Date: Wed, 21 Feb 1996 11:46:44 +0900 From: nao@sbl.cl.nec.co.jp (Naoki Hamada) To: hackers@freebsd.org Subject: Re: mbuf enhancement patch Message-ID: <199602210246.LAA18404@sirius.sbl.cl.nec.co.jp>
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>>I found the ep driver always keeps some mbuf's in its pool. Is this >>because mbuf allocation is too expensive for boards which equip small >>receive buffer? If this is the case, some improvement (not mine :-) is >>desirable. > > I think that's what the author thought, but the FIFO on the 3c509 should be >sufficiently large enough to not need the extra 1% of speed that having the >private pool gets you. Our malloc implementation is quite efficient, actually. The old 3c509 has 2k bytes RX FIFO. Is this large enough? -nao
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