On 03/17/2017 05:01 PM, Eric Dumazet wrote:
On Fri, 2017-03-17 at 14:13 -0700, Chris Kuiper wrote:
This adds a new socket option "SO_RXQ_ALLOC" that enables providing
the RX queue buffer allocation as ancillary data from the recvmsg()
system call. The value reported is a byte number and together with
the RX queue size (obtained via getsockopt(SO_RCVBUF) can be used to
calculate a percentage value on how full the socket buffer is.
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Seems a lot of overhead, and only UDP would be supported.
I very much prefer Josh Hunt proposal
( https://patchwork.ozlabs.org/patch/738250/ )
Ie using a separate getsockopt() call instead of adding code to UDP fast
path ?
Yes, let me know and I can send a patch adding a sockopt to return all
of the meminfo vars.
