| Implementing Strong Consistency: update… |
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| Problems
with update |
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| 1. | What
about if the cache line is several words |
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| long? |
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| – | Each
update to each word in the line leads to a |
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| broadcast |
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| 2. | What
about old data which other processors |
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| are
no longer interested in? |
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| – | We’ll
keep broadcasting updates indefinitely… |
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| – | Do we
really have to broadcast every store? |
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| – | It
would be nice to know that we have exclusive |
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| access
to the cacheline so we don’t have to |
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| broadcast
updates… |
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