Anyone know if TSX (AVX2) is still broken? That's the microcode that Intel just flat out disabled recently instead of trying to patch, if I read things correctly.
If it's still broken, even on Haswell-e, theb that takes away one of the biggest future advantages of this platform over the original SB/SB-e and IB/IB-e that most of us are running at this point.
Are you sure TSX = AVX2? I looked up TSX on Wikipedia, and didn't see any mention of AVX2.
Just came across this beauty regarding the new chip...
Hah! ...what's antivirus?
I think it's another name for the annual flu shot?Originally Posted by zombie67
From AnandTech:
CaptureHaswell-E.PNG
Many motherboards with the X99 chipset will also support Xeon E5-2600 v3 series CPUs, such as this top-end CPU. 8 cores? Pfffft...
"Errata prompts Intel to disable TSX in Haswell, early Broadwell CPUs" (Link) This might clear things up.
"Intel 18 Core and 36 Thread “Xeon E5-2699 V3″ CPU Spotted And Tested" click image for article
Why do I get the feeling that waiting for a year or so to upgrade is the thing to do. I'm somewhat desperate to start weeding out my 2 core systems. But as long as I still use a single core P4 in my farm, I'm sure I can wait.
? I don't understand your point. The linked article says that TSX is still not working. Okay. But it does not answer the question, "Are you sure TSX = AVX2?". As far as I can tell, TSX and AVX2 are different things.
TSX: Transactional Synchronization Extensions (TSX) is an extension to the x86 instruction set architecture that adds hardware transactional memory support, speeding up execution of multi-threaded software through lock elision.
AVX: AVX2 expands most integer commands to 256 bits and introduces FMA. AVX-512 expands AVX to 512-bit support utilizing a new EVEX prefix encoding proposed by Intel in July 2013 and first supported by Intel with the Knights Landing processor scheduled to ship in 2015.
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