FreeFileSync Forum

Hi Zenju,

Sounds good, so do you see a 9.6 release coming soon now? Or ok to to use latest beta for now until then?

I quite understand on not worth spending time to find the exact cause, as you say, looks like we have a good working version now .. must admit though it would still be interesting to ...

Hi Zenju,

Just run some tests with original v8.8, 9.6 first beta and latest 9.6 beta you posted yesterday ..

FreeFileSync 8.8

36 secs - 369MB/sec
34 secs - 393MB/sec
35 secs - 387MB/sec
37 secs - 366MB/sec

FreeFileSync 9.6 beta (1)

28 secs - 480MB/sec
28 secs - 476MB/sec
28 secs - 479MB/sec
28 ...

Hi Zenju,

Ok I've run some tests comparing v8.8, v9.6Beta & Finder copying a folder with files & sub-folders from internal to external SSD - Total size approx. 14GB made up of 290 files including few large files of 11GB, 2GB, 300MB, 200MB with the remainder being small files (it's a virtual machine ...

Hi Zenju,

If I read you right in what you say, the 9.5 beta (with 3rd application level buffer removed) whilst much faster on MacOS than with it, it's far slower on both Windows and Linux?

Also on the macOS, I haven't found it slower than Finder (must admit haven't done real tests) and the speed ...

Hi Zenju,

Well I think you've cracked it! :) Doing some tests (see below) comparing v8.8 with v9.6 beta not only has the problem gone away but it's now significantly faster (rather than slower) than v8.8 which I guess is due to the other improvements/updates made between 8.8 -> 9.6?

v8.8 - 43 ...

yes indeed .. for reference done some more tests switching between 8.8 / 8.9 alternatively and resuming/suspending a virtual machine between times for mix of large and small files with following results :

v8.8 - 51 files / 6.15Gb = 363MB/sec elapsed 17 seconds
v8.9 - 41 files / 5.50Gb = 227MB/sec ...

Just for reference .. 8.7 & 8.8 was getting about 370Mb but with 8.9 is was about 225Mb

ok just done a check .. 8.8 is ok but 8.9 isn't so it appears the performance changed with something in 8.9?

I haven't check recently but when I first discovered the problem a few months back I did try each version and believe I found 8.7 was the last version that speed was ok so I presume I found 8.8 was the first slow one .. but when I have a moment I will download 8.8 and do a check again to make sure.

I've been using FreeFileSync for ages on both Windows and Mac and think it's excellent but one issue I've been having is that the speed seems to have dropped since v8.7. Whenever I've tried updating to latest version(s) since they've been almost 50% slower in transfer .. in fact I tried a latest ...