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    Notepad++ using a lof of CPU

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    • PeterJonesP
      PeterJones @DaveyD
      last edited by

      @DaveyD ,

      I doubt that’s normal. I daily use v8.1.1 and have never seen high CPU usage except when I tell it to do something difficult (like a large search-and-replace).

      I wonder if you have a plugin that’s hogging resources, or something.

      As always with this type of question, supplying us with ?-menu’s Debug Info will help us know more about your setup (plugins, os build numbers, etc)

      1 Reply Last reply Reply Quote 1
      • DaveyDD
        DaveyD
        last edited by

        @PeterJones - thanks for that
        Happy to hear that this is not normal… :)
        Here is my debug info:

        Notepad++ v8.1.1   (32-bit)
        Build time : Jul  1 2021 - 14:04:28
        Path : C:\Programs\Notepad++ - Copy\notepad++.exe
        Command Line : 
        Admin mode : OFF
        Local Conf mode : ON
        Cloud Config : OFF
        OS Name : Windows 10 Enterprise (64-bit) 
        OS Version : 2009
        OS Build : 19042.1110
        Current ANSI codepage : 1255
        Plugins : BetterMultiSelection.dll ColorPicker.dll ComparePlugin.dll DSpellCheck.dll ElasticTabstops.dll Explorer.dll FileSwitcher.dll FingerText.dll LightExplorer.dll LocationNavigate.dll LuaScript.dll mimeTools.dll NavigateTo.dll NppConverter.dll NppExec.dll NppExport.dll NppFTP.dll NppTextFX.dll PythonScript.dll ScrollPastEOFUni.dll SurroundSelection.dll WindowManager.dll XBrackets.dll zoomdisabler.dll _CustomizeToolbar.dll 
        

        If you think that I need to start testing without plugins, Let me know

        Thanks,
        David

        PeterJonesP 1 Reply Last reply Reply Quote 1
        • PeterJonesP
          PeterJones @DaveyD
          last edited by

          @DaveyD said in Notepad++ using a lof of CPU:

          If you think that I need to start testing without plugins, Let me know

          That’s exactly what I was going to suggest. That’s a lot of plugins you’ve got.

          First, start with no plugins; then, if that improves the performance, then you’ll want to start re-enabling plugins one-at-a-time to see who the culprit is.

          In case you didn’t know, you can either use the -noPlugin command-line-option, or you could just rename C:\Programs\Notepad++ - Copy\Plugins to something else to disable all plugins (and rename it back to enable them all again). If you want to disable all but one, then go into C:\Programs\Notepad++ - Copy\Plugins, and rename all the folders except the one you want active to something like pluginname.old (that is, add the .old to each folder name)… then later, to re-enable that plugin, you just have to rename it back to the original folder name (remove the .old). (And if it wasn’t clear, exit Notepad++ before renaming the folders, and then re-run the application.)

          1 Reply Last reply Reply Quote 3
          • DaveyDD
            DaveyD
            last edited by

            @PeterJones - thanks. The weirdest thing happened. I did exactly as you described, one by one and at the end, none of them are an issue because now notepad++ is not using any CPU!!
            I have no clue what happened because before this I tested it several times and each time the CPU usage was the same at about 17%

            In any case, better this way than the other… :)

            Thanks,
            David

            1 Reply Last reply Reply Quote 2
            • Rossini NetoR
              Rossini Neto
              last edited by

              This problem occurs for me, even no plugins installed. I noted since July 1st update.

              PeterJonesP 1 Reply Last reply Reply Quote 0
              • PeterJonesP
                PeterJones @Rossini Neto
                last edited by

                @Rossini-Neto said in Notepad++ using a lof of CPU:

                This problem occurs for me, even no plugins installed. I noted since July 1st update.

                You didn’t supply the ? > Debug Info. If you’re going to add a “me too” post, it’s best to at least have followed all the advice already given in the discussion.

