Hi
I'm trying to sync about 2.5gbs of files between an external usb 3.0 hdd and an internal hdd on my pc and its taking about 45mins. Usually it takes about 1 - 3 mins.
How can I fix it?
Syncing between 2 HDDs very slow
- Posts: 1
- Joined: 28 Sep 2016
- Posts: 2
- Joined: 8 Oct 2016
i have too this !
- Posts: 17
- Joined: 28 Jun 2016
Hi,
As observed on my PC, USB 2.0 real speed is approx 20 Mb/s, while 3.0 is approx 120 Mb/s
At this speed, 2.5 Gb should take 20 seconds on USB 3.0, and 2 mns with 2.0.
Did you enable contents comparison, instead of mere file date and size ? Then, for each file, it creates an MD5 hash key, which uniquely identifies the file. This process takes much longer.
Otherwise, I can't see what's wrong...
BRgds.
As observed on my PC, USB 2.0 real speed is approx 20 Mb/s, while 3.0 is approx 120 Mb/s
At this speed, 2.5 Gb should take 20 seconds on USB 3.0, and 2 mns with 2.0.
Did you enable contents comparison, instead of mere file date and size ? Then, for each file, it creates an MD5 hash key, which uniquely identifies the file. This process takes much longer.
Otherwise, I can't see what's wrong...
BRgds.
- Site Admin
- Posts: 7211
- Joined: 9 Dec 2007
FreeFileSync does a direct memory comparison, which is slightly faster.it creates an MD5 hash key, which uniquely identifies the fileLapisLazuli
- Posts: 17
- Joined: 28 Jun 2016
Hi,
Question then, even if (sorry !) it does not relate to the original post: how do you compare large files, like vids or sofware kits? Isn't it possible to get short of memory?
Brgds.
Clever. Usually, file comparison uses hash keys, hence my reply. Next time, I'll remember to ask the author first!FreeFileSync does a direct memory comparison, which is slightly faster.
Question then, even if (sorry !) it does not relate to the original post: how do you compare large files, like vids or sofware kits? Isn't it possible to get short of memory?
Brgds.