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exyiyesterday at 8:49 PM1 replyview on HN

It's 3 cycles for float multiplication (and 1 for shift right):

https://uops.info/table.html?search=mulss&cb_lat=on&cb_tp=on...

https://uops.info/table.html?search=shr&cb_lat=on&cb_tp=on&c...

In throughput it's even less of a difference: 2 per cycle vs 3 per cycle.


Replies

userbinatortoday at 3:27 AM

It's 3 cycles for float multiplication (and 1 for shift right):

3x faster

In throughput it's even less of a difference: 2 per cycle vs 3 per cycle.

50% faster