From: Matthew Wilcox <willy@infradead.org>
To: David Rientjes <rientjes@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Suren Baghdasaryan <surenb@google.com>,
Christoph Lameter <cl@linux.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Tejun Heo <tj@kernel.org>, Johannes Weiner <hannes@cmpxchg.org>,
Davidlohr Bueso <dave@stgolabs.net>,
Namhyung Kim <namhyung@google.com>,
linux-mm@kvack.org
Subject: Re: MM global locks as core counts quadruple
Date: Fri, 21 Jun 2024 03:01:42 +0100 [thread overview]
Message-ID: <ZnTfBpSlXs3_e4X_@casper.infradead.org> (raw)
In-Reply-To: <07e7d078-0c9d-6a1f-1ab5-295f86974b72@google.com>
On Thu, Jun 20, 2024 at 05:35:45PM -0700, David Rientjes wrote:
> - slab_mutex
This is weird. You must have very strange workloads running ;-)
It protects the list of slabs. So it's taken for
- Slab creation / destruction
- CPU online/offline
- Memory hotplug
- Reading /proc/slabinfo
All of these should be rare events, but don't seem to be for you?
next prev parent reply other threads:[~2024-06-21 2:01 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-21 0:35 David Rientjes
2024-06-21 2:01 ` Matthew Wilcox [this message]
2024-06-21 2:46 ` Yafang Shao
2024-06-21 2:54 ` Matthew Wilcox
2024-06-26 19:38 ` Karim Manaouil
2024-06-27 5:36 ` Christoph Lameter (Ampere)
2024-06-21 19:10 ` Tejun Heo
2024-06-21 21:37 ` Namhyung Kim
2024-06-23 17:59 ` Tejun Heo
2024-06-24 21:44 ` David Rientjes
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