I've just confirmed the problem again by trying to transfer a file between Windows 10 and Ubuntu 18.04.1 via samba. Upload speed from Windoes to Ubuntu is 110-115MB/S, while download from Ubuntu to Windows is only 88-90MB/S.
There seems to be another possibly related or unrelated issue. If SAME DIRECTION transfer is initiated from the Ubuntu machine, the download speed to Ubuntu is actually 85MB/s vs 112MB/S if it's initiated from Windows.. that seems to be really weird, but I'm not alone:
I've just confirmed the problem again by trying to transfer a file between Windows 10 and Ubuntu 18.04.1 via samba. Upload speed from Windoes to Ubuntu is 110-115MB/S, while download from Ubuntu to Windows is only 88-90MB/S.
There seems to be another possibly related or unrelated issue. If SAME DIRECTION transfer is initiated from the Ubuntu machine, the download speed to Ubuntu is actually 85MB/s vs 112MB/S if it's initiated from Windows.. that seems to be really weird, but I'm not alone:
https:/ /www.reddit. com/r/Ubuntu/ comments/ 82zvm5/ weird_issue_ file_transfers_ slower_ from_ubuntu_ to/