linux-kernel - Re: [RFC][PATCH 0/8] epoll: remove epmutex from ep_free() and eventpoll_release

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Message-ID: <20171031130138.4dqv3qsxa76tv4nn@linux-n805>
Date:   Tue, 31 Oct 2017 06:01:38 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Hou Tao <houtao1@...wei.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        viro@...iv.linux.org.uk, jbaron@...mai.com, oleg@...hat.com,
        koct9i@...il.com
Subject: Re: [RFC][PATCH 0/8] epoll: remove epmutex from ep_free() and
 eventpoll_release_file() for non-nested case

On Sat, 28 Oct 2017, Hou Tao wrote:

>The patch set has passed the epoll related test cases in LTP, and we are
>planing to run some torture or performance test cases for nested-epoll
>cases.

fyi this series survived running a 2 level nested epoll_wait() benchmark
on a 40-core box, with 80 concurrent threads:

http://linux-scalability.org/epoll/epoll-test.c

Thanks,
Davidlohr