Univention Bugzilla – Bug 36091
Test performance under load with new dbwrap_tdb_mutexes:* parameter in smb.conf
Last modified: 2016-09-07 12:48:24 CEST
There is a new parameter in Samba 4.2 which is supposed to improve tdb (and ldb?) performance (under load?). Quoting the 4.2 release notes: ============================================================================== The tdb library, our core mechanism to store Samba-specific data on disk and share it between processes, has been improved to support process shared robust mutexes on Linux. These mutexes are available on Linux and Solaris and significantly reduce the overhead involved with tdb. To enable mutexes for tdb, set dbwrap_tdb_mutexes:* = yes in the [global] section of your smb.conf. ============================================================================== We should check if this parameter provides a significant increase in performance (and if it results in a stable operation). +++ This bug was initially created as a clone of Bug #35319 +++
AFAIK that parameter is only used by the dbwrap implementation (ctdb).