Quanah Gibson-Mount wrote: > > > --On Thursday, January 19, 2023 8:25 AM +0100 Ulrich Windl > <[email protected]> wrote: > >>>>> Quanah Gibson-Mount <[email protected]> schrieb am 18.01.2023 um >>>>> 14:50 in >> Nachricht <3D6804DEBBC5413284159965@[192.168.1.14]>: >> >> ... >>> I would note that it is not advised to use XFS with back-mdb. >> >> Would you explain why? Here we use XFS for all database filesystems. > > The filesystem journaling done by XFS is not required for back-mdb databases > and imposes a significant performance penalty for write operations. Unlike > ext4 > partitions it is not possible to disable the filesystem journal. The best > option for back-mdb databases on XFS is to tell XFS to use a external journal.
Comparison of LMDB performance across various filesystems http://www.lmdb.tech/bench/microbench/july/#sec11 -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/
