4 ms·
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
by jbapple 6y ago
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%"
- rrss 6y ago... but if you just ctrl-F for TSX, you probably won't find it, because of this unique web viewer.
- jeffbee 6y agoHas there ever been an Intel CPU with working TSX that didn't get disabled by a microcode update?
- namibj 6y agoAfaik Skylake/Kabylake.
- jeffbee 6y agoIt looks to me like Intel recommends disabling TSX on all SKUs due to Zombieload V2.
- namibj 6y agoWell, 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.)