Microsoft has lastly addressed a recognized concern inflicting important efficiency hits when copying giant recordsdata over SMB after putting in the Home windows 11 2022 replace.
The bug was mounted with the KB5022913 February 2023 non-security preview replace launched on February 2022, which additionally launched newly introduced Second 2 options.
“This replace addresses a difficulty that impacts copying from a community to a neighborhood drive. Copying is slower than anticipated for some customers,” Microsoft stated.
The repair comes after Microsoft’s Ned Pyle defined in October that “there’s a efficiency discount in 22H2 when copying bigger recordsdata from a distant pc all the way down to a Home windows 11 pc or when copying recordsdata on a neighborhood drive.”
Whereas Redmond didn’t share particulars on the precise efficiency lower, in keeping with consumer reviews, the time wanted for file operations on affected methods may greater than double in some circumstances.
“You usually tend to expertise this concern copying recordsdata to Home windows 11, model 22H2 from a community share through Server Message Block (SMB) however native file copy may additionally be affected,” Microsoft added in a September replace to the KB5017389 preview replace help doc.
Two months later, in November, the corporate started testing a repair that rolled out to some methods enrolled within the Home windows Insider program working Home windows 11 Preview Construct 25252.
Workaround out there
KB5022913 permits Home windows admins to check enhancements and bug fixes that may roll out to all Home windows customers with subsequent month’s Patch Tuesday.
Nevertheless, this one is elective and doesn’t comprise safety updates. You’ll be able to solely set up the elective KB5022913 replace by clicking the ‘Obtain and set up’ button after checking for updates from Settings > Home windows Replace.
It’s also possible to manually obtain and set up the KB5022913 replace to your platform from the Microsoft Replace Catalog.
Microsoft has additionally shared a short lived repair that affected clients can use to workaround the file copy efficiency hit.
Customers can mitigate the recognized efficiency concern impacting file copying over SMB with the assistance of file copy utilities that do not make use of cache supervisor (buffered I/O).
Two of the out there choices embrace the built-in robocopy and xcopy instruments with the template instructions listed under:
robocopy someserversomeshare c:somefolder somefile.img /J
OR
xcopy someserversomeshare c:somefolder /J