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Test results for Broadwell and Skylake
Author:  Date: 2017-06-29 11:24
It would be pretty surprising if the gather performance improved much since at least since the original Skylake it was pretty much at 0.5 cycles/element, which is the limit of the DCU. So only by adding additional load hardware (quite expensive) or by optimizing certain gathers with identical or nearby elements (e.g,. from the same cache line) could I see the throughput going up much.

The latter approach probably doesn't cost too much, but only benefits certain workloads and not the general gather capability.

 
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