Date: Tue, 15 Apr 1997 19:02:46 -0700 From: David Greenman <dg@root.com> To: Jaye Mathisen <mrcpu@cdsnet.net> Cc: dyson@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: Doing the FreeBSD tightrope walk. Message-ID: <199704160202.TAA23707@root.com> In-Reply-To: Your message of "Tue, 15 Apr 1997 18:25:18 PDT." <Pine.NEB.3.95.970415182314.23227N-100000@mail.cdsnet.net>
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>What is aggravating I guess is that I can swear that I've seen on this >list statements to the effect of "Bounce buffers support doesn't hurt >anything, so you might as well leave it in". > >Obviously false. The statement means only that bounce buffer support doesn't slow down I/O on DMA controllers that don't need it, i.e. doesn't hurt performance. The buffer pool is still allocated at system startup, however. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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