[dullgiulio]

Yes, it was an explicit adaptation, as documented in the sources themselves.

[weberc2]

I wonder if they considered jemalloc? Apparently tcmalloc does suffer from fragmentation issues over time, and I believe I've seen related issues crop up on the Go issue tracker. https://www.quora.com/Is-tcmalloc-stable-enough-for-producti...

EDIT: Not sure why I'm being downvoted; if this is a contentious topic, I wasn't aware. I'm certainly not trying to make a point one way or another; I only posted this hoping someone who was more knowledgeable than me could respond.