The machine in question is a 6.1-RC. It serves a quite big number
of clients (the lowest concurrency figures are around 2000, with peaks
up to 9000). The in/out buffers for tcp sockets are 8K each.
kern.ipc.nmbclusters is set to 327680. The firewall is pf, with the
following limits: 131072 states and 262144 src-nodes. So more than
generous limits. However, $subj statistics keep growing and growing.
The machine has rebooted a few times, without dumping any core upon
restart, although debugging support (both symbols and kgdb) is
compiled in.
Should I worry about the aforementioned stats ? If so, any idea of
how to narrow the issue down ? I can't test much on the machine,
unfortunately.
P.S. I've the feeling that the growth rate of allocation failures went
downhill since I removed the pfsync support, but it's just a feeling,
I didn't measure it accurately.
--
If it's there, and you can see it, it's real.
If it's not there, and you can see it, it's virtual.
If it's there, and you can't see it, it's transparent.
If it's not there, and you can't see it, you erased it.
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