From: Aurelien Jarno <aurelien@aurel32.net>
To: Dennis Luehring <dl.soluz@gmx.net>
Cc: qemu-devel@nongnu.org, Karel Gardas <gardask@gmail.com>
Subject: Re: [Qemu-devel] Debian 7.8.0 SPARC64 on qemu - anything i can do to speedup the emulation?
Date: Thu, 30 Jul 2015 09:55:38 +0200 [thread overview]
Message-ID: <20150730075538.GU11361@aurel32.net> (raw)
In-Reply-To: <55B99E47.8070007@gmx.net>
On 2015-07-30 05:47, Dennis Luehring wrote:
> so your aarch64 is just less todo for qemu - not EVERY >= 16bit memory
> access needs swapping or needs check for unaligned access to emulate
> bus-erros
On recent Intel CPU, the byteswapping comes for free (MOVBE
instruction).
About the unaligned access it's actually the reverse. The fact that
aarch64 does unaligned access means they have to go through the slow
path (I have posted a patch to improve that). On sparc given that all
access are aligned means there are more chances to go through the fast
path.
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurelien@aurel32.net http://www.aurel32.net
next prev parent reply other threads:[~2015-07-30 7:55 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-28 7:52 [Qemu-devel] Debian 7.8.0 SPARC64 on qemu - anything i can do to speedup the emulation? Dennis Luehring
2015-07-28 9:54 ` Artyom Tarasenko
2015-07-29 6:20 ` Dennis Luehring
2015-07-29 8:23 ` Artyom Tarasenko
2015-07-29 15:01 ` Aurelien Jarno
2015-07-30 3:52 ` Dennis Luehring
2015-07-30 7:52 ` Aurelien Jarno
2015-07-30 8:16 ` Dennis Luehring
2015-07-30 8:42 ` Artyom Tarasenko
2015-07-30 8:55 ` Aurelien Jarno
2015-07-30 9:35 ` Artyom Tarasenko
2015-07-30 10:09 ` Aurelien Jarno
2015-07-30 18:21 ` Dennis Luehring
2015-07-30 15:50 ` Aurelien Jarno
2015-07-31 15:31 ` Artyom Tarasenko
2015-07-31 15:43 ` Aurelien Jarno
2015-08-02 13:11 ` Mark Cave-Ayland
2015-08-03 8:31 ` Artyom Tarasenko
2015-08-03 9:17 ` Aurelien Jarno
2015-08-18 9:24 ` Artyom Tarasenko
2015-08-18 17:55 ` Richard Henderson
2015-08-19 10:41 ` Artyom Tarasenko
2015-08-19 11:00 ` Aurelien Jarno
2015-08-19 14:41 ` Artyom Tarasenko
2015-08-20 5:22 ` Dennis Luehring
2015-08-20 10:40 ` Artyom Tarasenko
2015-08-20 17:19 ` Richard Henderson
2015-08-21 4:32 ` Dennis Luehring
2015-08-21 5:49 ` Richard Henderson
2015-08-21 6:05 ` Dennis Luehring
2015-08-21 15:47 ` Richard Henderson
2015-08-21 16:13 ` Aurelien Jarno
2015-08-21 16:41 ` Dennis Luehring
2015-08-22 16:45 ` Artyom Tarasenko
2015-08-22 17:47 ` Dennis Luehring
2015-08-22 18:53 ` Artyom Tarasenko
2015-08-23 12:11 ` Dennis Luehring
2015-08-23 0:41 ` Richard Henderson
2015-08-26 16:17 ` Artyom Tarasenko
2015-08-26 19:47 ` Richard Henderson
2015-08-27 5:54 ` Dennis Luehring
2015-08-27 15:04 ` Richard Henderson
2015-08-27 15:58 ` Artyom Tarasenko
2015-08-17 11:32 ` Dennis Luehring
2015-08-03 7:58 ` Dennis Luehring
2015-08-03 14:51 ` Dennis Luehring
2015-08-03 15:59 ` Karel Gardas
2015-08-03 19:51 ` Dennis Luehring
2015-08-06 9:00 ` Karel Gardas
2015-08-06 9:21 ` Dennis Luehring
2015-08-06 9:27 ` Dennis Luehring
2015-08-06 12:50 ` Karel Gardas
2015-08-06 16:35 ` Dennis Luehring
2015-08-18 4:25 ` Dennis Luehring
2015-08-18 8:19 ` Aurelien Jarno
2015-08-18 10:39 ` Dennis Luehring
2015-08-18 11:21 ` Dennis Luehring
[not found] ` <CAMO55fkcW1eOaZSz2MJgqZEP29pTuHvTLe0Kna5eHYfg7cFyPA@mail.gmail.com>
2015-08-19 4:28 ` Dennis Luehring
2015-07-29 8:07 ` Dennis Luehring
2015-07-29 15:03 ` Aurelien Jarno
2015-07-29 9:17 ` Karel Gardas
2015-07-29 10:20 ` Dennis Luehring
2015-07-29 13:45 ` Karel Gardas
2015-07-29 15:13 ` Aurelien Jarno
2015-07-29 10:55 ` Dennis Luehring
2015-07-29 12:34 ` Karel Gardas
2015-07-29 12:38 ` Karel Gardas
2015-07-29 13:55 ` Dennis Luehring
2015-07-29 14:41 ` Karel Gardas
2015-07-30 3:47 ` Dennis Luehring
2015-07-30 7:12 ` Paolo Bonzini
2015-07-30 8:31 ` Artyom Tarasenko
2015-08-02 19:12 ` Alex Bennée
2015-07-30 7:55 ` Aurelien Jarno [this message]
2015-08-17 14:19 ` Artyom Tarasenko
2015-08-17 15:40 ` Richard Henderson
2015-08-17 16:25 ` Artyom Tarasenko
2015-08-17 21:08 ` Aurelien Jarno
2015-08-27 15:29 ` Artyom Tarasenko
2015-09-02 4:34 ` Dennis Luehring
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