From: Oscar Salvador <osalvador@suse.de>
To: Marco Elver <elver@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Michal Hocko <mhocko@suse.com>, Vlastimil Babka <vbabka@suse.cz>,
Andrey Konovalov <andreyknvl@gmail.com>,
Alexander Potapenko <glider@google.com>
Subject: Re: [PATCH v7 3/4] mm,page_owner: Display all stacks and their count
Date: Sun, 11 Feb 2024 21:39:24 +0100 [thread overview]
Message-ID: <ZckwfAk3rAWU0Jg-@localhost.localdomain> (raw)
In-Reply-To: <CANpmjNOpfdgMT1jNPJev_e6tecZjGn4n8Sk6aoaLVDsqfJgmKg@mail.gmail.com>
On Sat, Feb 10, 2024 at 08:52:25AM +0100, Marco Elver wrote:
> The extra bits are used by KMSAN, and might conflict if enabled at the
> same time. I think the safest option is to keep your own list. I think
> that will also be more performant if there are other stackdepot users
> because you do not have to traverse any of the other entries.
Ok, I thought we had spare bits for other users.
But thinking about it some more, yes, it makes sense for page_owner to
maintain its own list, so traversing it is faster and we do not have
to place code to traverse the buckets in stackdepot.
--
Oscar Salvador
SUSE Labs
next prev parent reply other threads:[~2024-02-11 20:38 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-08 23:45 [PATCH v7 0/4] page_owner: print stacks and their outstanding allocations Oscar Salvador
2024-02-08 23:45 ` [PATCH v7 1/4] lib/stackdepot: Move stack_record struct definition into the header Oscar Salvador
2024-02-09 7:45 ` Marco Elver
2024-02-09 21:33 ` Oscar Salvador
2024-02-09 17:39 ` kernel test robot
2024-02-10 9:59 ` kernel test robot
2024-02-08 23:45 ` [PATCH v7 2/4] mm,page_owner: Implement the tracking of the stacks count Oscar Salvador
2024-02-09 7:37 ` Marco Elver
2024-02-09 7:45 ` Marco Elver
2024-02-09 21:39 ` Oscar Salvador
2024-02-09 21:42 ` Marco Elver
2024-02-09 21:44 ` Marco Elver
2024-02-11 20:42 ` Oscar Salvador
2024-02-08 23:45 ` [PATCH v7 3/4] mm,page_owner: Display all stacks and their count Oscar Salvador
2024-02-09 8:00 ` Marco Elver
2024-02-09 21:52 ` Oscar Salvador
2024-02-09 23:14 ` Oscar Salvador
2024-02-10 7:52 ` Marco Elver
2024-02-11 20:39 ` Oscar Salvador [this message]
2024-02-12 10:47 ` Vlastimil Babka
2024-02-09 23:14 ` kernel test robot
2024-02-08 23:45 ` [PATCH v7 4/4] mm,page_owner: Filter out stacks by a threshold Oscar Salvador
2024-02-09 0:28 ` [PATCH v7 0/4] page_owner: print stacks and their outstanding allocations Andrew Morton
2024-02-09 21:31 ` Oscar Salvador
2024-02-09 8:03 ` Marco Elver
2024-02-09 21:32 ` Oscar Salvador
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