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From: Spencer Baugh <sbaugh@catern.com>
To: io-uring@vger.kernel.org
Subject: FlexSC influence on io_uring
Date: Mon, 31 Jan 2022 18:55:20 +0000 (UTC)	[thread overview]
Message-ID: <87o83r7n1k.fsf@catern.com> (raw)


Hi,

To what extent, if any, was the FlexSC paper an influence on io_uring?

FlexSC is described in a paper from 2010:
https://www.usenix.org/legacy/events/osdi10/tech/full_papers/Soares.pdf

FlexSC is a system for asynchronous system calls aimed at achieving
high-performance by avoiding the cost of system calls, in particular the
locality costs of executing kernel code and user code on the same core.

Implementation-wise, it seems broadly similar to io_uring, in that
system calls are submitted by writing to some location in memory, which
is later picked up by a syscall-execution thread (ala
IORING_SETUP_SQPOLL) which executes it and writes back the result.

I'm just curious if there was any influence from FlexSC on io_uring.

Thanks,
Spencer Baugh

             reply	other threads:[~2022-01-31 19:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-31 18:55 Spencer Baugh [this message]
2022-01-31 19:22 ` FlexSC influence on io_uring Jens Axboe

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