Re: [PATCH net-next] sctp: support per-association stats via a new SCTP_GET_ASSOC_STATS call

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Hi Neil & Vlad,

On Fri, Oct 26, 2012 at 10:37:04AM -0400, Neil Horman wrote:
> We already have files in /proc/net/sctp to count snmp system-wide totals,
> per-endpoint totals, and per association totals.  Why do these stats differently
> instead of just adding them the per-association file?  I get that solaris does
> this, but its not codified in any of the RFC's or other standards.  I would
> really rather see something like this go into the interfaces we have, rather
> than creating a new one.
> 
> I also am a bit confused regarding the stats themselves.  Most are fairly clear,
> but some seem lacking (you count most things sent and received, but only count
> received gap acks).  Others seems vague and or confusing (when counting
> retransmitted chunks and packets, how do you count a packet that has both new
> and retransmitted chunks)?  And the max observed rto stat is just odd.  Each
> transport has an rto value, not each association, and you cal already see the
> individual transport rto values in /proc/net/sctp/remaddr.

thanks a lot for your time reviewing this. I will try to address all
your comments in a second version of the patch. One thing I am not too
sure though: do you prefer me extending /proc/net/sctp/* or implement a
new call.

I ask because from a previous private communication with Vlad the new
socket option seemed to be the preferred approach.
I am fine either way just let me know ;)

cheers,
-- 
Michele Baldessari            <michele@xxxxxxxxxx>
C2A5 9DA3 9961 4FFB E01B  D0BC DDD4 DCCB 7515 5C6D
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