From: Richard Henderson <rth@twiddle.net>
To: Artyom Tarasenko <atar4qemu@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
Alexander Graf <agraf@suse.de>
Subject: Re: [Qemu-devel] [PATCH v3 0/3] Support more than 8 MMU modes, speedup PPC by 10%
Date: Mon, 15 Jun 2015 09:29:51 -0700 [thread overview]
Message-ID: <557EFD7F.8070804@twiddle.net> (raw)
In-Reply-To: <CACXAS8DEg9bAzD4h15f6MJeo=i8ZENdpBU_Sy_qmuCXR=q9qVg@mail.gmail.com>
On 06/15/2015 09:00 AM, Artyom Tarasenko wrote:
> On Mon, Jun 15, 2015 at 5:50 PM, Richard Henderson <rth@twiddle.net> wrote:
>> On 06/11/2015 01:59 AM, Artyom Tarasenko wrote:
>>>
>>> This is a very promising approach. Would it also work on a large
>>> numbers of MMU modes?
>>> Particulary I wonder if it would work for SPARC, where 32-bit
>>> processors have up to 65536 MMU contexts.
>>
>>
>> No, it wouldn't.
>>
>
> What would be a better approach there? Cache recently used contexts only?
On alpha and arm, we simply ignore Address Space Numbers, which is what I
assume this is for Sparc. I've tried several times to find an efficient way to
do this for Alpha with no success.
r~
prev parent reply other threads:[~2015-06-15 16:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-05 7:18 [Qemu-devel] [PATCH v3 0/3] Support more than 8 MMU modes, speedup PPC by 10% Paolo Bonzini
2015-05-05 7:18 ` [Qemu-devel] [PATCH v2 1/3] tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS Paolo Bonzini
2015-05-05 7:18 ` [Qemu-devel] [PATCH v2 2/3] softmmu: support up to 12 MMU modes Paolo Bonzini
2015-05-18 17:00 ` Alexander Graf
2015-05-05 7:18 ` [Qemu-devel] [PATCH v2 3/3] target-ppc: use separate indices for various translation modes Paolo Bonzini
2015-06-02 16:06 ` Alexander Graf
2015-05-05 15:49 ` [Qemu-devel] [PATCH v3 0/3] Support more than 8 MMU modes, speedup PPC by 10% Richard Henderson
2015-05-08 1:15 ` Alexander Graf
2015-05-07 22:26 ` Alexander Graf
2015-06-11 8:59 ` Artyom Tarasenko
2015-06-15 15:50 ` Richard Henderson
2015-06-15 16:00 ` Artyom Tarasenko
2015-06-15 16:29 ` Richard Henderson [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=557EFD7F.8070804@twiddle.net \
--to=rth@twiddle.net \
--cc=agraf@suse.de \
--cc=atar4qemu@gmail.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.