                Other questions:

                • Is it only when large files are loaded, or any time? (If so, how large?)
                • Is there a syntax highlighter lexer enabled (ie, is the Language menu selected None (Normal Text) or one of the others. If a different lexer is enabled, if you manually change it to None (Normal Text), does the CPU usage stay high, or does it drop to reasonable levels
                • If you exit and/or reboot, does it stop using large CPU levels?
                • Does it do the same thing if you download and run a portable version of v8.1.2 rather than your installed copy?
                mvlazaM 1 Reply Last reply Reply Quote 0
                • mvlazaM
                  mvlaza @PeterJones
                  last edited by

                  @PeterJones
                  I’m also experiencing high CPU usage, and didn’t know when it started.
                  I have removed notepad++ (including custom settings) and reinstalled from scratch and still noticed high CPU usage, without any file opened (wih default config).
                  I also tested the portable version (both 32 and 64 bits) with the same behavior: a few seconds after starting, CPU usage jump from 0% to 12% (one full CPU of my octa-core system)

                  Debug information below:
                  Notepad++ v8.1.2 (64-bit)
                  Build time : Jul 16 2021 - 01:59:50
                  Path : C:\Program Files\Notepad++\notepad++.exe
                  Command Line :
                  Admin mode : OFF
                  Local Conf mode : OFF
                  Cloud Config : OFF
                  OS Name : Windows 10 Home (64-bit)
                  OS Version : 2009
                  OS Build : 19043.1110
                  Current ANSI codepage : 1252
                  Plugins : mimeTools.dll NppConverter.dll NppExport.dll

                  Any ideas of what is going on?
                  NPpp_capture.png

                  PeterJonesP 1 Reply Last reply Reply Quote 0
                  • PeterJonesP
                    PeterJones @mvlaza
                    last edited by

                    @mvlaza ,

                    Any ideas of what is going on?

                    Sorry, no. I am not a developer. But I cannot replicate your circumstances. Without any files opened, and with no extra plugins other than the defaults, my Notepad++ v8.1.2 64bit instance uses 0% after the initial startup usage, which only lasts a few seconds.

                    59f365d7-3bd6-458b-8618-731019315776-image.png

                    Notepad++ v8.1.2   (64-bit)
                    Build time : Jul 16 2021 - 01:59:50
                    Path : C:\usr\local\apps\npp\npp.8.1.2.portable.x64\notepad++.exe
                    Command Line : 
                    Admin mode : OFF
                    Local Conf mode : ON
                    Cloud Config : OFF
                    OS Name : Windows 10 Enterprise (64-bit) 
                    OS Version : 1903
                    OS Build : 18362.1256
                    Current ANSI codepage : 1252
                    Plugins : mimeTools.dll NppConverter.dll NppExport.dll 
                    

                    Do you have anything in recent files history in Notepad++? Are you sure you deleted the custom settings – for example, does Settings > Preferences > Recent Files History look like:
                    63bfb569-94bc-43b3-9ccf-a791d99a6edf-image.png

                    If this is the first time that Notepad++ is run, is maybe your antivirus/antimalware software scanning Notepad++, and thus slowing it down (ie, making its startup time really long)? If you give AV a chance to catch up, does Notepad++ CPU usage ever go to reasonable? If after 5-10min, you exit Notepad++ and restart Notepad++ from the same location, does it still have high CPU usage?

                    1 Reply Last reply Reply Quote 0
                    • mvlazaM
                      mvlaza
                      last edited by

                      Peter, history was empty and I don’t think the issue has something to do with AV scanning - since CPU usage was only high for Notepad++.exe process.
                      I tested several strategies and none fixed.

                      But I have good news, after a clean reinstall and a extra reboot, the CPU usage is back to normal levels again .
                      I usually restart my computer every night, but this required an additional restart.

