我正在尝试使用sparklens对火花流应用程序进行性能分析。它给出了这样的结果
Executor count 1 ( 80%) estimated time 01m 29s and estimated cluster utilization 18.55%
Executor count 2 (100%) estimated time 01m 28s and estimated cluster utilization 9.36%
Executor count 3 (150%) estimated time 01m 28s and estimated cluster utilization 6.26%
Executor count 4 (200%) estimated time 01m 28s and estimated cluster utilization 4.69%
Executor count 6 (300%) estimated time 01m 28s and estimated cluster utilization 3.13%
Executor count 8 (400%) estimated time 01m 28s and estimated cluster utilization 2.35%
Executor count 10 (500%) estimated time 01m 28s and estimated cluster utilization 1.88%
即使如果我增加执行者,估计的时间也是一样的。
这些建议是否正确?