Why does memory being used even if I do not refresh data flow ?

Hi Community,

Hope every one are protecting yourself from Corona Virus by following guidelines and keep yourself safe . 

I have few data flows created recently in my organization . For one data flow, i refreshed it on 13th March to understand how fast it refreshes data. However, memory is being used on every day for this data flow. I have attached screen shot below . COuld you please check and let me understand why resources are used even if i do not refresh this data flow. 

Thanks,

G Venkatesh