07/04/2026 10:44, Morten Brørup: > > From: Thomas Monjalon [mailto:[email protected]] > > Sent: Tuesday, 7 April 2026 10.06 > > > > In order to illustrate how mbuf is kept small, > > add a link to a page showing the mbuf layout for each version. > > > > Signed-off-by: Thomas Monjalon <[email protected]> > > --- > > doc/guides/prog_guide/mbuf_lib.rst | 11 ++++++----- > > 1 file changed, 6 insertions(+), 5 deletions(-) > > > > diff --git a/doc/guides/prog_guide/mbuf_lib.rst > > b/doc/guides/prog_guide/mbuf_lib.rst > > index 382bfbdca4..97f8e72356 100644 > > --- a/doc/guides/prog_guide/mbuf_lib.rst > > +++ b/doc/guides/prog_guide/mbuf_lib.rst > > @@ -8,11 +8,12 @@ The Packet (MBuf) library provides the ability to > > allocate and free buffers (mbu > > that may be used by the DPDK application to store message buffers. > > The message buffers are stored in a mempool, using the > > :doc:`mempool_lib`. > > > > -A rte_mbuf struct generally carries network packet buffers, but it can > > actually > > -be any data (control data, events, ...). > > -The rte_mbuf header structure is kept as small as possible and > > currently uses > > -just two cache lines, with the most frequently used fields being on > > the first > > -of the two cache lines. > > +A ``struct rte_mbuf`` generally carries network packet buffers, > > +but it can actually be any data (control data, events, etc). > > +The ``rte_mbuf`` header structure is > > +`kept as small as possible > > <https://doc.dpdk.org/struct/mbuf/history.html>`_ > > +and currently uses just two 64-byte cache lines, > > +with the most frequently used fields being on the first of the two > > cache lines. > > > > Design of Packet Buffers > > ------------------------ > > -- > > 2.53.0 > > Hadn't noticed that illustration before, so good idea linking to it here. > > Acked-by: Morten Brørup <[email protected]>
Applied
