This can occur when there are many performance counters to collect from many different computers as specified by the counter set mappings for the load test.
当从负载测试的计数器集合对应所指定的不同电脑收集许多效能计数器时，便会发生此错误。
This error indicates that the test controller was not able to collect performance counter results from all the computers in the specified sample rate for the load test.
这个错误表示测试控制器无法以负载测试的指定取样率，从所有电脑收集效能计数器结果。
A CPU event counter is used to collect hardware-specific performance data.
CPU事件计数器可用来收集硬体的相关效能资料。
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