Pádraig Brady <[email protected]> writes: >> fadvise was added to 'cp'? I assumed that the impact of it would be >> minimal, but that report proves otherwise at least for ZFS. > > We saw a 5% speedup when reading from SSD: > https://github.com/coreutils/coreutils/commit/15f1d0c9a > I measured a more significant speedup with spinning disks.
Great, thanks. 5% will likely be apparent for large files, so it is definitely worth using. I guess the issues are more likely to arise on complex filesystems like ZFS that support transparent compression and encryption. Collin
