diff options
Diffstat (limited to 'results/classifier/zero-shot-user-mode/output/instruction/1594069')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/output/instruction/1594069 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/results/classifier/zero-shot-user-mode/output/instruction/1594069 b/results/classifier/zero-shot-user-mode/output/instruction/1594069 new file mode 100644 index 00000000..2189df99 --- /dev/null +++ b/results/classifier/zero-shot-user-mode/output/instruction/1594069 @@ -0,0 +1,14 @@ +instruction: 0.888 +syscall: 0.057 +runtime: 0.055 + + + +SIMD instructions translated to scalar host instructions + +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 \ No newline at end of file |