> include/net/sctp/structs.h | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
> index d8e464aacb20..932f2780d3a4 100644
> --- a/include/net/sctp/structs.h
> +++ b/include/net/sctp/structs.h
> @@ -602,6 +602,9 @@ struct sctp_chunk {
> /* This needs to be recoverable for SCTP_SEND_FAILED events. */
> struct sctp_sndrcvinfo sinfo;
>
> + unsigned long prsctp_param;
> + int sent_count;
> +
> /* Which association does this belong to? */
> struct sctp_association *asoc;
>
> --
> 2.5.5
>
> Then the performance dropped to the same as the bisected commit
> a6c2f792873a:
> $ cat 4.7.0-rc6-01198-g98dd2532b14e/0/netperf.json
> {
> "netperf.Throughput_Mbps": [
> 754.494375
> ]
> }
>
> I think this agrees with the perf data in that the newly added function
> doesn't show up in the perf-profile but still, the performance drops.
> So the only possible reason is the newly added fields to the sctp_chunk
> structure.
>
> Is this expected?
interesting , you didn't include the modification of the functions
parts, right ?
you mean only this two line:
> + unsigned long prsctp_param;
> + int sent_count;ca;
caused the performance issue ?
