] = 10; > > BZZZTT! Wrong answer. > > We save the time it takes to push the &retval on the stack on ALL syscalls. Ok, ok, why don't you writ ea 2 paragraph description of the change.. before amd after.. and say why you think it is a win. address compatibilty for people who have kernel modules for bot NetBSD and FreeBSD (e.g. the ipfilter stuff) we do the following: have a quick discussion about the pro's and cons. and get David to vote.. after all that's why we voted him to be "Chief architect" remember? I know Sean will feel a lot better if he knows it's had a bit more ratification.. Poul. Can you think > > -- > Poul-Henning Kamp FreeBSD coreteam member > phk@FreeBSD.ORG "Real hackers run -current on their laptop."
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