[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [Bug 1594069] [NEW] SIMD instructions translated to scalar
From: |
Timothy Pearson |
Subject: |
[Qemu-devel] [Bug 1594069] [NEW] SIMD instructions translated to scalar host instructions |
Date: |
Sun, 19 Jun 2016 05:33:25 -0000 |
Public bug reported:
SIMD instructions inside the guest (NEON, MMX, SSE, SSE2, AVX) are
translated to scalar instructions on the host instead of SIMD
instructions. It appears that there have been a few efforts to rectify
this [1], and even a submitted patch series, but all discussion has
effectively died out [2].
I would like to see better SIMD performance on qemu, especially as
non-x86 architectures are becoming widely used (e.g. ARM).
[1]
http://dl.acm.org/citation.cfm?id=2757098&dl=ACM&coll=DL&CFID=633095244&CFTOKEN=12352103
[2] https://lists.nongnu.org/archive/html/qemu-devel/2014-10/msg01720.html
** Affects: qemu
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1594069
Title:
SIMD instructions translated to scalar host instructions
Status in QEMU:
New
Bug description:
SIMD instructions inside the guest (NEON, MMX, SSE, SSE2, AVX) are
translated to scalar instructions on the host instead of SIMD
instructions. It appears that there have been a few efforts to
rectify this [1], and even a submitted patch series, but all
discussion has effectively died out [2].
I would like to see better SIMD performance on qemu, especially as
non-x86 architectures are becoming widely used (e.g. ARM).
[1]
http://dl.acm.org/citation.cfm?id=2757098&dl=ACM&coll=DL&CFID=633095244&CFTOKEN=12352103
[2] https://lists.nongnu.org/archive/html/qemu-devel/2014-10/msg01720.html
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1594069/+subscriptions
- [Qemu-devel] [Bug 1594069] [NEW] SIMD instructions translated to scalar host instructions,
Timothy Pearson <=