[Performance counter] Gen 1 Promoted Bytes/Sec [Description] 
Displays the bytes per second that are promoted from generation 1 to generation 2. Objects that are promoted only because they are waiting to be finalized are not included in this counter. Memory is promoted when it survives a garbage collection. Nothing is promoted from generation 2 because it is the oldest generation. This counter is an indicator of very long-lived objects being created per second. This counter displays the difference between the values observed in the last two samples divided by the duration of the sample interval.