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[LOG] number of written datasets 0  11:54:38.214
[LOG] number of written datasets 1000  11:55:20.213
[LOG] number of written datasets 2000  11:55:58.490
[LOG] number of written datasets 3000  11:56:41.806
[LOG] number of written datasets 4000  11:57:22.823
[LOG] number of written datasets 5000  11:58:05.588
[LOG] number of written datasets 6000  11:58:39.054
[LOG] number of written datasets 7000  11:59:10.449
[LOG] number of written datasets 8000  11:59:47.087
[LOG] number of written datasets 9000  12:00:32.479
[LOG] number of written datasets 10000  12:01:23.451
[LOG] number of written datasets 11000  12:02:09.272
[LOG] number of written datasets 12000  12:03:04.068
[LOG] number of written datasets 13000  12:03:54.601
[LOG] number of written datasets 14000  12:04:53.114
[LOG] number of written datasets 15000  12:06:11.756