Multiple instances or processes of visual studio code in task manager for single application window
Solution 1
This behavior is by Design and is documented in the comments in the Github Issues #5856, #8006 and #20856
Summary from the comments mentioned in the Links
This behavior is a consequence of both how vscode was designed and the fact that it's build on Chromium/Electron. The number of processes should not really matter from an end user perspective, it's the amount of work each process does and the communication between them that are important.
By design, the UI framework we use is multi process by itself and then we have 1 process for extensions (per window), one process for file watching (per window) and 1 process for search. We also have 1 shared process for updates.
Using a Tool like Process Explorer, You can get more details about the Process.
Only one of the Process code.exe
would have the parent as explorer.exe
which denotes the Main Process which spawned other Children Processes. Following is a screenshot of how the Main code.exe
properties appears using the Tool Process Explorer.
Additionally, a quick glance at the command line arguments for each of the Children code.exe
process would provide more useful information as to what each process is supposed to do. For e.g. one of the Child process code.exe
seems to be an error Reporting Process for crashes.
"C:\Program Files (x86)\Microsoft VS Code\Code.exe" --reporter-url=https://ticinocrashreporter.azurewebsites.net/crash --application-name=VSCode "--crashes-directory=..\AppData\Local\Temp\VSCode Crashes" --v=1
Solution 2
Well I too just figured out that issue in my task manager. My case it is 6 instances. It was a lot more previously but once I cleared the recent project list in File > Open Recent, the number came down to 6.
Now the mystery of 6 was also resolved. The extra instances in task manager are used for the 'Extensions', 'Code editor' etc. windows / views inside VS Code.
You can verify this by killing one by one other instances in the task manager, as you do that the VS Code will start showing error and will complain about the instances that we are killing in task manager.
Hope it helps.
Comments
-
RBT almost 2 years
I'm using Visual Studio Code. I'm facing a performance issue on my machine. I went to task manager and saw that there are several instances of
Code.exe
in the process tab even though there is only one window of Visual Studio Code running/active on my PC.I can see that in all there are eight instances of
Code.exe
. Although, I can see that all eight instances are taking RAM memory in the range of few KBs to a maximum of 55 MB. So one thing was sure that these few processes are not eating up too much memory together but still their count stumbled me for a second. I had an understanding that one Visual Studio Code window should map to a singleCode.exe
process.I've one more observation. I opened another fresh window of Visual Studio Code and saw that the count of
Code.exe
processes increased by two instead of one this time. TotalCode.exe
process count now became 10 on its own when a total of 2 Visual Studio Code windows are currently active. I'm not sure what's going on in here. Can someone help me understand if this is the right behavior on how Visual Studio Code is implemented internally? -
RBT about 7 yearsInterestingly when I looked at the properties of main
code.exe
process (parent of othercode.exe
processes) in process explorer, it shows its parent as<Non-existent Process>(5188)
. I checked the process explorer and task manager both but there is no explorer process running with PID 5188. Does windows play some trick to keep suchexplorer.exe
process hidden from the user. I can see anotherexplorer.exe
process with a different PID 3056 though. Does window maintains multiple/severalexplorer.exe
processes meant for different purposes? -
Abhinav Galodha about 7 yearsSame exe can be run under different user accounts. Windows can have multiple
explorer.exe
running under different user accounts. -
Rich Lysakowski PhD over 2 yearsWhat a terrible design! These should be threads, not full Windows processes.