From: David Miller <davem@davemloft.net>
To: brouer@redhat.com
Cc: netdev@vger.kernel.org, jeffrey.t.kirsher@intel.com,
akpm@linux-foundation.org, tom@herbertland.com,
alexander.duyck@gmail.com, alexei.starovoitov@gmail.com,
linux-mm@kvack.org, cl@linux.com
Subject: Re: [net-next PATCH V2 0/3] net: mitigating kmem_cache free slowpath
Date: Thu, 11 Feb 2016 11:59:58 -0500 (EST) [thread overview]
Message-ID: <20160211.115958.619724929941930296.davem@davemloft.net> (raw)
In-Reply-To: <20160208121328.8860.67014.stgit@localhost>
From: Jesper Dangaard Brouer <brouer@redhat.com>
Date: Mon, 08 Feb 2016 13:14:54 +0100
> This patchset is the first real use-case for kmem_cache bulk _free_.
> The use of bulk _alloc_ is NOT included in this patchset. The full use
> have previously been posted here [1].
>
> The bulk free side have the largest benefit for the network stack
> use-case, because network stack is hitting the kmem_cache/SLUB
> slowpath when freeing SKBs, due to the amount of outstanding SKBs.
> This is solved by using the new API kmem_cache_free_bulk().
>
> Introduce new API napi_consume_skb(), that hides/handles bulk freeing
> for the caller. The drivers simply need to use this call when freeing
> SKBs in NAPI context, e.g. replacing their calles to dev_kfree_skb() /
> dev_consume_skb_any().
>
> Driver ixgbe is the first user of this new API.
>
> [1] http://thread.gmane.org/gmane.linux.network/384302/focus=397373
Series applied, thanks.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2016-02-11 17:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20160207.142526.1252110536030712971.davem@davemloft.net>
2016-02-08 12:14 ` Jesper Dangaard Brouer
2016-02-08 12:14 ` [net-next PATCH V2 1/3] net: bulk free infrastructure for NAPI context, use napi_consume_skb Jesper Dangaard Brouer
2016-02-08 12:15 ` [net-next PATCH V2 2/3] net: bulk free SKBs that were delay free'ed due to IRQ context Jesper Dangaard Brouer
2016-02-08 12:15 ` [net-next PATCH V2 3/3] ixgbe: bulk free SKBs during TX completion cleanup cycle Jesper Dangaard Brouer
2016-02-11 16:59 ` David Miller [this message]
2016-02-13 11:12 ` [net-next PATCH V2 0/3] net: mitigating kmem_cache free slowpath Tilman Schmidt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160211.115958.619724929941930296.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=akpm@linux-foundation.org \
--cc=alexander.duyck@gmail.com \
--cc=alexei.starovoitov@gmail.com \
--cc=brouer@redhat.com \
--cc=cl@linux.com \
--cc=jeffrey.t.kirsher@intel.com \
--cc=linux-mm@kvack.org \
--cc=netdev@vger.kernel.org \
--cc=tom@herbertland.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox