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5500系列名字都定了,定了啥时候上市了么?
赶紧把费电又性能低的FB-DIMM扔掉算了……
Anandtech的一点分析
In a previous server oriented article, we summed up a rough profile of SAP S&D:
• Very parallel resulting in excellent scaling
• Low to medium IPC, mostly due to “branchy” code
• Not really limited by memory bandwidth
• Likes large caches
• Sensitive to Sync (“cache coherency”) latency
One of the biggest bottlenecks for Intel has been the sync latency. It is possible that once the "sync" bottleneck was removed, the intel architecture is able to show it's real integer crunching power thanks to the out of order loads (memory disambiguation) and better branch prediction.Those are two areas where the opteron architecture is still weak.
[ 本帖最后由 Travis 于 2008-12-17 11:10 编辑 ] |
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