[jbapple]

The benefits are visible if you search for the word "TSX". It says:

"Replacing the insert and update functions of our specialized growing hash table with Intel TSX variants increases the throughput of our hash table by up to 7%"

[jeffbee]

Has there ever been an Intel CPU with working TSX that didn't get disabled by a microcode update?

[namibj]

Afaik Skylake/Kabylake.

[jeffbee]

It looks to me like Intel recommends disabling TSX on all SKUs due to Zombieload V2.

[namibj]

Well, yeah, TSX appears to be a side channel attack exploitable by a malicious hyperthread. But that's not particularly close to TSX itself being buggy on Haswell.

If you only run trusted code, Zombieload V2 seems irrelevant (on first glance. I didn't look deeper to see if there are ways to exploit it from a bytecode interpreter or such.)

[rrss]

... but if you just ctrl-F for TSX, you probably won't find it, because of this unique web viewer.