confused by these mbuf stats

[Dennis Glatting]

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 at 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 at mc:#