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Message-ID: <64eda4de845c8d98e0dcb7f6fa3177037120e317.camel@gmx.de>
Subject: Re: [RFC v2 00/34] SLUB: reduce irq disabled scope and make it RT
 compatible
From:   Mike Galbraith <efault@gmx.de>
To:     Vlastimil Babka <vbabka@suse.cz>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        Christoph Lameter <cl@linux.com>,
        David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@kernel.org>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Mel Gorman <mgorman@techsingularity.net>,
        Jesper Dangaard Brouer <brouer@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Jann Horn <jannh@google.com>
Date:   Sun, 18 Jul 2021 10:29:29 +0200
In-Reply-To: <ef4903e2-c2ce-9a64-68b0-c7ee483eb582@suse.cz>
References: <20210609113903.1421-1-vbabka@suse.cz>
         <20210702182944.lqa7o2a25to6czju@linutronix.de>
         <891dc24e38106f8542f4c72831d52dc1a1863ae8.camel@gmx.de>
         <ef4903e2-c2ce-9a64-68b0-c7ee483eb582@suse.cz>
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On Sun, 2021-07-18 at 09:41 +0200, Vlastimil Babka wrote:
> On 7/3/21 9:24 AM, Mike Galbraith wrote:
> > On Fri, 2021-07-02 at 20:29 +0200, Sebastian Andrzej Siewior wrote:
> > > I replaced my slub changes with slub-local-lock-v2r3.
> > > I haven't seen any complains from lockdep or so which is good.
> > > Then I
> > > did this with RT enabled (and no debug):
> >
> > Below is some raw hackbench data from my little i4790 desktop
> > box.  It
> > says we'll definitely still want list_lock to be raw.
>
> Hi Mike, thanks a lot for the testing, sorry for late reply.
>
> Did you try, instead of raw list_lock, not applying the last, local
> lock patch, as I suggested in reply to bigeasy?

No, but I suppose I can give that a go.

	-Mike