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④ Thread switching cost is very high. When the operating system switches threads, the context of the thread needs to be preserved and then the system call is executed. If the number of threads is too high, it will not only bring many useless context switches, but also may cause the time for thread switching to be performed to be even longer than the time for thread execution. At this time, the performance is often that the system load is too high and the utilization rate of CPU SY (system CPU) is extremely high, resulting in the system almost falling into an unavailable state.大约过了15秒左右，后面车夫实在忍不住了：公子，拉进门还是？杨寿全夫妇这才发现后面还有一大堆行李，比杨长帆分家时带走的还要多。……孤山之上，卓一航双目湿润凝视着优昙仙花。His eyes were red, his tears rolled down, his whole body trembled, and even his handcuffs and shackles were shaking. At this moment, he was like a child who had done something wrong, as if praying for the forgiveness of adults, but the law would give him the fairest judgment.雅丽莎曾经以为自己能和温柔的妇产科医生尔璞结婚就跟中了彩票一样幸运，直到他们的结婚十周年纪念日，尔璞决定对雅丽莎提出离婚，雅丽莎非常伤心。原来幸福的婚姻背后隐藏了诸多不为人知的秘密。Candidates' Results Review and Registration