linux-kernel - Re: [PATCH 15/18] staging: fsl-dpaa2/eth: Reorder priv fields

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Date:   Tue, 13 Jun 2017 12:03:58 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Ioana Radulescu <ruxandra.radulescu@....com>
Cc:     devel@...verdev.osuosl.org, stuyoder@...il.com, arnd@...db.de,
        linux-kernel@...r.kernel.org, agraf@...e.de,
        Bharat.Bhushan@....com, bogdan.purcareata@....com,
        linux-arm-kernel@...ts.infradead.org, laurentiu.tudor@....com
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.

Please fix up and resend.

thanks,

greg k-h