From: Michael Tokarev <mjt@tls.msk.ru>
To: Avi Kivity <avi@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] Make target_phys_addr_t 64 bits unconditionally
Date: Thu, 04 Oct 2012 14:23:40 +0400 [thread overview]
Message-ID: <506D63AC.20304@msgid.tls.msk.ru> (raw)
In-Reply-To: <1349345262-27234-1-git-send-email-avi@redhat.com>
On 04.10.2012 14:07, Avi Kivity wrote:
> The hassle and compile time overhead of maintaining both 32-bit and 64-bit
> capable source isn't worth the tiny performance advantage which is seen on
> a minority of configurations. Switch to compiling libhw only once, with
> target_phys_addr_t unconditionally typedefed to uint64_t.
Isn't it the real difference between qemu-system-i386 and qemu-system-x86_64,
and why -i386 is quite a bit faster in TCG mode than -x86-64, as has been
noted by Jan?
Just.. asking :)
Thanks,
/mjt
next prev parent reply other threads:[~2012-10-04 10:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-04 10:07 [Qemu-devel] [PATCH] Make target_phys_addr_t 64 bits unconditionally Avi Kivity
2012-10-04 10:23 ` Michael Tokarev [this message]
2012-10-04 10:28 ` Peter Maydell
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