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A comment on AMD’s aggressive pricing update on the EPYC 7371. Parent comment

Re:AMD’s aggressive pricing update on the EPYC 7371 by BeeOnRope on Saturday December 08, 2018 @06:44PM (#18638199)
> 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

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Re:AMD’s aggressive pricing update on the EPYC 7371 by loeg on Sunday December 09, 2018 @04:40AM (#18640093)
Yes, 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.

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