On 8/27/24 12:13, Jatin Bhateja wrote:
Hi @vamsi-parasa , Kindly also add a JMH micro benchmark, I did a first run and see around 4% performance drop with attached micro on Sapphire Rapids. [test.txt](https://github.com/user-attachments/files/16761142/test.txt)
If I had to guess, that's because there are no infinities and no NaNs so HotSpot will perfectly predict . Given that this "normal" execution is the expected use of tanh(), it seems to me that this intrinsic won't help in the usual case, and may make things worse.
