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From: Marc Lehmann <schmorp@schmorp.de>
To: Roman Mamedov <rm@romanrm.net>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: cpu bound I/O behaviour in linux 5.4 (possibly others)
Date: Fri, 14 Feb 2020 13:45:59 +0100	[thread overview]
Message-ID: <20200214124554.GB7686@schmorp.de> (raw)
In-Reply-To: <20200214173654.394c1c7d@natsu>

On Fri, Feb 14, 2020 at 05:36:54PM +0500, Roman Mamedov <rm@romanrm.net> wrote:
> 
> You don't seem to mention which version you upgraded from. If a full bisect is
> impractical, this is the (very distant) next best thing you can do. Was it from
> 5.14.14, or from 3.4? :)

It was 5.2.21, and before that, 4.19. I might be able to do this, but it's
not something that I can quickly do to test this out.

> Also would be nice if you can double-check that returning to that previous
> version right now makes the issue go away, and it's not a coincidence of
> something else changed on the FS or OS (such as other package upgrades beside
> the kernel).

Would have done so, if I could easily do that. In the meantime, it's a
definite possibility that this is not actually something new, but only
something that recently manifested due to different I/O patterns.

-- 
                The choice of a       Deliantra, the free code+content MORPG
      -----==-     _GNU_              http://www.deliantra.net
      ----==-- _       generation
      ---==---(_)__  __ ____  __      Marc Lehmann
      --==---/ / _ \/ // /\ \/ /      schmorp@schmorp.de
      -=====/_/_//_/\_,_/ /_/\_\

      reply	other threads:[~2020-02-14 13:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-14 11:30 cpu bound I/O behaviour in linux 5.4 (possibly others) Marc Lehmann
2020-02-14 11:57 ` Nikolay Borisov
2020-02-14 12:20   ` Filipe Manana
2020-02-14 20:07     ` Marc Lehmann
2020-02-14 12:40   ` Marc Lehmann
2020-02-14 12:36 ` Roman Mamedov
2020-02-14 12:45   ` Marc Lehmann [this message]

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