From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Cc: Scott Wood <scottwood@freescale.com>,
"linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>,
Rex Feany <RFeany@mrv.com>
Subject: Re: I think I have 8xx working...
Date: Thu, 15 Oct 2009 17:21:15 +1100 [thread overview]
Message-ID: <1255587675.2347.92.camel@pasglop> (raw)
In-Reply-To: <OFA38A7495.FD13F032-ONC1257650.001E7457-C1257650.001F51B8@transmode.se>
On Thu, 2009-10-15 at 07:42 +0200, Joakim Tjernlund wrote:
> I didn't say that, did I? More like:
> if I don't do tlbil_va at all I get a lot of extra/duplicate TLB
> errors
> for the same address. Adding the patch makes these go away.
> I guess one could do tlbil_va unconditionally but I didn't
> see any improvements from doing that, but this was all on 2.4
Ok so I misparsed you. I was advocating going unconditional here
and though you said it would increase the miss rate.
Cheers,
Ben
next prev parent reply other threads:[~2009-10-15 6:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-15 0:41 I think I have 8xx working Rex Feany
2009-10-15 1:00 ` Benjamin Herrenschmidt
2009-10-15 1:06 ` Benjamin Herrenschmidt
2009-10-15 1:08 ` Rex Feany
2009-10-15 1:12 ` Benjamin Herrenschmidt
2009-10-15 5:42 ` Joakim Tjernlund
2009-10-15 6:21 ` Benjamin Herrenschmidt [this message]
2009-10-15 5:32 ` Joakim Tjernlund
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