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Sampling technique to adjust application sampling rate
Sampling technique to adjust application sampling rate
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机译:用于调整应用程序采样率的采样技术
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摘要
One embodiment provides a method, including: identifying an application executing across a plurality of processors, wherein the application generates communication messages between the plurality of processors; collecting, using a profiler, a plurality of samples of the messages, wherein the plurality of samples are collected at a predetermined sampling rate and wherein the collecting comprises interrupting the execution of the application to collect a sample; determining, using an adaptive sampling technique, if the sampling rate comprises a sampling rate that is sufficiently low while meeting a predetermined quality threshold; adjusting, based upon the sampling rate not comprising a sampling rate that is sufficiently low, the sampling rate, and then collecting samples until the sampling rate comprises the sampling rate that is sufficiently low while meeting a predetermined quality threshold; and building, using the collected samples, an output performance profile of the application.
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