[USRP-users] [UHD] Release Candidate 3.8.5 Announcement

Tom Tsou tom.tsou at ettus.com
Tue Jul 21 13:56:16 EDT 2015


On Wed, Jul 15, 2015 at 4:33 PM, Perelman, Nathan via USRP-users
<usrp-users at lists.ettus.com> wrote:
> For the sc16->sc16 SSE converter, is that for the big to little endian Vita
> 49 to host conversion? Any idea about how much of a performance boost that
> is?

The converter improvement is significant, roughly 40% reduction on
Linux perf numbers, but keep in mind that x86 integer converter load
is not a major concern for most applications.

The impetus for the converter change was applications running at high
sample rates (e.g. 100+ Msps), where small performance improvements
scale to large ones. Also, simply by principle, integer conversion
should not be slower than floating point conversion.

  -TT




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