Freefilesync running vey slow on mac11/7/2023 Since it's obvious my PC can do 150MB/s, that's pretty frustrating. So my question is, what causes the slowdown? A cacheing issue with USB3? But in that case, why does it never catch up again, especially when I have so much memory? Instead of the backup taking half an hour, I had to stagger it over three days and multiple reboots to get it finished. If I reboot and try it again, I get the 150MB/s speed again, but by the time it's done 10GB or so it starts dropping again. The CPU goes from c.1% usage up to c.20-30%. My PC has 32GB RAM, but even during the backup only 2GB is being used by the OS. It's as if the data transfer speed is being throttled.ĭuring this time I have a system monitor running. Kind of like a pulse, but the higher speeds are a bit lower each time, and it never goes back up to the fast speeds - max is c, 30MBs, but often at a crawl. It ends up dropping below 1MBs, sometimes to 0KBs, but then it gets faster again, then slower, then faster. Doesn't matter if it is on a big file like an iso or loads of tiny ones. However, after a short period of time (from 30 seconds to ten minutes) the speed starts dropping massively. On my old PC (USB2 only) I'd have been waiting hours. Great! Even with a huge backup of 200GB, FFS shows it will only take 20 mins or so. When I first start a large backup it has speeds of over 150 MB/s. It is a brand new PC, all components pretty fast and fancy. So I am now backing up my personal data from my internal ext4 HDD to an external ext4 HDD via USB3, using FreeFileSync. I also now make sure the drive is unmounted before logout (which can take a few minutes sometimes) - the original errors were probably bad drive etiquette on my part, thinking the drive was safe to unplug when it was actually still working (Disks showed it as being in the process of unmounting). my girlfriend's Windows laptop) - but now I just use ext4, and in an emergency would USB live-boot into Mint from her laptop, copy any files I need from the backup to her data drive, and then access them in Windows. Originally I was backing up to NTFS so that in an emergency I could still access my files from any PC (e.g. As a result I changed my process and have seen the reliability go up, fixing my original issues. Other operating systems: The latest FreeFileSync version from 2023 is also available for Mac.For background, I had some issues doing backups ( viewtopic.php?f=47&t=364853). It comes in both 32-bit and 64-bit downloads. Previous versions of the operating system shouldn't be a problem with Windows 8, Windows 7 and Windows Vista having been tested. What version of Windows can FreeFileSync run on?įreeFileSync can be used on a computer running Windows 11 or Windows 10. ZenJu accepts donations for the continued development of this free software. The latest version we have is 12.5 and is available to download here. With software released under the open source GPLv3 license, anybody can download, install, run and distribute the software with little in terms of restrictions.
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