Date: Wed, 4 Sep 2002 22:20:32 +0100 From: Dominic Marks <dominic_marks@btinternet.com> To: Mike Hoskins <mike@adept.org> Cc: Charles Sprickman <spork@inch.com>, stable@freebsd.org Subject: Re: interpreting netstat -m output Message-ID: <20020904212032.GA1688@gallium> In-Reply-To: <20020904134622.M51653-100000@fubar.adept.org> References: <Pine.BSF.4.44.0209041639320.23355-100000@shell.inch.com> <20020904134622.M51653-100000@fubar.adept.org>
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On Wed, Sep 04, 2002 at 01:47:58PM -0700, Mike Hoskins wrote: > On Wed, 4 Sep 2002, Charles Sprickman wrote: > > What is the difference between the "mbufs in use" line and the "mbuf > > clusters in use" line? An mbuf is a fixed length structure which contains network data. An mbuf cluster is associated with an area of memory which is used for storing more data than you can fit in a single mbuf. According the D&I 4.4 an mbuf is 128 bytes and (not all of this is available for data storage), an mbuf cluster varies in size, but defaults to 1024 bytes (but according to the book this may be different depending on CPU architecture). > I've wondered precisely this; perhaps one specifically relates to the > network? The farthest I got was netstat(1), which points to a nonexistant > mbuf(9). > > Later, > -Mike Hey Mike :-) > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message -- Dominic Marks Computer & Politics Geek [work]::[npl.co.uk] << dominic.marks at npl.co.uk >> [educ]::[umist.ac.uk] << notyet-known at umist.ac.uk >> [home]::[btinternet] << dominic_marks at btinternet.com >> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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