From: Christoph Lameter <cl@linux.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Alexander Duyck <alexander.duyck@gmail.com>,
linux-mm@kvack.org, netdev@vger.kernel.org
Subject: Re: [RFC PATCH] slub: RFC: Improving SLUB performance with 38% on NO-PREEMPT
Date: Mon, 8 Jun 2015 04:39:38 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.11.1506080438570.10781@east.gentwo.org> (raw)
In-Reply-To: <20150608112359.04a3750e@redhat.com>
On Mon, 8 Jun 2015, Jesper Dangaard Brouer wrote:
> My real question is if disabling local interrupts is enough to avoid this?
Yes the initial release of slub used interrupt disable in the fast paths.
> And, does local irq disabling also stop preemption?
Of course.
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next prev parent reply other threads:[~2015-06-08 9:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-04 10:31 Jesper Dangaard Brouer
2015-06-05 2:37 ` Eric Dumazet
2015-06-08 9:23 ` Jesper Dangaard Brouer
2015-06-08 9:39 ` Christoph Lameter [this message]
2015-06-08 9:58 ` Jesper Dangaard Brouer
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