4 ms·
> does not necessarily mean you're actually writing out 20GB to the disk. You mean like preallocation? I think Virtualbox now does that. In the past it didn't
by blindm 6y ago
> does not necessarily mean you're actually writing out 20GB to the disk.
You mean like preallocation? I think Virtualbox now does that. In the past it didn't though, it just kept writing a bunch of zeroes to the drive until it reached 20GB.
- mmis1000 6y agoOr probably the filesystem decides to do it? The Refs will just ate adjacent 0 and assuming you want a fallocate here.