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From: Shawn Landden <slandden@gmail.com>
To: Shawn Landden <slandden@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, linux-api@vger.kernel.org,
	Michal Hocko <mhocko@kernel.org>,
	willy@infradead.org
Subject: Re: [RFC v4] It is common for services to be stateless around their main event loop. If a process sets PR_SET_IDLE to PR_IDLE_MODE_KILLME then it signals to the kernel that epoll_wait() and friends may not complete, and the kernel may send SIGKILL if resources get tight.
Date: Mon, 20 Nov 2017 21:26:45 -0800	[thread overview]
Message-ID: <CA+49okr0PC5sOuLQfuBt3J6KtWANa4eYoDpqOvp7rbQ9JDWQ5Q@mail.gmail.com> (raw)
In-Reply-To: <20171121051639.1228-1-slandden@gmail.com>

On Mon, Nov 20, 2017 at 9:16 PM, Shawn Landden <slandden@gmail.com> wrote:
> See my systemd patch: https://github.com/shawnl/systemd/tree/prctl
>
> Android uses this memory model for all programs, and having it in the
> kernel will enable integration with the page cache (not in this
> series).
What about having a dedicated way to kill these type of processes,
instead of overloading the OOM killer? This was suggested by
Colin Walters <walters@verbum.org>

WARNING: multiple messages have this Message-ID (diff)
From: Shawn Landden <slandden@gmail.com>
To: Shawn Landden <slandden@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, linux-api@vger.kernel.org,
	Michal Hocko <mhocko@kernel.org>,
	willy@infradead.org
Subject: Re: [RFC v4] It is common for services to be stateless around their main event loop. If a process sets PR_SET_IDLE to PR_IDLE_MODE_KILLME then it signals to the kernel that epoll_wait() and friends may not complete, and the kernel may send SIGKILL if resources get tight.
Date: Mon, 20 Nov 2017 21:26:45 -0800	[thread overview]
Message-ID: <CA+49okr0PC5sOuLQfuBt3J6KtWANa4eYoDpqOvp7rbQ9JDWQ5Q@mail.gmail.com> (raw)
In-Reply-To: <20171121051639.1228-1-slandden@gmail.com>

On Mon, Nov 20, 2017 at 9:16 PM, Shawn Landden <slandden@gmail.com> wrote:
> See my systemd patch: https://github.com/shawnl/systemd/tree/prctl
>
> Android uses this memory model for all programs, and having it in the
> kernel will enable integration with the page cache (not in this
> series).
What about having a dedicated way to kill these type of processes,
instead of overloading the OOM killer? This was suggested by
Colin Walters <walters@verbum.org>

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  reply	other threads:[~2017-11-21  5:26 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-01  5:32 [RFC] EPOLL_KILLME: New flag to epoll_wait() that subscribes process to death row (new syscall) Shawn Landden
2017-11-01  5:32 ` Shawn Landden
2017-11-01  5:32 ` Shawn Landden
2017-11-01 14:04 ` Matthew Wilcox
2017-11-01 14:04   ` Matthew Wilcox
2017-11-01 15:16 ` Colin Walters
2017-11-01 15:16   ` Colin Walters
2017-11-01 15:22   ` Colin Walters
2017-11-01 15:22     ` Colin Walters
2017-11-03  9:22     ` peter enderborg
2017-11-03  9:22       ` peter enderborg
2017-11-03  9:22       ` peter enderborg
2017-11-01 19:02   ` Shawn Landden
2017-11-01 19:37     ` Colin Walters
2017-11-01 19:37       ` Colin Walters
2017-11-01 19:43       ` Shawn Landden
2017-11-01 20:54       ` Shawn Landden
2017-11-02 15:24       ` Shawn Paul Landden
2017-11-02 15:24         ` Shawn Paul Landden
2017-11-01 19:05   ` Shawn Landden
2017-11-01 22:10 ` Tetsuo Handa
2017-11-01 22:10   ` Tetsuo Handa
2017-11-02  7:36   ` Shawn Landden
2017-11-02 15:45 ` Michal Hocko
2017-11-02 15:45   ` Michal Hocko
2017-11-03  6:35 ` [RFC v2] prctl: prctl(PR_SET_IDLE, PR_IDLE_MODE_KILLME), for stateless idle loops Shawn Landden
2017-11-03  6:35   ` Shawn Landden
2017-11-03  6:35   ` Shawn Landden
2017-11-03  9:09   ` Michal Hocko
2017-11-03  9:09     ` Michal Hocko
2017-11-18  4:45     ` Shawn Landden
2017-11-19  4:19       ` Matthew Wilcox
2017-11-19  4:19         ` Matthew Wilcox
2017-11-19  4:19         ` Matthew Wilcox
2017-11-20  8:35       ` Michal Hocko
2017-11-20  8:35         ` Michal Hocko
2017-11-21  4:48         ` Shawn Landden
2017-11-21  4:48           ` Shawn Landden
2017-11-21  7:05           ` Michal Hocko
2017-11-21  7:05             ` Michal Hocko
2017-11-18 20:33     ` Shawn Landden
2017-11-18 20:33       ` Shawn Landden
2017-11-15 21:11   ` Pavel Machek
2017-11-21  4:49   ` [RFC v3] It is common for services to be stateless around their main event loop. If a process sets PR_SET_IDLE to PR_IDLE_MODE_KILLME then it signals to the kernel that epoll_wait() and friends may not complete, and the kernel may send SIGKILL if resources get tight Shawn Landden
2017-11-21  4:49     ` Shawn Landden
2017-11-21  4:49     ` Shawn Landden
2017-11-21  4:56     ` Shawn Landden
2017-11-21  4:56       ` Shawn Landden
2017-11-21  5:16     ` [RFC v4] " Shawn Landden
2017-11-21  5:16       ` Shawn Landden
2017-11-21  5:16       ` Shawn Landden
2017-11-21  5:26       ` Shawn Landden [this message]
2017-11-21  5:26         ` Shawn Landden
2017-11-21  9:14       ` Thomas Gleixner
2017-11-21  9:14         ` Thomas Gleixner
2017-11-22 10:29   ` [RFC v2] prctl: prctl(PR_SET_IDLE, PR_IDLE_MODE_KILLME), for stateless idle loops peter enderborg
2017-11-22 10:29     ` peter enderborg
2017-11-22 10:29     ` peter enderborg

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