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| skmem:(r<rmem_alloc>,rb<rcv_buf>,t<wmem_alloc>,tb<snd_buf>,
f<fwd_alloc>,w<wmem_queued>,o<opt_mem>,
bl<back_log>,d<sock_drop>)
<rmem_alloc>
the memory allocated for receiving packet
<rcv_buf>
the total memory can be allocated for receiving
packet
<wmem_alloc>
the memory used for sending packet (which has been
sent to layer 3)
<snd_buf>
the total memory can be allocated for sending
packet
<fwd_alloc>
the memory allocated by the socket as cache, but
not used for receiving/sending packet yet. If need
memory to send/receive packet, the memory in this
cache will be used before allocate additional
memory.
<wmem_queued>
The memory allocated for sending packet (which has
not been sent to layer 3)
<ropt_mem>
The memory used for storing socket option, e.g.,
the key for TCP MD5 signature
<back_log>
The memory used for the sk backlog queue. On a
process context, if the process is receiving
packet, and a new packet is received, it will be
put into the sk backlog queue, so it can be
received by the process immediately
<sock_drop>
the number of packets dropped before they are de-
multiplexed into the socket
|
