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From: bfields@fieldses.org (J. Bruce Fields)
To: linux-nfs@vger.kernel.org
Subject: unsharing tcp connections from different NFS mounts
Date: Tue, 6 Oct 2020 11:13:35 -0400	[thread overview]
Message-ID: <20201006151335.GB28306@fieldses.org> (raw)

NFSv4.1+ differs from earlier versions in that it always performs
trunking discovery that results in mounts to the same server sharing a
TCP connection.

It turns out this results in performance regressions for some users;
apparently the workload on one mount interferes with performance of
another mount, and they were previously able to work around the problem
by using different server IP addresses for the different mounts.

Am I overlooking some hack that would reenable the previous behavior?
Or would people be averse to an "-o noshareconn" option?

--b.

             reply	other threads:[~2020-10-06 15:13 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-06 15:13 J. Bruce Fields [this message]
2020-10-06 15:20 ` unsharing tcp connections from different NFS mounts Chuck Lever
2020-10-06 15:22   ` Bruce Fields
2020-10-06 17:07     ` Tom Talpey
2020-10-06 19:30       ` Bruce Fields
     [not found]         ` <CAGrwUG5_KeRVR8chcA8=3FSeii2+4c8FbuE=CSGAtYVYqV4kLg@mail.gmail.com>
2020-10-07 14:08           ` Tom Talpey
2020-10-06 19:36 ` Benjamin Coddington
2020-10-06 21:46   ` Olga Kornievskaia
2020-10-07  0:18     ` J. Bruce Fields
2020-10-07 11:27       ` Benjamin Coddington
2020-10-07 12:55         ` Benjamin Coddington
2020-10-07 13:45           ` Chuck Lever
2020-10-07 14:05             ` Bruce Fields
2020-10-07 14:15               ` Chuck Lever
2020-10-07 16:05                 ` Bruce Fields
2020-10-07 16:44                   ` Trond Myklebust
2020-10-07 17:15                     ` Bruce Fields
2020-10-07 17:29                       ` Trond Myklebust
2020-10-07 18:05                         ` bfields
2020-10-07 19:11                           ` Trond Myklebust
2020-10-07 20:29                             ` bfields
2020-10-07 18:04                     ` Benjamin Coddington
2020-10-07 18:19                       ` Trond Myklebust
2020-10-07 16:50                   ` Trond Myklebust
2021-01-19 22:22                     ` bfields
2021-01-19 23:09                       ` Trond Myklebust
2021-01-20 15:07                         ` bfields
2021-05-03 20:09                           ` bfields
2021-05-04  2:08                             ` NeilBrown
2021-05-04 13:27                               ` Tom Talpey
2021-05-04 14:27                               ` Trond Myklebust
2021-05-04 16:51                                 ` bfields
2021-05-04 21:32                                   ` Daire Byrne
2021-05-04 21:48                                     ` Trond Myklebust
2021-05-05 12:53                                       ` Daire Byrne
2021-01-20 15:58                       ` Chuck Lever
2020-10-07 13:56 ` Patrick Goetz
2020-10-07 16:28   ` Igor Ostrovsky
2020-10-07 16:30   ` Benjamin Coddington

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