Re: [PATCH] mbuf: optimize detach direct buffer

[Thomas Monjalon <thomas@monjalon.net>]

05/01/2026 11:31, Bruce Richardson:
> On Sat, Jan 03, 2026 at 05:40:54PM +0000, Morten Brørup wrote:
> > When rte_pktmbuf_prefree_seg() resets an mbuf about to be freed, it
> > doesn't write the fields that already have the required values. This
> > saves a memory store operation when all the fields already have the
> > required values.
> > 
> > This patch adds the same optimization to __rte_pktmbuf_free_direct(),
> > to improve the performance for freeing a direct buffer being detached from
> > a packet mbuf, i.e. saving a memory store operation when all the fields
> > (of the buffer being freed) already have the required values.
> > 
> > Signed-off-by: Morten Brørup <mb@smartsharesystems.com>
> > ---
> >  lib/mbuf/rte_mbuf.h | 16 +++++++++++-----
> >  1 file changed, 11 insertions(+), 5 deletions(-)
> > 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>

Applied, thanks.