From: Thomas Gleixner <tglx@linutronix.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
Carsten Emde <C.Emde@osadl.org>
Subject: Re: [PREEMPT RT] SLUB and split softirq lock for v3.2-rt
Date: Wed, 13 Feb 2013 18:41:48 +0100 (CET) [thread overview]
Message-ID: <alpine.LFD.2.02.1302131841340.22263@ionos> (raw)
In-Reply-To: <1360776274.23152.7.camel@gandalf.local.home>
On Wed, 13 Feb 2013, Steven Rostedt wrote:
> On Wed, 2013-02-13 at 17:11 +0100, Sebastian Andrzej Siewior wrote:
> > 3.2-rt is a long term supported kernel, which lacks two RT features
> > from 3.6: SLUB support and the split softirq lock implementation.
> >
> > SLUB has a way better performance than SLAB on RT and the split
> > softirq lock implementation is necessary especially for realtime
> > networking applications.
> >
> > The following patch series backports these features to 3.2-rt.
> >
> > Steven, could you please apply these patches to a separate
> > 3.2-rt-features branch?
>
> Is it possible to separate these two features into two different patch
> sets. I would like to apply the softirq changes first, and then apply
> the slub changes.
>
> Although it looks as though the first half is softirq only 1-8, and the
> second half is slub related 9-16. If that's the case, I'll just pull in
> 1-8 first, play with them, and then do 9-16.
That's correct.
next prev parent reply other threads:[~2013-02-13 17:41 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-13 16:11 [PREEMPT RT] SLUB and split softirq lock for v3.2-rt Sebastian Andrzej Siewior
2013-02-13 16:11 ` [PATCH 01/16] softirq: Make serving softirqs a task flag Sebastian Andrzej Siewior
2013-02-13 16:11 ` [PATCH 02/16] softirq: Split handling function Sebastian Andrzej Siewior
2013-02-13 16:11 ` [PATCH 03/16] softirq: Split softirq locks Sebastian Andrzej Siewior
2013-02-13 16:11 ` [PATCH 04/16] rcu: rcutiny: Prevent RCU stall Sebastian Andrzej Siewior
2013-02-16 20:59 ` Paul E. McKenney
2013-02-18 15:02 ` Steven Rostedt
2013-02-13 16:12 ` [PATCH 05/16] softirq: Adapt NOHZ softirq pending check to new RT scheme Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 06/16] softirq: Add more debugging Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 07/16] softirq: Fix nohz pending issue for real Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 08/16] net: Use local_bh_disable in netif_rx_ni() Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 09/16] FIX [1/2] slub: Do not dereference NULL pointer in node_match Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 10/16] FIX [2/2] slub: Tid must be retrieved from the percpu area of the current processor Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 11/16] slub: Use correct cpu_slab on dead cpu Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 12/16] smp: introduce a generic on_each_cpu_mask() function Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 13/16] smp: add func to IPI cpus based on parameter func Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 14/16] slub: only IPI CPUs that have per cpu obj to flush Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 15/16] mm: Enable SLUB for RT Sebastian Andrzej Siewior
2013-02-13 16:12 ` [PATCH 16/16] slub: Enable irqs for __GFP_WAIT Sebastian Andrzej Siewior
2013-02-13 17:24 ` [PREEMPT RT] SLUB and split softirq lock for v3.2-rt Steven Rostedt
2013-02-13 17:41 ` Thomas Gleixner [this message]
2013-02-19 1:54 ` Li Zefan
2013-02-19 1:56 ` Li Zefan
2013-02-19 4:06 ` Steven Rostedt
2013-02-19 6:17 ` Mike Galbraith
2013-04-24 2:36 ` Steven Rostedt
2013-04-24 8:11 ` Sebastian Andrzej Siewior
2013-04-24 15:45 ` Steven Rostedt
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