On Wed, Aug 14, 2019 at 5:35 AM Koen De Groote <koen.degro...@limecraft.com> wrote:
> ... > I've read that the log files are preallocated. I see them as being 65MB a > piece. > Yes. Preallocation of logs is an important performance trick. The point is that if a file doesn't change length when you write to it, then the file attributes don't have to change. Writing file attributes can be as expensive as writing the data and, in any case, isn't free and it has forced ordering.