From: Ralf Baechle <ralf@linux-mips.org>
To: Joshua Kinard <kumba@gentoo.org>
Cc: linux-mips@linux-mips.org
Subject: Re: THP broken on OCTEON?
Date: Mon, 23 May 2016 22:01:47 +0200 [thread overview]
Message-ID: <20160523200147.GC24125@linux-mips.org> (raw)
In-Reply-To: <57435CB4.5080609@gentoo.org>
On Mon, May 23, 2016 at 03:40:36PM -0400, Joshua Kinard wrote:
> > * THP still has issues on R1x000 CPUs, so user beware. YMMV.
As of now I think you can remove the "on R1x000 CPUs, " part, it seems.
> Might try some of those combinations and see if things improve on the Octeon?
> IP27 was equally affected by this, minus the bits about RAM and Impact Gfx.
> turning off THP, IP30 can run 64KB PAGE_SIZE without issue (compiles of
> packages is actually sped up quite significantly under >4KB PAGE_SIZE).
>
> IP27 has a bug in it somewhere that causes an immediate Oops on 64KB PAGE_SIZE
> that I haven't traced down yet (I have the Oops saved somewhere if needed). So
> I use 16KB on that system.
> An O2 w/ an RM7000 has virtually no issues at all with 64KB or 16KB PAGE_SIZE
> and THP, though it's been several months since I last booted my O2.
Rather different CPU and notably one that doesn't have any fancy
anti-alias protection afair.
Ralf
next prev parent reply other threads:[~2016-05-23 20:01 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-23 15:13 THP broken on OCTEON? Aaro Koskinen
2016-05-23 15:20 ` Ralf Baechle
2016-05-23 16:21 ` David Daney
2016-05-23 18:52 ` Aaro Koskinen
2016-05-23 19:03 ` David Daney
2016-05-23 19:03 ` David Daney
2016-05-23 19:08 ` Joshua Kinard
2016-05-23 20:02 ` Alastair Bridgewater
2016-05-23 18:57 ` Joshua Kinard
2016-05-23 19:22 ` Ralf Baechle
2016-05-23 19:40 ` Joshua Kinard
2016-05-23 20:01 ` Ralf Baechle [this message]
2016-05-24 21:21 ` Aaro Koskinen
2016-05-24 22:39 ` David Daney
2016-05-25 13:41 ` Aaro Koskinen
2016-05-26 9:33 ` Joshua Kinard
2016-05-26 13:36 ` Aaro Koskinen
2016-05-26 17:59 ` David Daney
2016-05-26 19:23 ` Aaro Koskinen
2016-05-26 22:13 ` David Daney
2016-05-27 17:14 ` Aaro Koskinen
2016-05-27 21:03 ` Joshua Kinard
2016-05-27 22:05 ` Aaro Koskinen
2016-05-27 22:22 ` Joshua Kinard
2016-06-22 22:05 ` David Daney
2016-06-23 12:08 ` Aaro Koskinen
2016-06-23 12:08 ` Aaro Koskinen
2016-06-24 11:38 ` Joshua Kinard
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