Date: Tue, 25 Nov 1997 12:46:52 +1100 (EST) From: andrew@ugh.net.au To: "Gregory, Scott, SrA, SAF/AADXT" <gregorys@af.pentagon.mil> Cc: The FreeBSD Questions List <questions@freebsd.org> Subject: RE: Mbuf allocation or lack there of Message-ID: <Pine.BSF.3.96.971125124228.29340E-100000@depravitas.tuu.utas.edu.au> In-Reply-To: <A1D69BFE912ED111A5BB00A0C95DDDDCA1F2@afp1.hq.af.mil>
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On Mon, 24 Nov 1997, Gregory, Scott, SrA, SAF/AADXT wrote: > 3. Does the generic kernel (with max users set to 100 and maxmem set to > 96megs) allocate more mbufs than my custom kernel with maxusers set to > 128 and NMBCLUSTERS set to 4096? The reason I ask this is because the > slightly modified kernel was able to attain a maximum of 2318 mbufs > where as the modified kernel was only able to get to 1136. If you dont have a NMBCLUSTERS= line then they are set to (512 + MAXUSERS * 16). nmbufs are then set to 4 times that amount. GENERIC with 100 users would have (512 + 100 * 16) * 4 = 8448 nmbufs. Your kernel would have 4096 * 4 = 16384 nmbufs. I could be completely wrong.... Andrew
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