Windows 10: Robocopy very slow, even if I do not copy anything and just create a list /L

Discus and support Robocopy very slow, even if I do not copy anything and just create a list /L in Windows 10 Network and Sharing to solve the problem; I want to create a backup with the "robocopy" command.I created a local directory with several junction points which all point to the different folders... Discussion in 'Windows 10 Network and Sharing' started by King555a, Mar 4, 2023.

  1. KING555A
    King555a Win User

    Robocopy very slow, even if I do not copy anything and just create a list /L


    I want to create a backup with the "robocopy" command.I created a local directory with several junction points which all point to the different folders I want to backup and a network drive, which is a SMB share on the Internet cloud hosting provider.I use this command:robocopy D:\backup\ M:\ /COPYRobocopy very slow, even if I do not copy anything and just create a list /L :DAT /DCOPYRobocopy very slow, even if I do not copy anything and just create a list /L :DAT /MIR /COMPRESS /R:2 /W:1 /UNICODE /FFT /DST /UNILOGRobocopy very slow, even if I do not copy anything and just create a list /L :D:\backup.log /TEE /LThis does only list the files which would be synchronized. It takes more than 25 minutes. Doing the same sync with "TotalCommander" takes only 6 minutes. There are 212,142 files.Is this normal for robocopy? Or

    :)
     
    King555a, Mar 4, 2023
    #1
  2. MATTHEW WAI
    Matthew Wai Win User

    Robocopy vs Copy-paste

    Robocopy "D:\Folder" "H:\Folder" /L /Mir

    The above command lists thousands of files, including the ones not to be copied.
    Is there a command which lists only the ones to be copied, excluding the ones to be skipped?
    There is no need to view the skipped ones.
     
    Matthew Wai, Mar 4, 2023
    #2
  3. HSEHESTEDT
    hsehestedt Win User
    Robocopy vs Copy-paste

    Actually, that command won't list files that are not being copied BUT it lists all the directories that it traverses. To suppress that. simply tack on a /NDL (No Directory Listing).

    In the sample output below, note that the folder I am mirroring has 820 directories and 2708 files. The folders are already synced so not a single file or directory is displayed in the output.

    Code:
     
    hsehestedt, Mar 4, 2023
    #3
  4. GREG CARMACK - WINDOWS MVP 2010-2020 (RETIRED)
    Greg Carmack - Windows MVP 2010-2020 (retired) Win User

    Robocopy very slow, even if I do not copy anything and just create a list /L

    robocopy text going slow

    Hello Slick. I'm Greg, here to help you with this.

    Here's how to troubleshoot slow Robocopying and other alternatives:

    https://www.reddit.com/r/sysadmin/comments/2eww...

    https://www.technipages.com/copy-files-faster-w...

    https://www.makeuseof.com/tag/4-ways-to-copy-fi...

    https://arstechnica.com/civis/threads/speeding-...

    http://techzle.com/are-files-copying-slow-try-t...

    Feel free to ask back any questions. Based on the detailed results you post back, I will have other suggestions if necessary.

    ______________________________________________

    Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.
     
    Greg Carmack - Windows MVP 2010-2020 (retired), Mar 4, 2023
    #4
Thema:

Robocopy very slow, even if I do not copy anything and just create a list /L

Loading...

  1. Robocopy very slow, even if I do not copy anything and just create a list /L - Similar Threads - Robocopy very slow

  2. Robocopy making disk access very slow

    in Windows 10 Network and Sharing
    Robocopy making disk access very slow: Hello ,I am using Robocopy to periodically copy data media data mp4 video files from Local drive to network drive.When Robocopy is executing copy command, local disk access is very slow and becoming almost unusable to open it.Tried with different thread options 8,16,32 etc....

  3. Robocopy making disk access very slow

    in Windows 10 Gaming
    Robocopy making disk access very slow: Hello ,I am using Robocopy to periodically copy data media data mp4 video files from Local drive to network drive.When Robocopy is executing copy command, local disk access is very slow and becoming almost unusable to open it.Tried with different thread options 8,16,32 etc....

  4. Robocopy making disk access very slow

    in Windows 10 Software and Apps
    Robocopy making disk access very slow: Hello ,I am using Robocopy to periodically copy data media data mp4 video files from Local drive to network drive.When Robocopy is executing copy command, local disk access is very slow and becoming almost unusable to open it.Tried with different thread options 8,16,32 etc....

  5. Robocopy very slow, even if I do not copy anything and just create a list /L

    in Windows 10 Gaming
    Robocopy very slow, even if I do not copy anything and just create a list /L: I want to create a backup with the "robocopy" command.I created a local directory with several junction points which all point to the different folders I want to backup and a network drive, which is a SMB share on the Internet cloud hosting provider.I use this...

  6. Robocopy very slow, even if I do not copy anything and just create a list /L

    in Windows 10 Software and Apps
    Robocopy very slow, even if I do not copy anything and just create a list /L: I want to create a backup with the "robocopy" command.I created a local directory with several junction points which all point to the different folders I want to backup and a network drive, which is a SMB share on the Internet cloud hosting provider.I use this...

  7. FOLDER SIZE NOT CORRECT AND COPYING IS VERY SLOW EVEN GOING TO ZERO

    in Windows 10 Network and Sharing
    FOLDER SIZE NOT CORRECT AND COPYING IS VERY SLOW EVEN GOING TO ZERO: DISAPPOINTED THAT MICROSOFT HAS DONE NOTHING TO FIX 2 COMMON PROBLEMS. IF YOU WANT PEOPLE TO USE APPLE THIS IS HOW TO DO IT. I THOUGHT MY EXTERNAL DRIVE WAS BAD BUT AFTER SEEING THE SHEER NUMBER OF COMPLAINTS I REALIZED THAT THE PROBLEM WAS WITH MICROSOFT. WHY SHOULD I NEED...

  8. Windows 10 very slow, can't do anything with it.

    in Windows 10 BSOD Crashes and Debugging
    Windows 10 very slow, can't do anything with it.: So had Windows 10 on my HP Envy for a good couple years now. It's up to date, 1TB hard drive, 12gb ram, working fine. Switched it on yesterday and took 3 hours to start. Over an hour to get to log on screen.. Almost same amount to get to enter password screen. Further...

  9. very very very slow right click on desktop or copy paste or create folder on any task

    in Windows 10 BSOD Crashes and Debugging
    very very very slow right click on desktop or copy paste or create folder on any task: I am using Dell's Latitude 7370 laptop with Windows 10 OS. The PC has so slow that, whatever I click on it, it takes literally 1-2 minutes to perform any task. I have installed ubuntu14 using virtual box, in ubuntu 14 does the task within a second. I am eagerly...

  10. Copying to USB Very Slow

    in Windows 10 Performance & Maintenance
    Copying to USB Very Slow: A few times a week I backup my data files to my extended hdd and my USB. Seems it take forever to copy to the USB. Very short time to copy to Extended hdd. I've tried deleting to old backup first so there will be no need to replace and files. That doesn't seem to be...