Dear Alexey,
To view the list of existing calls to your 1C:Enterprise server (including scheduled jobs), use the list of connections to your server cluster.
Indeed, if there are a lot of scheduled job connections and no user connections, it may result in excessive server workload.
If your task is to check certain new data without loading the context of the infobase every minute for every infobase, the reasonable approach to perform the task is as follows:
Create a long-lasting job whose duration is, say, 10 hours and make it perform the required checks. You can set this job to run every 1 minute. When there is a running instance of the job, the system does not run a new instance. Though, once the job instance is over, the system starts a new instance of the job in 1 minute.
This minimizes the resource consumption on loading and releasing the context of the infobase.
Best regards,
Vladimir Gurov