From: Qian Cai <cai@lca.pw>
To: Catalin Marinas <catalin.marinas@arm.com>,
Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>,
akpm@linux-foundation.org, cl@linux.com, penberg@kernel.org,
rientjes@google.com, iamjoonsoo.kim@lge.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4] kmemleak: survive in a low-memory situation
Date: Thu, 28 Mar 2019 11:24:47 -0400 [thread overview]
Message-ID: <1553786687.26196.26.camel@lca.pw> (raw)
In-Reply-To: <20190328145917.GC10283@arrakis.emea.arm.com>
On Thu, 2019-03-28 at 14:59 +0000, Catalin Marinas wrote: 2
> +/* minimum memory pool sizes */
> +#define MIN_OBJECT_POOL (NR_CPUS * 4)
> +#define MIN_SCAN_AREA_POOL (NR_CPUS * 1)
I am thinking about making those are tunable, so people could have a big pool
depends on their workloads.
Also, I would like to see a way to refill this emergency pool. For example, once
OOM kiler freed up more memory. Maybe at the time of kmemleak_scan kthread
kicked in and then monitor and refill the pool whenever possible.
next prev parent reply other threads:[~2019-03-28 15:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-27 0:59 [PATCH v4] kmemleak: survive in a low-memory situation Qian Cai
2019-03-27 8:44 ` Michal Hocko
2019-03-27 11:34 ` Qian Cai
2019-03-27 11:44 ` Michal Hocko
2019-03-27 13:05 ` Qian Cai
2019-03-27 13:17 ` Michal Hocko
2019-03-27 17:29 ` Catalin Marinas
2019-03-27 18:02 ` Qian Cai
2019-03-28 15:05 ` Catalin Marinas
2019-03-28 15:41 ` Qian Cai
2019-03-27 18:17 ` Michal Hocko
2019-03-27 18:21 ` Matthew Wilcox
2019-03-28 14:59 ` Catalin Marinas
2019-03-28 15:24 ` Qian Cai [this message]
2019-03-29 12:02 ` Michal Hocko
2019-03-29 16:16 ` Catalin Marinas
2019-04-01 20:12 ` Michal Hocko
2019-04-05 16:43 ` Catalin Marinas
2019-03-28 6:05 ` Pekka Enberg
2019-03-28 10:30 ` Catalin Marinas
2019-03-28 11:50 ` Pekka Enberg
2019-03-28 15:28 ` Catalin Marinas
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