reiser4 reserves 5% of disk space for its internal needs.
5% of today's big disks seems a little excessive. Does reiser4 really need
that much space or would less also suffice without compromising performance?
Is there research available which makes up the basis for the 5% number?
Thanx
Hans Reiser wrote:
Research for filesystems generally says that as you get more than 85%
full the performance goes down, by a lot as you get close to 100%. 5%
is probably too little rather than too much.
Wow. What is all that space used for? Other journalling file systems that
I have see
Hans Reiser wrote:
Wow. What is all that space used for? Other journalling file
systems that
I have seen have limited things like journals to a much smaller space,
BSD FFS has a 10% limit unless you are root. They are correct to do so.
Yes, they reserve that space so that
Hans Reiser wrote:
Journaling, and reserving space for good allocation, are totally
different concerns, I don't understand why you guys are conflating them.
Agreed, that journaling and reserving space for good allocation are
separate,
except that often the space for the journal is reserved
