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* |
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* <p> The allowed concurrency among update operations is controlled |
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* by the optional <tt>segments</tt> constructor argument (default |
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< |
* 16). The table is divided into this many independent parts; each of |
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> |
* 16). The table is divided into this many independent parts, each of |
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* which can be updated concurrently. Because placement in hash tables |
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* is essentially random, the actual concurrency will vary. As a rough |
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* rule of thumb, you should choose at least as many segments as you |