Performance

Slow performance with a firewire device on Windows
Some people have reported very poor performance when copying files to and from external storage devices connected using Firewire on Windows 7 or 8. One poss...
Wed, 28 Nov, 2018 at 8:22 PM
Reducing the CPU usage when running a profile
How do I reduce the CPU usage when running a profile? There are three main ways to decrease the CPU load: Modify your profile and enable Expert mode (...
Thu, 6 Jul, 2023 at 7:05 PM
Memory RAM usage comparison
A comparison between memory (RAM) usage when using SyncBackPro, SyncBackSE and SyncBackFree. The tests were conducted using the following setup: Windo...
Thu, 6 Jul, 2023 at 7:08 PM
The first run of a profile takes a long time
When you run a new profile for the first time, it will almost always take significantly longer than subsequent runs of the same profile. This is normal and ...
Tue, 17 Mar, 2026 at 12:50 PM
Why Profiles Slow Down Over Time
A profile that originally completed in a few minutes may gradually take longer and longer as weeks and months pass. This is usually not caused by a problem ...
Tue, 17 Mar, 2026 at 12:58 PM
Profiles on login run slowly
Profiles set to run at Windows Login initially run very slowly in Windows Windows actively reduces the priority of any programs that are set to run on l...
Thu, 6 Jul, 2023 at 7:09 PM
Why Hashing Remote Files Can Be Extremely Slow
Overview SyncBack uses file hashing (e.g. MD5) for several important operations, including file integrity checking, copy verification, and rename detect...
Thu, 19 Mar, 2026 at 9:37 PM
Why Antivirus Software Can Slow Down Backups
Antivirus and endpoint protection software can significantly reduce the performance of file backup and synchronization operations. In some cases, a profile ...
Thu, 19 Mar, 2026 at 9:38 PM
Why Syncing Millions of Small Files Is Slower Than Syncing a Few Large Files
A common observation is that backing up or synchronizing a large number of small files is significantly slower than transferring the same total amount of da...
Thu, 19 Mar, 2026 at 9:39 PM
Why Running Multiple Profiles Simultaneously May Be Slower Than Running Them Sequentially
It may seem logical that running several profiles at the same time would complete faster than running them one after another. In practice, the opposite is o...
Thu, 19 Mar, 2026 at 9:40 PM