From: Nix <nix@esperi.org.uk>
To: John Drescher <drescherjm@gmail.com>
Cc: Damien Wyart <damien.wyart@free.fr>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.35.*: horrible (exponential? >linear) slowdown to unusability (ACPI idle?)
Date: Wed, 08 Sep 2010 23:25:22 +0100 [thread overview]
Message-ID: <87eid3zxd9.fsf@spindle.srvr.nix> (raw)
In-Reply-To: <AANLkTi=ioyeBvN_yiHER7imi9tjGKH3E=jQCbO0NeO-z@mail.gmail.com> (John Drescher's message of "Wed, 8 Sep 2010 17:35:48 -0400")
On 8 Sep 2010, John Drescher spake thusly:
> I believe I have the same problem reported in your first post. Or at
> least a lot of the symptoms.
>
> http://forums.gentoo.org/viewtopic-t-842775-postdays-0-postorder-asc-start-0.html
Yeah, that looks mostly the same, though when I see it with
CONFIG_NO_HZ, I get an increasing slowdown to unusability, not instant
sloth as you do. (The WD GreenPower thing is a complete red herring, of
course: if that was the cause of the sloth, it would be slow in other
kernels too. I see this both on machines with -- non-buggy --
GreenPowers behind an Areca RAID array, and on machines with totally
different brands of drives. ToI is likewise a complete red herring.)
next prev parent reply other threads:[~2010-09-08 22:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-05 0:51 2.6.35.*: horrible (exponential? >linear) slowdown to unusability (ACPI idle?) Nix
2010-09-06 5:32 ` Damien Wyart
2010-09-06 20:27 ` Nix
2010-09-07 5:36 ` Damien Wyart
2010-09-08 21:24 ` Nix
2010-09-08 21:35 ` John Drescher
2010-09-08 22:25 ` Nix [this message]
2010-09-09 22:34 ` [BISECTED] 2.6.35.*: horrible (exponential? >linear) slowdown to unusability (HPET) Nix
2010-09-09 23:44 ` John Drescher
2010-09-09 23:57 ` Nix
2010-09-10 0:08 ` John Drescher
2010-09-10 0:14 ` John Drescher
2010-09-10 0:59 ` Artur Skawina
2010-09-10 5:36 ` Damien Wyart
2010-09-10 7:42 ` Nix
2010-09-10 7:47 ` Damien Wyart
2010-09-10 8:37 ` Thomas Gleixner
2010-09-10 9:41 ` Jiri Slaby
2010-09-10 13:22 ` Artur Skawina
2010-09-10 20:13 ` Nix
2010-09-10 20:12 ` Nix
2010-09-14 10:09 ` Thomas Gleixner
2010-09-14 20:17 ` Nix
2010-09-14 22:18 ` Thomas Gleixner
2010-09-14 22:23 ` Artur Skawina
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