• The traffic destined for the database is exclusively object data, and consists of raw event objects, reconstructed objects and analysis objects, together with small "tag" objects.

  • The write rate to the disk is always lower than the input rate from the ATM.

  • There is significant traffic towards the Reconstruction client, particularly when the client starts up: unexpected (it is schema information)

  • Summary: A lot of traffic in both directions on the ATM: only a small fraction of it ends up as objects in the database.

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