ffs takes a very long time to scan items

Posts: 4 · alexsconway 10 Jul 2023, 12:28

Windows 10 64bit 19041
FFS 12.4 donation edition, mirroring from ssd hard drive to UBS3 stick.
13:02:43 Info Comparison finished: 369,810 items found – Time elapsed: 01:02:53
only three files neded updating and that took only 4 mins (one file was almost 1gig)
never used to take this long to do the comparison, more like <10mins.
I've done full chkdsk on both the drives and there were no errors to fix.

Any clues as to what to look for?

Posts: 4867 · xCSxXenon 10 Jul 2023, 13:48

Sometimes USB devices don't get inserted perfectly and cause the connection to be lowered to USB 2.0 speeds. Even if all four files were 1GB, it was only running at 17MB/s. Since you said that one file was almost 1GB, it was likely running even slower than that. I would reinsert the USB drive and try again, making sure to use an appropriate port

Posts: 4 · alexsconway 10 Jul 2023, 13:51

The actual transfer of the almost 1 gig file took a couple of minutes. That is fine.
It's the hour of comparison I have a problem with

Posts: 1202 · therube 10 Jul 2023, 14:45

What type of comparison are you doing?
Might it have changed, from time/size to content?

Posts: 4 · alexsconway 10 Jul 2023, 15:38

file time and size. The files that took a verrrrry long time to scan/comapre were not the ones that had changed

Posts: 1202 · therube 10 Jul 2023, 16:25

Antivirus interfering (as in scanning your files as you're attempting to read the file properties; date/size) [& as silly as that may sound]?

Posts: 4867 · xCSxXenon 10 Jul 2023, 18:26

Format could also be a factor. Important questions:
Is this a new issue with no changes in hardware?
Anything change since it worked 'correctly'? Software? Windows version?
I see you wrote it took <10 minutes before, but even that kind of sounds like a long time.
What brand/model of SSD and USB drive?

Posts: 4 · alexsconway 11 Jul 2023, 12:39

I have recently transferred from a sandisk with plastic housing that had cracked so it was unreliably connecting. I did a run on it and the scanning time was < 1minute. (I never had to time it before to <10minutes was my guess.)
Both were formatted to NTFS
The disk I transferred to is an Integral usb3.0 64G and that is pretty much the culprit.
Very strange that it is just excruciatingly slow at reading file properties!

Posts: 4867 · xCSxXenon 11 Jul 2023, 13:47

Not surprising. About a year ago, I transitioned to using a USB SSD and will never go back. I daily drive the SanDisk Extreme PRO, it is the fastest there is in this size. SSK also offers a similar product, but the write speeds do drop after a while, the SanDisk runs at full speed forever. Here's a synopsis:
viewtopic.php?t=9681#p35687