-----Original Message----- > Date: Tue, 13 Mar 2018 14:08:20 +0000 > From: "Van Haaren, Harry" <[email protected]> > To: "Eads, Gage" <[email protected]>, "[email protected]" <[email protected]> > CC: "[email protected]" <[email protected]> > Subject: RE: [PATCH v2] event/sw: perform partial burst enqueues > > > From: Eads, Gage > > Sent: Monday, March 12, 2018 2:55 PM > > To: [email protected] > > Cc: [email protected]; Van Haaren, Harry > > <[email protected]> > > Subject: [PATCH v2] event/sw: perform partial burst enqueues > > > > Previously, the sw PMD would enqueue either all or no events, depending on > > if enough inflight credits were available for the new events in the burst. > > If a port is enqueueing a large burst (i.e. a multiple of the credit update > > quanta), this can result in suboptimal performance, and requires an > > understanding of the sw PMD implementation (in particular, its credit > > scheme) to tune an application's burst size. > > > > This affects software that enqueues large bursts of new events, such as the > > ethernet event adapter which uses a 128-deep event buffer, when the input > > packet rate is sufficiently high. > > > > This change makes the sw PMD enqueue as many events as it has credits, if > > there are any new events in the burst. > > > > Signed-off-by: Gage Eads <[email protected]> > > > Agree that making forward progress by enqueuing what we have credits for > makes sense for the application. > > No performance degradation here, thanks for the patch: > > Acked-by: Harry van Haaren <[email protected]>
Applied to dpdk-next-eventdev/master. Thanks.
