From: Bruce Richardson <bruce.richardson@intel.com>
To: "Morten Brørup" <mb@smartsharesystems.com>
Cc: <dev@dpdk.org>
Subject: Re: [PATCH] mbuf: optimize detach direct buffer
Date: Mon, 5 Jan 2026 10:31:43 +0000 [thread overview]
Message-ID: <aVuTD6Ex9k9kXxMu@bricha3-mobl1.ger.corp.intel.com> (raw)
In-Reply-To: <20260103174054.121246-1-mb@smartsharesystems.com>
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>
next prev parent reply other threads:[~2026-01-05 10:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-03 17:40 Morten Brørup
2026-01-05 10:31 ` Bruce Richardson [this message]
2026-01-11 16:01 ` Konstantin Ananyev
-- strict thread matches above, loose matches on Subject: below --
2026-01-03 17:34 Morten Brørup
2026-01-03 17:41 ` Morten Brørup
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