                      I’ll reconfigure my settings again and keep an eye on CPU usage on the following days, but I believe it is fixed now.

                      mvlazaM 1 Reply Last reply Reply Quote 1
                      • mvlazaM
                        mvlaza @mvlaza
                        last edited by

                        @PeterJones too soon to celebrate :-(
                        CPU at 12% - but look the following pattern (capture from process explorer):
                        NPpp__CPU_capture.png
                        You will notice that the are flat regions (about 12% CPU usage) - what it is interesting is that the Notepad++ windows was not on top of others (in other words, it was not in focus).
                        So if I minimize or send the notepad++ window to back, CPU usage increases, but when I’m editing the text files the CPU usage is typically lower (unfortunately this is not always true. Some of the time because of legit CPU usage for text suggestions, highlight, parenthesis prediction, etc but some are bogus CPU cycles since when I’m reading the text I expect the software to be idle).
                        Doing more tests, it doesn’t matter if the notepad++ window is covered or always shown - if it not the focus, the CPU usage will be high for sure. Tested both with dark mode on and off, same behavior.
                        Another test with a interesting result: open a modal window (like “sortcut map”) or simply open a menu (and leave it open) drops CPU usage instantly to zero. Looks like a window redraw/refresh issue to me.

                        I’m out of ideas for now and don’t know what else can be tested.

                        Thanks in advance,
                        Marcos

                        EkopalypseE 1 Reply Last reply Reply Quote 0
                        • EkopalypseE
                          Ekopalypse @mvlaza
                          last edited by

                          @mvlaza

                          The only two ways I know of to find out what could be causing this are,
                          run the executable with a debugger or, which I prefer, use
                          procmon to see what’s going on.
                          Just put a filter on the running process and see what it does.

                          1 Reply Last reply Reply Quote 1
                          • Fabio Furlan de CarvalhoF
                            Fabio Furlan de Carvalho
                            last edited by

                            I have the same problem, version 8.1.2 installed today 08/13/2021

                            PeterJonesP 1 Reply Last reply Reply Quote 0
                            • PeterJonesP
                              PeterJones @Fabio Furlan de Carvalho
                              last edited by PeterJones

                              @Fabio-Furlan-de-Carvalho said in Notepad++ using a lof of CPU:

                              I have the same problem, version 8.1.2 installed today 08/13/2021

                              I am sorry you are experiencing difficulty.

                              Could you please follow the advice already given to the previous user and answer any questions already given to the previous user. Without that, there isn’t anything we can do to help you.

                              1 Reply Last reply Reply Quote 1
                              • blacksncB
                                blacksnc
                                last edited by

                                Same problem here. Even with no files opened, the Notepad++ is using 20-25% of my CPU. It’s not normal.

                                • Tried to disable all plugins but I had no success in reducing the CPU usage.
                                • Installed 7.9.5 version (x64). Same results.
                                • Run as Admin. Unlucky.

                                Debug info:

                                Notepad++ v8.1.3   (64-bit)
                                Build time : Aug 10 2021 - 00:29:32
                                Path : C:\Program Files\Notepad++\notepad++.exe
                                Command Line : 
                                Admin mode : OFF
                                Local Conf mode : OFF
                                Cloud Config : OFF
                                OS Name : Windows 10 Home (64-bit) 
                                OS Version : 2004
                                OS Build : 19041.746
                                Current ANSI codepage : 1252
                                Plugins : mimeTools.dll NppConverter.dll NppExport.dll 
                                
                                

                                Any suggestions?

                                blacksncB 1 Reply Last reply Reply Quote 0
                                • blacksncB
                                  blacksnc @blacksnc
                                  last edited by

                                  @blacksnc Tryied something new and it managed to ~solve~ the high CPU usage. The solution? I simply installed the X86 version and the usage stayed around 0-2%.

                                  Seems to me that exists a bug in the x64 version of notepad++ that is causing this issue.

                                  For me the x86 version is fine, since I mainly use it to type some notes or read some files. But I don’t know if this version is OK for other users.

