Right-click on any drive and then select Properties. An update to a mission critical application where the problems manifest themselves the most was done about a month ago. There's no dedupe enabled in Windows, so we can't find a cause why +1 day files copy only at 50MB/s. Use CMD to Delete a File or Folder Method 1: Optimize Your Hard Disk 1. File transfers start off at a reasonable speed between server on the same VMWare host and then drop to almost nothing - occasionally they will actually stop and the copy job never finishes. The backed NetApp does use post compression and deduplication, but with tests on a seperate machine the deduped and compressed files were actually faster in copy then non toughed files, so it ruled out the NetApp. Files older than one day were stuck at 50MB/s and fresh files were going 200MB/s. vib file, but the file age does make a difference. Alt + Left/Right Helps you move back and forth among the folders. 7 圆4 installed and the transfer speed was ridiculously slow at 10-15kb/s. You’re going to need to paste your text somewhere. Sometimes Windows users suffer from a really slow file transfer on a LAN. Type Ctrl + V Shortcut to paste the text you’ve copied. We started to investigate as we would expect much higher speeds. Ctrl + C Copies any file without cutting it. it's blazing fast for a minute, then once buffer is emptied, it slows dramatically. We notice the copy speed was not going faster than about 50MB/s. popatim said: You've exceeded the drives speedy buffer and have dropped down to it's native speed would be my assumption. The file copy was initiated within the 2016 box from volume to volume. We recently needed to manually move/copy some. Those extends are backed by seperate VMWare datastores on NetApp NFS volumes. Opus being configured in a way that causes it to read data from the share or access it in other ways at the same time it is being witten is abother potential factor Process Montior could reveal that kind of thing.We use SOBR with 4 extends, all are 10TB in size and are formatted ReFS 64k on one single Windows 2016 box. Those things may not explain the whole difference between Explorer and the other two programs you've tested, but may account for some of it. Buffer sizes can also affect some network (and USB, as an aside) devices very differently. Different programs calculate speed differently. Explorer's progress dialog says it is complete abd closes a long time before it really is complete, while data is still in write buffers. I've found RichCopy much better, and Microsoft themselves made it available as an improvement over RoboCopy. Antivirus can slow down one program or method of copying while ignoring another. Using robocopy built in to windows is the fastest method Anti virus can slow it to a crawl as it will scan on read and write I'm surprised you recommend RoboCopy. (It's also worth noting the usual things about measuring file copy performance: Buffering can impact things greatly if doing the same copy more than once. I'm betting you'll see them with most programs. From what you've said, Opus isn't a required factor in seeing slow transfers to the device, since you saw them with another program as well. saving files to the network share using software, like saving an image in Photoshop or a video in Premier.Īt least based on the info we know so far, the question is why is the server slow when anything but Explorer (or other things using the shell filecopy API, which is very limited but also can be faster with some devices that aren't tested properly with anything else). Such devices will be slow with everything else. particular buffer sizes, maybe, although I can only guess) and run slowly when everything else sends data to them. Some devices are only tuned to the exact nuances of how the shell file copy API works (e.g. If non-buffered IO is enabled then separate threads are used for the read and write ends (and if it isn't, then the OS itself should do something similar to cache ahead of the read position). To check if hyperlinks is causing the slow down, duplicate the file, copy. It reads from the source file into a buffer and writes that buffer to the destination file. When DropBox is running, my Windows 10 File Explorer is slow (8 seconds) to. Opus doesn't do anything that special, at least that the device at the other end of the network should care about. It eventually slows down to match the speed the drive being written to is able to handle. This is due to the files being buffered in the Systems memory, which is considerably faster. You're taking about Opus doing something special to run slower with this device at the other end, but we're probably really talking about everything except the Windows shell file copy API. It is somewhat normal for there to be a fast burst when starting to copy that then slows down.
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