These tools are of a type that continually refreshes the snapshot, effectively giving you near-real-time feedback.Īnd if there happens to be a dedicated monitoring program of that type for what you need to track, that’s great, but that isn’t always the case. Others provide a continuous monitor: SQL Profiler or SysInternals’ Process Explorer / Process Monitor are noteworthy examples. You can refresh that snapshot as you wish, in order to monitor those resources. Some give you an instant in time: tools like Windows’ Event Viewer snapshots your event log, and SQL Server Management Studio lets you snapshot any table (or group of tables with a join). There are a variety of dedicated tools for some of these types of things. We want to see what effect our code is having by keeping track of those external resources in real-time, or close to it. Often times, as developers, we want to exercise some code that has side effects on external resources-be it database transactions, file creation, file content updates, event log records, process state, memory use, and so on.
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