> -----Original Message----- > From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] > Sent: Tuesday, June 13, 2017 1:04 PM > To: Ruxandra Ioana Radulescu <ruxandra.radulescu@xxxxxxx> > Cc: devel@xxxxxxxxxxxxxxxxxxxx; stuyoder@xxxxxxxxx; arnd@xxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx; agraf@xxxxxxx; Bharat Bhushan > <bharat.bhushan@xxxxxxx>; Bogdan Purcareata > <bogdan.purcareata@xxxxxxx>; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; > Laurentiu Tudor <laurentiu.tudor@xxxxxxx> > Subject: Re: [PATCH 15/18] staging: fsl-dpaa2/eth: Reorder priv fields > > On Tue, Jun 06, 2017 at 10:00:38AM -0500, Ioana Radulescu wrote: > > Reorder fields in the device's private structure such that > > the ones most used on the hotpath are at the beginning of > > the structure. > > > > This brings a small performance improvement due to better > > cache usage. > > Really? What kind of performance improvement? Always be specific. Fair point, thanks. The test scenario was ipfwd with small frames and the improvement ~1%, but I took this patch from an internal repo, so I need to redo the measurements on the current tree before resending. > > Please fix up and resend. We're preparing a larger patchset with several optimizations, I'll probably include the v2 there. Thanks, Ioana _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
