Luca Foppiano wrote:
On 22 Mar 2018, at 11:37, Howard Chu <[email protected]> wrote:
According to my understanding the memory is dirty when 1)there are open
transactions, 2) the data has not been written back to the filesystem
Your understanding is incorrect. Dirty pages remain dirty until they are
written to stable storage (e.g., disk). A tmpfs/RAMdisk has no stable storage,
all of its pages reside only in RAM. That's the point of a RAMdisk.
Ok, thanks for have it clarified. I was just “hoping” LMDB would have not
notice the type of storage was syncing to.
And LMDB doesn't. The behavior you see is due to how tmpfs works.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
