In maxdb help,there is a part of savepoint document:

As savepoints affect system performance, the database system does not perform a new savepoint automatically at the end of this time interval. It waits for 5,000 I/O operations and only then does it check how much time has elapsed since the last savepoint. This means that the system does not write a savepoint unless at least 5,000 I/O operations have taken place since the last savepoint. With a lower number of I/O operations, more time may elapse until the next savepoint.

   And the "_Restart_time" is 600 sec!

   Too long to active database writer and log writer.

In oracle,there is a concept named "checkpoint".I don't know whether "chechpoint = savepoint"

  thank!

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