New serverStatus metrics:

• "profiler.totalWrites": Total number of writes to profile collections on all databases
• "profiler.activeWriters": Instantaneous number of operations writing to a profile collection on all databases
• "catalogStats.systemProfile": Total number of profile collections that exist on all databases
• (8.0, 8.1 only) "metrics.queryExecutor.profiler.collectionScans.nonTailable": Non-tailable cursors opened on a profile collection
• (8.0, 8.1 only) "metrics.queryExecutor.profiler.collectionScans.tailable": Tailable cursors opened on a profile collection
• (8.0, 8.1 only) "metrics.queryExecutor.profiler.collectionScans.total": Total number of cursors opened on a profile collection