然而进行异构多核时代之后，性能可移植性(performance portability)将有望逐渐成为第一要义。如果某算法在指不同厂商的产品，或相同厂商的不同代产品之间，都有比较稳定的性能加速比，则称该程序有...
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这些语言提供了高性能，但是存在可移植性和可靠性等问题。
These languages offer high performance, but they suffer in terms of reliability and portability.
这样的结构确实带来了好的跨平台可移植性，但付出的代价是高 CPU 开销和较低的性能。
This structure does provide good cross-platform portability, but at the cost of high CPU overhead and lower performance.
除了其性能不如仅仅写入含更新属性的做法外，还会影响平台的可移植性。
Aside from the performance not being as good as writing out just the updated attributes, it also can hurt portability to other platforms.
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