First, the up_threshold is set to 80 by default, meaning that once the processor utilization reaches above 80 percent, the governor increases the frequency.
首先，up _ threshold默认设置为80，表示一旦处理器利用率超过80%，该调控器将提高频率。
If the processor type cannot be determined (possibly because it is not supported), the JIT produces a set of instructions for whatever the default processor is set to in that particular JVM version.
如果不能确定处理器类型(可能是因为不支持)，那么JIT为那个特定的JVM版本中设置的默认处理器生成一组指令。
Instructions produced for the default processor may be outside the set of instructions understood by the host processor.
为默认处理器生成的指令可能超出主机处理器所能理解的指令集的范围。
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