I am trying to add a custom metric based on the sys.dmosperformance_counters DMV. These are very useful for gaining Instance Level information. These counters increment as each lock is requested. I have used the “Use a calculated rate of change between collections” option which accurately depicts the graph I am trying to accomplish. The caveat is that these counters are reset to 0 when the instance is restarted. Therefore in any of my graphs, I get this huge negative value. This basically renders the metric useless because I cannot visualize any metrics once a server is rebooted.

Is there a way to set the minimum y value displayed in a graph OR is there a way for the collector to ignore any negative value for “rate of change”?