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From: "Drew DeVault" <sir@cmpwn.com>
To: <io-uring@vger.kernel.org>
Subject: Is IORING_REGISTER_BUFFERS useful given the current default RLIMIT_MLOCK?
Date: Mon, 25 Oct 2021 15:58:33 +0200	[thread overview]
Message-ID: <CF8JHZUUYC1O.3DU8635RE8FSX@taiga> (raw)

The current default for RLIMIT_MLOCK is set to 64 KiB. This is not much!
This limit was set to this value in 2008 at the request of GnuPG.

I understand that the main audience of io_uring is high-performance
servers and such, where configuring the rlimits appropriately is not a
particularly burdensome ask. However, this dramatically limits the
utility of IORING_REGISTER_BUFFERS in the end-user software use-case,
almost such that it's entirely pointless *without* raising the mlock
rlimit.

I wonder if we can/should make a case for raising the default rlimit to
something more useful for $CURRENTYEAR?

             reply	other threads:[~2021-10-25 13:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-25 13:58 Drew DeVault [this message]
2021-10-25 15:42 ` Is IORING_REGISTER_BUFFERS useful given the current default RLIMIT_MLOCK? Vito Caputo
2021-10-26  7:12   ` Drew DeVault

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