From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Michal Hocko <mhocko@suse.com>
Cc: cgroups@vger.kernel.org, linux-mm@kvack.org,
"Andrew Morton" <akpm@linux-foundation.org>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Michal Koutný" <mkoutny@suse.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Vladimir Davydov" <vdavydov.dev@gmail.com>,
"Waiman Long" <longman@redhat.com>
Subject: Re: [PATCH 3/4] mm/memcg: Add a local_lock_t for IRQ and TASK object.
Date: Tue, 1 Feb 2022 13:11:57 +0100 [thread overview]
Message-ID: <Yfkjjamj09lZn4sA@linutronix.de> (raw)
In-Reply-To: <YfkhsiWHzsyQSBfl@dhcp22.suse.cz>
On 2022-02-01 13:04:02 [+0100], Michal Hocko wrote:
>
> Thanks! This gives us some picture from the microbenchmark POV. I was
> more interested in some real life representative benchmarks. In other
> words does the optimization from Weiman make any visible difference for
> any real life workload?
my understanding is that this was micro-benchmark driven.
> Sorry, I know that this all is not really related to your work but if
> the original optimization is solely based on artificial benchmarks then
> I would rather drop it and also make your RT patchset easier.
Do you have any real-world benchmark in mind? Like something that is
already used for testing/ benchmarking and would fit here?
Sebastian
next prev parent reply other threads:[~2022-02-01 12:12 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-25 16:43 [PATCH 0/4] mm/memcg: Address PREEMPT_RT problems instead of disabling it Sebastian Andrzej Siewior
2022-01-25 16:43 ` [PATCH 1/4] mm/memcg: Disable threshold event handlers on PREEMPT_RT Sebastian Andrzej Siewior
2022-01-26 14:40 ` Michal Hocko
2022-01-26 14:45 ` Sebastian Andrzej Siewior
2022-01-26 15:04 ` Michal Koutný
2022-01-27 13:36 ` Sebastian Andrzej Siewior
2022-01-26 15:21 ` Michal Hocko
2022-01-25 16:43 ` [PATCH 2/4] mm/memcg: Protect per-CPU counter by disabling preemption on PREEMPT_RT where needed Sebastian Andrzej Siewior
2022-01-26 10:06 ` Vlastimil Babka
2022-01-26 11:24 ` Sebastian Andrzej Siewior
2022-01-26 14:56 ` Michal Hocko
2022-01-25 16:43 ` [PATCH 3/4] mm/memcg: Add a local_lock_t for IRQ and TASK object Sebastian Andrzej Siewior
2022-01-26 15:20 ` Michal Hocko
2022-01-27 11:53 ` Sebastian Andrzej Siewior
2022-02-01 12:04 ` Michal Hocko
2022-02-01 12:11 ` Sebastian Andrzej Siewior [this message]
2022-02-01 15:29 ` Michal Hocko
2022-02-03 9:54 ` Sebastian Andrzej Siewior
2022-02-03 10:09 ` Michal Hocko
2022-02-03 11:09 ` Sebastian Andrzej Siewior
2022-02-08 17:58 ` Shakeel Butt
2022-02-09 9:17 ` Michal Hocko
2022-01-26 16:57 ` Vlastimil Babka
2022-01-31 15:06 ` Sebastian Andrzej Siewior
2022-02-03 16:01 ` Vlastimil Babka
2022-02-08 17:17 ` Sebastian Andrzej Siewior
2022-02-08 17:28 ` Michal Hocko
2022-02-09 1:48 ` [mm/memcg] 86895e1e85: WARNING:possible_circular_locking_dependency_detected kernel test robot
2022-01-25 16:43 ` [PATCH 4/4] mm/memcg: Allow the task_obj optimization only on non-PREEMPTIBLE kernels Sebastian Andrzej Siewior
2022-01-25 23:21 ` [PATCH 0/4] mm/memcg: Address PREEMPT_RT problems instead of disabling it Andrew Morton
2022-01-26 7:30 ` Sebastian Andrzej Siewior
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