Is there a research journal for the new z?

Rob Schramm

On Mon, Jul 17, 2017, 12:39 PM Parwez Hamid <[email protected]>
wrote:

> Re: VFM Vs Flash Express:
>
> Much simpler management of VFM resource (HMC task)
> No hardware repair and verify (no cables, no adapters)
> Better performance since no “I/O” to attached adapter takes place.
> Doesn't use I/O slots.
> RAS: Memory protected by RAIM and ECC (internal / main memory)
>
>
> Re: 10 core/5.2 GHZ/14 nm
>
> Customer benefits from the overall technology i.e. latest chip design,
> more function on the same size chip (CPACF, Compression,
> cache, reduced latency between the PU/SC chips and between CPC drawers
> etc. Overall more performance when compared to prior
> generation PU chips.
>
> Cache Improvements:
> New power efficient logical directory design
> 33% larger L1 I$ (128K)
> 2x larger L2 D$ (4MB)
> 2x larger L3 Cache with symbol ECC
>
> New Translation/TLB2 design
> 4 concurrent translations
> Reduced latency
> Lookup integrated into L2 access pipe
> 2x CRSTE growth
> 1.5X PTE growth
> New 64 entry 2gig TLB2
>
> Pipeline Optimizations
> Improved instruction delivery
> Faster branch wakeup
> Reduced execution latency
> Optimized 2nd generation SMT2
>
> Better Branch Prediction
> 33% Larger BTB1 & BTB2
> New Perceptron Predictor
> New Simple Call Return Stack
>
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-- 

Rob Schramm

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