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From: "Liam R. Howlett" <Liam.Howlett@oracle.com>
To: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
	Christoph Lameter <cl@gentwo.org>,
	David Rientjes <rientjes@google.com>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	Harry Yoo <harry.yoo@oracle.com>,
	Uladzislau Rezki <urezki@gmail.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	rcu@vger.kernel.org, maple-tree@lists.infradead.org
Subject: Re: [PATCH v5 12/14] maple_tree: Sheaf conversion
Date: Tue, 26 Aug 2025 10:22:32 -0400	[thread overview]
Message-ID: <nhw4odptloo5dzmawss4q3mg7b5mtcfcs2z4flnqpduws7tlfj@hy75m647kp5z> (raw)
In-Reply-To: <CAJuCfpFKjKAAyXgW_SFBXEp9N55txYdayw2h+=cSLO7wLvO2Pw@mail.gmail.com>

* Suren Baghdasaryan <surenb@google.com> [250822 16:18]:
> On Wed, Jul 23, 2025 at 6:35 AM Vlastimil Babka <vbabka@suse.cz> wrote:
> >
> > From: "Liam R. Howlett" <Liam.Howlett@oracle.com>
> >
> > Use sheaves instead of bulk allocations.  This should speed up the
> > allocations and the return path of unused allocations.
> 
> Nice cleanup!
> 
> >
> > Remove push/pop of nodes from maple state.
> > Remove unnecessary testing
> > ifdef out other testing that probably will be deleted
> 
> Should we simply remove them if they are unused?

Yes, I think it's time to drop them.

> 
> > Fix testcase for testing race
> > Move some testing around in the same commit.
> 
> Would it be possible to separate test changes from kernel changes into
> another patch? Kernel part looks good to me but I don't know enough
> about these tests to vote on that.

Yes.  I'll do that.

I'll drop testing first then the feature so that testing will continue
to pass on bisection.

I will also stop moving tests around in this change.

> 
> >
> > Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
> > Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
> > ---
> >  include/linux/maple_tree.h       |   6 +-
> >  lib/maple_tree.c                 | 331 ++++----------------
> >  lib/test_maple_tree.c            |   8 +
> >  tools/testing/radix-tree/maple.c | 632 +++++++--------------------------------
> >  tools/testing/shared/linux.c     |   8 +-
> >  5 files changed, 185 insertions(+), 800 deletions(-)

...

I didn't see any changes in the code block, but please let me know if I
missed them.


Thanks,
Liam


  reply	other threads:[~2025-08-26 14:22 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-23 13:34 [PATCH v5 00/14] SLUB percpu sheaves Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 01/14] slab: add opt-in caching layer of " Vlastimil Babka
2025-08-18 10:09   ` Harry Yoo
2025-08-26  8:03     ` Vlastimil Babka
2025-08-19  4:19   ` Suren Baghdasaryan
2025-08-26  8:51     ` Vlastimil Babka
2025-09-13 14:35   ` Mateusz Guzik
2025-09-13 20:32     ` Vlastimil Babka
2025-09-14  2:22   ` Hillf Danton
2025-09-14 20:24     ` Vlastimil Babka
2025-09-15  0:11       ` Hillf Danton
2025-09-15  7:21         ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 02/14] slab: add sheaf support for batching kfree_rcu() operations Vlastimil Babka
2025-07-23 16:39   ` Uladzislau Rezki
2025-07-24 14:30     ` Vlastimil Babka
2025-07-24 17:36       ` Uladzislau Rezki
2025-07-23 13:34 ` [PATCH v5 03/14] slab: sheaf prefilling for guaranteed allocations Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 04/14] slab: determine barn status racily outside of lock Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 05/14] tools: Add testing support for changes to rcu and slab for sheaves Vlastimil Babka
2025-08-22 16:28   ` Suren Baghdasaryan
2025-08-26  9:32     ` Vlastimil Babka
2025-08-27  0:19       ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 06/14] tools: Add sheaves support to testing infrastructure Vlastimil Babka
2025-08-22 16:56   ` Suren Baghdasaryan
2025-08-26  9:59     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 07/14] maple_tree: use percpu sheaves for maple_node_cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 08/14] mm, vma: use percpu sheaves for vm_area_struct cache Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 09/14] mm, slub: skip percpu sheaves for remote object freeing Vlastimil Babka
2025-08-25  5:22   ` Harry Yoo
2025-08-26 10:11     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 10/14] mm, slab: allow NUMA restricted allocations to use percpu sheaves Vlastimil Babka
2025-08-22 19:58   ` Suren Baghdasaryan
2025-08-25  6:52   ` Harry Yoo
2025-08-26 10:49     ` Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 11/14] testing/radix-tree/maple: Increase readers and reduce delay for faster machines Vlastimil Babka
2025-07-23 13:34 ` [PATCH v5 12/14] maple_tree: Sheaf conversion Vlastimil Babka
2025-08-22 20:18   ` Suren Baghdasaryan
2025-08-26 14:22     ` Liam R. Howlett [this message]
2025-08-27  2:07       ` Suren Baghdasaryan
2025-08-28 14:27         ` Liam R. Howlett
2025-07-23 13:34 ` [PATCH v5 13/14] maple_tree: Add single node allocation support to maple state Vlastimil Babka
2025-08-22 20:25   ` Suren Baghdasaryan
2025-08-26 15:10     ` Liam R. Howlett
2025-08-27  2:03       ` Suren Baghdasaryan
2025-07-23 13:34 ` [PATCH v5 14/14] maple_tree: Convert forking to use the sheaf interface Vlastimil Babka
2025-08-22 20:29   ` Suren Baghdasaryan
2025-08-15 22:53 ` [PATCH v5 00/14] SLUB percpu sheaves Sudarsan Mahendran
2025-08-16  8:05   ` Harry Yoo
2025-08-16 17:35     ` Sudarsan Mahendran
2025-08-16 18:31       ` Vlastimil Babka
2025-08-16 18:33         ` Vlastimil Babka
2025-08-17  4:28           ` Sudarsan Mahendran
2025-09-13  0:09 ` Benchmarking " Sudarsan Mahendran
2025-09-15  7:51   ` Jan Engelhardt
2025-09-15 12:13     ` Paul E. McKenney
2025-09-15 15:22       ` Vlastimil Babka
2025-09-16 17:09         ` Suren Baghdasaryan
2025-09-17  5:19           ` Uladzislau Rezki
2025-09-17 16:14             ` Suren Baghdasaryan
2025-09-17 23:59               ` Suren Baghdasaryan
2025-09-18 11:50                 ` Uladzislau Rezki
2025-09-18 15:29                   ` Liam R. Howlett
2025-09-19 15:07                     ` Uladzislau Rezki

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