3 ms·
> I dispute the idea that SKL and the laptop/desktop space is significant in a discussion of AVX Well I think it is significant. I'd say that overall the lapto
by BeeOnRope 8y ago
> I dispute the idea that SKL and the laptop/desktop space is significant in a discussion of AVX
Well I think it is significant. I'd say that overall the laptop/desktop space makes reasonable use of AVX and AVX2, probably more than your average load in the data center.
HPC certainly makes the most use of AVX/AVX2, but on the laptop/desktop you have at least:
- Gaming
- Media encoding and in some cases decoding (this also happens on GPU)
- Rendering and graphics work (this also happens on GPU)
- All sorts of random AVX2 use in compiler generated code and runtime libraries (e.g., AVX2 is used widely in perf sensitive libc routines like memcpy) and even in JIT-generated code
- loeg 8y agoYes, good points. To nitpick (sorry): > AVX2 is used widely in perf sensitive libc routines like memcpy Depends on the libc. I believe FreeBSD's libc avoids AVX to avoid the additional context switching cost for libc-using programs that don't already use AVX.