Windows sys internal process monitor2/2/2024 ![]() Now add a file access event filter: Path > is > c:\ps\procmon_example.txt > Include. Click Add to add a new filter to the list. ![]() We’ll add some additional filters.Ĭreate a filter for monitoring access to the registry key: Path > contains > \SOFTWARE\test > Include. In most cases, you don’t need to remove these filters. The default filter already excludes events of a standard Windows system activity and the procmon.exe process itself. The filters allow you to specify various criteria for events to be added or excluded from the monitoring. Now you need to configure the Process Monitor filters (Filter > Filter). Stop capturing events by unchecking the option File > Capture Events (Ctrl+E) and clear the current ProcMon log (Edit > Clear Display). When Process Monitor starts, it begins capturing all events according to the default filters. Let’s say, you need to track access to the registry key HKEY_CURRENT_USER\Software\test and file c:\ps\procmon_example.txt. In this article, we will show how to track accesses and changes to files and registry on your local computer using Process Monitor. Using Process Monitor to Track File and Registry Changes It intercepts system function calls for the following operations: access to the file system, registry, process activity, network connections. When ProcMon starts, it installs a special system driver PROCMON20.SYS. When you start Process Monitor for the first time, a license agreement (EULA) appears on the screen that requires user confirmation. Extract the archive and run the procmon.exe ( procmon64.exe) executable file as an administrator. Process Monitor does not require installation. ProcMon is not a built-in system utility, so you must download it manually from the Microsoft website. This is useful for diagnosing slow Windows boot. Log all operations during system boot (starting processes, services).For example, about the actions of a specific process, access to a specific file or a registry key Set filters to display only the necessary information.Collect data on the parameters of input and output operations.Track the startup and shutdown events of processes and threads, including information about the exit code.The ProcMon combines the capabilities of two legacy Sysinternals utilities at once - FileMon and RegMon. This utility allows you to show how processes access files on disk, registry keys, remote resources, etc. Happy Days!.The Process Monitor (ProcMon) tool is used to track the various processes activity in the Windows operating system. With the Process Explorer tool and SQL Server coupled in such a way, finding the full details about a hard hitting query takes less than a minute. These details can expose everything about the query, from the actual statement, the plan, the connection details – all the usual goodness from the SQL Server DMVs. To see all the details of the query which is causing the CPU load. The threads tab shows you the Operating System level threads which are running within the SQL Server process, complete with the ability to sort by thread utilisation and the Thread Id which is actually running the user query.Īrmed with this information, we can query SQL Server itself using: This can very quickly show me the SQL Server process is responsible for using CPU resources (which is the intention), but then right clicking on the SQL Server process and selecting “Properties” will give you a window such as this: Now, with the “problem” at hand, I can open up Process Explorer and sort by CPU usage. First I create an AdventureWorks workload which hammers a single CPU due to the MAXDOP 1 setting on the query. Consequently, I find this a VERY useful tool in my troubleshooting kit bag.Į.g…. I use this in anger, and it hasn’t let me down yet. Now, this technique is not new – in fact the guys at SQLSkills ( have blogged about this far better than I can – but…. ![]() ![]() I find this a very quick and easy way to go from CPU utilisation into SQL and identify the query which is burning CPU. Process Explorer allows you to correlate CPU thread activity with the SQL Server threads. Another SysInternals ( tool I use quite a bit is the Process Explorer, which has just had a new release, taking it to V.
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