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Did Intel actually enable the TSX extensions in Skylake? If I'm not mistaken, they shipped it in the last couple of generations but disabled it after release. (
by youdontknowtho 10y ago
Did Intel actually enable the TSX extensions in Skylake? If I'm not mistaken, they shipped it in the last couple of generations but disabled it after release. (Something like that?)
It's something that I've wanted to play with for sometime. It's cool that GCE has them available as a service.
- flamedoge 10y agomobile chips have them disabled I believe
- blockoperation 10y agoIt's available on my laptop at least: $ egrep '^(model name|microcode)' /proc/cpuinfo | head -n2 model name : Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz microcode : 0x9e $ egrep -o ' (hle|rtm) ' /proc/cpuinfo | head -n2 hle rtm This is a mobile chip and an old stepping (and running the microcode that supposedly addresses the issue, presumably by disabling it on 'bad' chips?), so I'd be surprised if newer chips (especially server ones) didn't have it.
- flamedoge 10y agoHmm TIL. I think newer ones had an errata (or many) and Intel decided it wasn't worth fixing. Disappointing, but meh.. it is probably true that not many people use Tmem on laptops.