On Sun, 20 Oct 2024 at 13:54, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > > On Sun, 20 Oct 2024 at 13:30, Kent Overstreet <kent.overstreet@xxxxxxxxx> wrote: > > > > Latency for journal replay? > > No, latency for the journaling itself. Side note: latency of the journal replay can actually be quite critical indeed for any "five nines" operation, and big journals are not necessarily a good idea for that reason. There's a very real reason many places don't use filesystems that do fsck any more. But yes, it's a different issue from the runtime performance / latency side. Linus