                                  Alex LinsA 1 Reply Last reply Reply Quote 0
                                  • Emerson Carvalho de SouzaE
                                    Emerson Carvalho de Souza
                                    last edited by

                                    Hello all,

                                    For me both versions x86 and x64 have about 25-30% of CPU, without any plugin (I removed all) and with older versions too. Any idea?

                                    42fea2b3-64cc-46d9-a04e-2c25a50407e6-image.png

                                    PeterJonesP 1 Reply Last reply Reply Quote 0
                                    • PeterJonesP
                                      PeterJones @Emerson Carvalho de Souza
                                      last edited by

                                      @Emerson-Carvalho-de-Souza ,

                                      Any idea?

                                      Plenty. Most of which were enumerated above. You’ve only answered questions to two of the many queries posted above. Some that you haven’t answered:

                                      Share ?-menu Debug Info

                                      Look at the recent-file-history (either in main File menu or a submenu thereof), and make sure there aren’t any

                                      Look at your current session and see whether there are any network drives or mapped drives for the files that are open.

                                      Look for virus scanners or the like that might be interfering with Notepad++'s running.

                                      Try a portable edition of the same version and see if it behaves the same. Try a portable edition of a different (newer or older) version and see if it behaves the same.

                                      Is it only when large files are loaded, or any time? (If so, how large?)

                                      Is there a syntax highlighter lexer enabled (ie, is the Language menu selected None (Normal Text) or one of the others. If a different lexer is enabled, if you manually change it to None (Normal Text), does the CPU usage stay high, or does it drop to reasonable levels

                                      If you exit and/or reboot, does it stop using large CPU levels?

                                      1 Reply Last reply Reply Quote 1
                                      • Emerson Carvalho de SouzaE
                                        Emerson Carvalho de Souza
                                        last edited by

                                        Hi @PeterJones , I’m sorry.
                                        On my recent files I have only 1 path, and no files opened.

                                        Notepad++ v8.1.4 (64-bit)
                                        Build time : Aug 21 2021 - 13:04:59
                                        Path : C:\Program Files\Notepad++\notepad++.exe
                                        Command Line :
                                        Admin mode : OFF
                                        Local Conf mode : OFF
                                        Cloud Config : OFF
                                        OS Name : Windows 10 Pro (64-bit)
                                        OS Version : 2009
                                        OS Build : 19043.1237
                                        Current ANSI codepage : 1252
                                        Plugins : none

                                        PeterJonesP 1 Reply Last reply Reply Quote 0
                                        • PeterJonesP
                                          PeterJones @Emerson Carvalho de Souza
                                          last edited by PeterJones

                                          @Emerson-Carvalho-de-Souza said in Notepad++ using a lof of CPU:

                                          On my recent files I have only 1 path

                                          You don’t say whether that was a local path on your machine’s HDD/SDD, or whether it was a network path. Which is really the information I was going for. But you could try File > Empty Recent File History and see if the performance improves when you restart.

                                          Or, as noted above, do the Settings > Preferences > Recent Files History and turn on the Don't check at launch time, which makes it so Notepad++ won’t try to see if files in the Recent Files History still exist or not.

                                          and no files opened.

                                          Okay

                                          With the version you supplied, I have been using it since the day it came out with no unexpected high-CPU events. So it’s not just the version. It’s something specific about your setup, and unfortunately, as a fellow user, there’s nothing more that I can do to help you. I have already suggested everything I can think of. Don’t forget to try everything already suggested in this thread.

                                          Good luck.

                                          1 Reply Last reply Reply Quote 1
                                          • lukas venuti coelhoL
                                            lukas venuti coelho
                                            last edited by lukas venuti coelho

                                            Hi guys, how are you?

                                            I had no problems wich the portable version of notepad++, I’m using it that way as it was impacting my machine resources.

                                            I had the same problem installing the application, I tested several versions, it could be a BUG with Win10 too.

                                            1 Reply Last reply Reply Quote 0
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