Timeline for Fastest way to duplicate files from one USB flash drive to multiple others?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 9, 2017 at 16:52 | comment | added | hschou | @unfa "bottleneck" I think you should add more USB controllers to the motherboard (not USB hubs) to speed up. Like this "2-Port USB 3.0 PCI Controller" addonics.com/products/ad2u3pci.php and then only use one of the USB ports. Note that /dev/urandom is really slow - you should test with /dev/zero | |
| Mar 9, 2017 at 16:08 | comment | added | unfa | Benchamarks: Copying 7,5 GB files with /dev/urandom data to 4 USB devices took 74 minutes in sequential, and 22 minutes in parallel. Writing 14 devices in parallel - looks like only 7 are active together at each moment - that's the USB 2.0 bottleneck. Still it completed in 28 minutes. | |
| Mar 9, 2017 at 15:46 | vote | accept | unfa | ||
| Mar 9, 2017 at 14:26 | history | edited | hschou | CC BY-SA 3.0 | Added `date`-stuff after 'benchmarking' was mentioned. |
| Mar 9, 2017 at 14:13 | comment | added | unfa | I'm going to try this approach and benchmark it against "sequential" rsync operation. | |
| Mar 9, 2017 at 13:05 | history | answered | hschou | CC BY-SA 3.0 |