I’m currently watching the progress of a 4tB rsync file transfer, and i’m curious why the speeds are less than the theoretical read/write maximum speeds of the drives involved with the transfer. I know there’s a lot that can effect transfer speeds, so I guess i’m not asking why my transfer itself isn’t going faster....
ksmbd is still SMB, except it’s implemented within the Linux kernel. As a result, file transfers speeds are improved greatly compared to pure-Samba which runs only in userspace.
The second thing is, you need to check which SMB protocol you’re using, ideally you’d want to use at least SMB 3, anything older than that will be painfully slow.
Finally, I read in your other comment that you’re using spinning disks and a USB dock. That adds significant overheads.
The Ironwolf drive benchmarks starting at 250MB/s and slows down to 100MB/s as it reaches the end of the drive. (spinning disks gradually become slower the more full it becomes.) Now add file fragmentation + filesystem overheads (buffers, cluster size allocation etc) and the speeds could go down considerably.
Then there’s your SATA > USB dock - no dock would ever reach 5Gbps, that’s just false advertising - it’s only mentioning the theoretical protocol speed. In reality, you’d be seeing something like below 100MB/s write speeds for 128k sequential writes, but if your block size is smaller, expect far slower writes.
Combine all of the above and you can imagine just how much slower this whole thing can be.
For reference, see this benchmark as an example, to see what’s “normal” for a simple file transfer to a blank drive with no fragmentation: www.anandtech.com/show/6014/…/3
Hi guys, I’m a blackberry keyone user and I’m pretty much used to. Due it have only 3 gigs of ram I began to use Mini Desktop launcher, that goes only to 40 mb of consumption. My doubt is, there’s another lightweight launcher outside the non distraction ones? (Olaunche, ulauncher, mlauncher…)
Linux file transfer speed bottlenecks?
I’m currently watching the progress of a 4tB rsync file transfer, and i’m curious why the speeds are less than the theoretical read/write maximum speeds of the drives involved with the transfer. I know there’s a lot that can effect transfer speeds, so I guess i’m not asking why my transfer itself isn’t going faster....
looking for lightweight launchers but...
Hi guys, I’m a blackberry keyone user and I’m pretty much used to. Due it have only 3 gigs of ram I began to use Mini Desktop launcher, that goes only to 40 mb of consumption. My doubt is, there’s another lightweight launcher outside the non distraction ones? (Olaunche, ulauncher, mlauncher…)