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From: Nam Cao <namcao@linutronix.de>
To: Mateusz Guzik <mjguzik@gmail.com>, Khazhy Kumykov <khazhy@chromium.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
	Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
	Shuah Khan <shuah@kernel.org>,
	Davidlohr Bueso <dave@stgolabs.net>,
	Soheil Hassas Yeganeh <soheil@google.com>,
	Willem de Bruijn <willemb@google.com>,
	Eric Dumazet <edumazet@google.com>, Jens Axboe <axboe@kernel.dk>,
	linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kselftest@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH 2/2] eventpoll: Fix epoll_wait() report false negative
Date: Mon, 22 Sep 2025 08:26:30 +0200	[thread overview]
Message-ID: <87qzvz9f55.fsf@yellow.woof> (raw)
In-Reply-To: <CAGudoHF8pKE3ODqY-WnbV=ZpjC9hH+U+COq_KE=aH7mEW8fsKQ@mail.gmail.com>

Mateusz Guzik <mjguzik@gmail.com> writes:
> a sequence counter around shenanigans will sort it out, but I don't
> know if it is worth it and don't really want to investigate myself.

The original commit did mention "1% CPU/RPC reduction in RPC benchmarks".
I'm not sure what "RPC" stands for and which benchmark it is. But if it
is really important, we must have heard by now.

Nam

  reply	other threads:[~2025-09-22  6:26 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-18  7:52 [PATCH 0/2] eventpoll: Fix epoll_wait() report false negative Nam Cao
2025-07-18  7:52 ` [PATCH 1/2] selftests/eventpoll: Add test for multiple waiters Nam Cao
2025-07-18  7:52 ` [PATCH 2/2] eventpoll: Fix epoll_wait() report false negative Nam Cao
2025-07-18  8:38   ` Soheil Hassas Yeganeh
2025-07-18  8:59     ` Nam Cao
2026-04-29  6:54       ` Christian Brauner
2026-04-29  7:27         ` Nam Cao
2026-04-29 15:34           ` Mateusz Guzik
2026-05-03 13:24             ` Nam Cao
2026-05-04 12:00         ` David Laight
2025-09-17 12:49   ` Mateusz Guzik
2025-09-17 13:41     ` Nam Cao
2025-09-17 16:05       ` Mateusz Guzik
2025-09-17 16:08         ` Mateusz Guzik
2025-09-17 18:03           ` Khazhy Kumykov
2025-09-17 22:28             ` Khazhy Kumykov
2025-09-17 22:38               ` Mateusz Guzik
2025-09-22  6:26                 ` Nam Cao [this message]
2025-09-20 14:42         ` David Laight
2025-09-20 14:45           ` Mateusz Guzik
2025-09-17  7:27 ` [PATCH 0/2] " Nam Cao

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