I tried that one but had no success when calling NTSetInformationProcess with a value of 3. Aims to mimic Windows procexp from sysinternals, and aims to be more usable than top and ps. The tool from (3) uses OpenProcess from kernel32.dll and sets the parameter dsDesiredAccess to ALL_ACCESS. Shows process information: process tree, TCP IP connections and graphical performance figures for processes. So it seems something has to be done additionally to set the I/O Priority to the High level. In this documentation NTSetInformationProcess and NTQueryInformationProcess are mentioned too. I am on Windows 11 so this should mean the High Priority should be available. The level High has a remark which says: " Windows 7+ only (NT 6.1)". But no, this will immediately set to value back to 2.įortunately there is a documentaion of Process Lasso about the I/O Prio. Now one could think we can easily do this on our own and use the function NTSetInformationProcess and specify the value 3 to the parameter ProcessInformation. (I got this value from the function NTQueryInformationProcess). Here we have the option to set it to a value High which internally corresponds the value 3. Process Explorer is a freeware task manager and system monitor for Microsoft Windows created by SysInternals, which has been acquired by Microsoft and. This is a tool to change serveral process priorities including the I/O prio. Some of the resources mention the tool Process Lasso. Specifying the parameter ProcessInformation with the values 0, 1 and 2 is actually working. PsKill - kill processes by name or process ID. Process Monitor Monitor file system, Registry, process, thread and DLL activity in real-time. This uniquely powerful utility will even show you who owns each process. PsInfo - list information about a system. Process Explorer Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more. PsGetSid - display the SID of a computer or a user. Using the function NTSetInformationProcess from ntdll.dll you can change the I/O Priority.Īs all of the cited and other resources state one can set I/O Priority at the maximal level of Normal which corresponds internally to the value 2 ( 1 would mean Low and 0 means Very Low). The tools included in the PsTools suite, which are downloadable as a package, are: PsExec - execute processes remotely. restore the original task manager I’ve already tried clicking that menu again, but it doesn’t do anything. Process Explorer v17.05 (July 26, 2023) Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more. I know there are similar questions and tools (1) (2) (3) and many more.Įach of these resources in the web states that you need to use Windows NT API and with this it should be easy to change the priority. After replacing the default Windows task manager with Sysinternals’ process explorer via the Options Replace task manager menu, how do you undo that action, i.e.
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