Most importantly, the sched_entity contains the vruntime (64-bit field), which indicates the amount of time the task has run and serves as the index for the red-black tree.
最重要的是， sched_entity包含vruntime（64位字段），它表示任务运行的时间量，并作为红黑树的索引。
How do I parse a bit field in PHP?
我如何解析PHP中的一个位域？
The compiler assumes the base type of the bit field to be unsigned.
编译器假定位域的基类型无符号。
This attribute indicates that the enum can be treated as a bit field; that is, a set of flags.
此属性表明枚举可以作为位域处理，即一组标志。
To test a bit field to determine whether a specific enumeration value is present, use the Boolean logical operators.
若要测试位元栏位，判断特定列举值是否存在，请使用布林逻辑运算子。
For a bit field to store and retrieve combined enumeration values correctly, each value that is defined in the enumeration must be a power of two.
若要使用位元栏位正确储存和撷取结合的列举值，列举中所定义的每个值都必须为二的次方。
For a bit field to store and retrieve combined enumeration values correctly, each value that is defined in the enumeration must be a power of two.
若要使用位元栏位正确储存和撷取结合的列举值，列举中所定义的每个值都必须为二的次方。
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