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To: Tenchusatsu who wrote (69159)11/25/1998 4:40:00 PM
From: Scumbria  Read Replies (1) of 186894
 
Ten,

Considering that Katmai New Instructions include prefetching and cache streaming features, much of the latency of RDRAM can be hidden in KNI code.

Theoretically this is correct. Cache preloading features have been around for a long time in other architectures. I have yet to meet a compiler writer who has any idea how to take advantage of them, without causing unwanted side effects.

The only DRAM which realisticlly offers better latencies than SDRAM is ESDRAM, which services page hits out of an sram cache.

Scumbria
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