From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
Amir Goldstein <amir73il@gmail.com>,
Hugh Dickins <hughd@google.com>
Cc: Michael Larabel <Michael@michaellarabel.com>,
Ted Ts'o <tytso@google.com>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Ext4 Developers List <linux-ext4@vger.kernel.org>,
Jan Kara <jack@suse.cz>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: Kernel Benchmarking
Date: Sat, 12 Sep 2020 13:59:48 -0700 [thread overview]
Message-ID: <1599944388.6060.25.camel@HansenPartnership.com> (raw)
In-Reply-To: <CAHk-=whjhYa3ig0U_mtpoU5Zok_2Y5zTCw8f-THkf1vHRBDNuA@mail.gmail.com>
On Sat, 2020-09-12 at 10:59 -0700, Linus Torvalds wrote:
[...]
> Any other suggestions than those (a)-(d) ones above?
What about revert and try to fix the outliers? Say by having a timer
set when a process gets put to sleep waiting on the page lock. If the
time fires it gets woken up and put at the head of the queue. I
suppose it would also be useful to know if this had happened, so if the
timer has to be reset because the process again fails to win and gets
put to sleep it should perhaps be woken after a shorter interval or
perhaps it should spin before sleeping.
I'm not advocating this as the long term solution, but it could be the
stopgap while people work on (c).
James
next prev parent reply other threads:[~2020-09-12 20:59 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAHk-=wiZnE409WkTOG6fbF_eV1LgrHBvMtyKkpTqM9zT5hpf9A@mail.gmail.com>
[not found] ` <4ced9401-de3d-b7c9-9976-2739e837fafc@MichaelLarabel.com>
[not found] ` <CAHk-=wj+Qj=wXByMrAx3T8jmw=soUetioRrbz6dQaECx+zjMtg@mail.gmail.com>
[not found] ` <CAHk-=wgOPjbJsj-LeLc-JMx9Sz9DjGF66Q+jQFJROt9X9utdBg@mail.gmail.com>
[not found] ` <CAHk-=wjjK7PTnDZNi039yBxSHtAqusFoRrZzgMNTiYkJYdNopw@mail.gmail.com>
[not found] ` <aa90f272-1186-f9e1-8fdb-eefd332fdae8@MichaelLarabel.com>
[not found] ` <CAHk-=wh_31_XBNHbdF7EUJceLpEpwRxVF+_1TONzyBUym6Pw4w@mail.gmail.com>
[not found] ` <e24ef34d-7b1d-dd99-082d-28ca285a79ff@MichaelLarabel.com>
[not found] ` <CAHk-=wgEE4GuNjcRaaAvaS97tW+239-+tjcPjTq2FGhEuM8HYg@mail.gmail.com>
[not found] ` <6e1d8740-2594-c58b-ff02-a04df453d53c@MichaelLarabel.com>
[not found] ` <CAHk-=wgJ3-cEkU-5zXFPvRCHKkCCuKxVauYWGphjePEhJJgtgQ@mail.gmail.com>
[not found] ` <d2023f4c-ef14-b877-b5bb-e4f8af332abc@MichaelLarabel.com>
[not found] ` <CAHk-=wiz=J=8mJ=zRG93nuJ9GtQAm5bSRAbWJbWZuN4Br38+EQ@mail.gmail.com>
2020-09-11 0:05 ` Kernel Benchmarking Linus Torvalds
2020-09-11 0:49 ` Michael Larabel
2020-09-11 2:20 ` Linus Torvalds
[not found] ` <0cbc959e-1b8d-8d7e-1dc6-672cf5b3899a@MichaelLarabel.com>
2020-09-11 16:19 ` Linus Torvalds
2020-09-11 22:07 ` Linus Torvalds
2020-09-11 22:37 ` Michael Larabel
2020-09-12 7:28 ` Amir Goldstein
2020-09-12 10:32 ` Michael Larabel
2020-09-12 14:37 ` Matthew Wilcox
2020-09-12 14:44 ` Michael Larabel
2020-09-15 3:32 ` Matthew Wilcox
2020-09-15 10:39 ` Jan Kara
2020-09-15 13:52 ` Matthew Wilcox
[not found] ` <658ae026-32d9-0a25-5a59-9c510d6898d5@MichaelLarabel.com>
2020-09-14 17:47 ` Linus Torvalds
2020-09-14 20:21 ` Matthieu Baerts
2020-09-14 20:53 ` Linus Torvalds
2020-09-15 0:42 ` Linus Torvalds
2020-09-15 15:34 ` Matthieu Baerts
2020-09-15 18:27 ` Linus Torvalds
2020-09-15 18:47 ` Linus Torvalds
2020-09-15 19:26 ` Matthieu Baerts
2020-09-15 19:32 ` Linus Torvalds
2020-09-15 19:56 ` Matthieu Baerts
2020-09-15 23:35 ` Linus Torvalds
2020-09-16 10:34 ` Jan Kara
2020-09-16 18:47 ` Linus Torvalds
[not found] ` <9a92bf16-02c5-ba38-33c7-f350588ac874@tessares.net>
2020-09-15 19:24 ` Linus Torvalds
2020-09-15 19:38 ` Matthieu Baerts
2020-09-15 18:31 ` Linus Torvalds
2020-09-15 14:21 ` Michael Larabel
2020-09-15 17:52 ` Linus Torvalds
2020-09-17 17:51 ` Linus Torvalds
2020-09-17 18:23 ` Matthew Wilcox
2020-09-17 18:30 ` Linus Torvalds
2020-09-17 18:50 ` Matthew Wilcox
2020-09-17 19:00 ` Linus Torvalds
2020-09-17 19:27 ` Matthew Wilcox
2020-09-17 19:47 ` Linus Torvalds
2020-09-18 0:39 ` Sedat Dilek
2020-09-18 0:40 ` Sedat Dilek
2020-09-18 20:25 ` Sedat Dilek
2020-09-20 17:06 ` Linus Torvalds
2020-09-20 17:14 ` Sedat Dilek
2020-09-20 17:40 ` Linus Torvalds
2020-09-20 18:00 ` Sedat Dilek
2020-09-20 23:23 ` Dave Chinner
2020-09-20 23:31 ` Linus Torvalds
2020-09-20 23:40 ` Linus Torvalds
2020-09-21 1:20 ` Dave Chinner
2020-09-12 15:53 ` Matthew Wilcox
2020-09-12 17:59 ` Linus Torvalds
2020-09-12 20:32 ` Rogério Brito
2020-09-14 9:33 ` Jan Kara
2020-09-12 20:58 ` Josh Triplett
2020-09-12 20:59 ` James Bottomley [this message]
2020-09-12 21:15 ` Linus Torvalds
2020-09-12 22:32 ` Matthew Wilcox
2020-09-13 0:40 ` Dave Chinner
2020-09-13 2:39 ` Linus Torvalds
2020-09-13 3:40 ` Matthew Wilcox
2020-09-13 23:45 ` Dave Chinner
2020-09-14 3:31 ` Matthew Wilcox
2020-09-15 14:28 ` Chris Mason
2020-09-15 9:27 ` Jan Kara
2020-09-13 3:18 ` Matthew Wilcox
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