Ben Beuchler wrote:
While "threads" seems pretty clearly to be the hard limit on the
maximum number of slapd threads that will be spawned, how does
"concurrency" relate? Any good rules-of-thumb for how it should be
set?
concurrency is relevant on systems with M:N threads implementations, and
controls how many application threads to assign per kernel
thread/lightweight process. (Like new Solaris, old LinuxThreads.) It
doesn't really have any effect on e.g. NPTL (which is a 1:1 threads
model). Usually you can leave it alone; on an M:N model you could set it
to the number of available CPUs. This is very general advice, you need
to look at what pthread_set_concurrency really means on your platform
(assuming you're using POSIX threads).
--
-- Howard Chu
Chief Architect, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc
OpenLDAP Core Team http://www.openldap.org/project/
