You'll just drive up processing costs and slow runtime performance.
否则只会提高处理成本和降低运行时性能。
Unless you have a small amount of data, this would slow runtime performance.
除非数据量不大，否则这样做会降低运行时性能。
The primary focus for 1.6 is improving performance during compile-time and runtime.
集中于1.6版的主要焦点是改进编译时和运行时的性能。
The second problem of runtime APIs is performance.
运行时api的第二个问题是性能。
The second problem of runtime APIs is performance.
运行时api的第二个问题是性能。
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