Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Is there any data on the latency of an AVX2 gather instruction?

Is there any data on AVX2 gather latency?

(for instance a _mm256_i32gather_ps instruction accessing a single cache line)

like image 543
user2059893 Avatar asked Oct 03 '22 11:10

user2059893


1 Answers

This page gives latency data for all intrinsics:

Intel Intrinsics Guide

The latency for _mm256_i32gather_ps is 6.

like image 67
SGS Avatar answered Oct 10 '22 03:10

SGS