From: Eric Dumazet <eric.dumazet@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: David Miller <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
Michael Chan <mchan@broadcom.com>,
Eilon Greenstein <eilong@broadcom.com>,
Christoph Hellwig <hch@lst.de>,
Christoph Lameter <cl@linux-foundation.org>
Subject: Re: [PATCH net-next] net: allocate skbs on local node
Date: Tue, 12 Oct 2010 09:49:53 +0200 [thread overview]
Message-ID: <1286869793.2732.24.camel@edumazet-laptop> (raw)
In-Reply-To: <20101012002435.f51f2c0e.akpm@linux-foundation.org>
Le mardi 12 octobre 2010 à 00:24 -0700, Andrew Morton a écrit :
> I'd love to forget it, but it's faster for some things (I forget
> which). Which is why it's still around.
Yes, two years ago it was true on pathological/obscure cases.
Every time I did the comparison, SLUB won.
You asked me, I did yet another test this morning, and 40% is pretty
serious, I believe.
>
> And the ghastly thing about this is that you're forced to care about it
> too because some people are, apparently, still using it.
>
Yes, some people (in my company) still use linux 2.6.9 32bit on HP G6/G7
machines, I know...
I am not saying we should not care, but for any serious network workload
on NUMA arches, SLUB is the best, and seeing Christoph recent work, it
might even get better.
BTW, I believe all modern distros ship SLUB, dont they ?
next prev parent reply other threads:[~2010-10-12 7:56 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-11 23:03 [PATCH net-next] bnx2x: dont use netdev_alloc_skb() Eric Dumazet
2010-10-11 23:22 ` Eric Dumazet
2010-10-12 5:03 ` Tom Herbert
2010-10-12 5:16 ` Eric Dumazet
2010-10-12 9:12 ` Vladislav Zolotarov
2010-10-14 17:39 ` David Miller
2010-10-14 18:17 ` Eilon Greenstein
2010-10-14 18:20 ` Eric Dumazet
2010-10-14 18:25 ` David Miller
2010-10-14 18:17 ` Tom Herbert
2010-10-12 5:05 ` [PATCH net-next] net: allocate skbs on local node Eric Dumazet
2010-10-12 5:35 ` Tom Herbert
2010-10-12 6:03 ` Andrew Morton
2010-10-12 6:58 ` Eric Dumazet
2010-10-12 7:24 ` Andrew Morton
2010-10-12 7:49 ` Eric Dumazet [this message]
2010-10-12 7:58 ` Andrew Morton
2010-10-12 11:08 ` Pekka Enberg
2010-10-12 12:50 ` Christoph Lameter
2010-10-12 19:43 ` David Rientjes
2010-10-13 6:17 ` Pekka Enberg
2010-10-13 6:31 ` David Rientjes
2010-10-13 6:36 ` Pekka Enberg
2010-10-13 16:00 ` Christoph Lameter
2010-10-13 20:48 ` David Rientjes
2010-10-13 21:43 ` Christoph Lameter
2010-10-13 22:41 ` David Rientjes
2010-10-14 6:22 ` Pekka Enberg
2010-10-14 7:23 ` David Rientjes
2010-10-15 14:23 ` Christoph Lameter
2010-10-14 15:31 ` Tom Herbert
2010-10-14 16:05 ` Eric Dumazet
2010-10-15 16:57 ` Christoph Lameter
2010-10-14 19:27 ` Andrew Morton
2010-10-14 19:59 ` Eric Dumazet
2010-10-16 18:54 ` David Miller
2010-10-12 16:07 ` [BUG net-next] bnx2x: all traffic comes to RX queue 0 Eric Dumazet
2010-10-12 16:20 ` Dmitry Kravkov
2010-10-12 18:11 ` Eric Dumazet
2010-10-12 18:18 ` Vladislav Zolotarov
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=1286869793.2732.24.camel@edumazet-laptop \
--to=eric.dumazet@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=cl@linux-foundation.org \
--cc=davem@davemloft.net \
--cc=eilong@broadcom.com \
--cc=hch@lst.de \
--cc=mchan@broadcom.com \
--cc=netdev@vger.kernel.org \
/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