Date: Mon, 20 Jan 2014 20:33:29 -0800 From: Dennis Glatting <freebsd@pki2.com> To: freebsd-questions@freebsd.org Subject: confused by these mbuf stats Message-ID: <1390278809.3668.128.camel@btw.pki2.com>
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I have a 10.0 system (r260881) with multiple applications reading data over NFS. I'm a bit confused by the stats below where 1478 requests for 9k bufs were denied yet 9k numbers (current/cache/total/max) seem to indicate that should never happen. This system is reading ~800Mb from a 1Gb ethernet. I'm a bit confused what these numbers are telling me. Can you explain? root@mc:# netstat -m 32791/18824/51615 mbufs in use (current/cache/total) 0/7136/7136/4194304 mbuf clusters in use (current/cache/total/max) 0/7130 mbuf+clusters out of packet secondary zone in use (current/cache) 6/1187/1193/2097408 4k (page size) jumbo clusters in use (current/cache/total/max) 32764/2604/35368/16779264 9k jumbo clusters in use (current/cache/total/max) 0/0/0/2097408 16k jumbo clusters in use (current/cache/total/max) 303097K/47162K/350259K bytes allocated to network (current/cache/total) 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) 0/0/0 requests for mbufs delayed (mbufs/clusters/mbuf+clusters) 0/0/0 requests for jumbo clusters delayed (4k/9k/16k) 0/1478/0 requests for jumbo clusters denied (4k/9k/16k) 0 requests for sfbufs denied 0 requests for sfbufs delayed 0 requests for I/O initiated by sendfile root@mc:#
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