Paul E. McKenney 269dcc1c2e rcu: Add tracing data to support queueing models ... The current tracing data is not sufficient to deduce the average time that a callback spends waiting for a grace period to end. Add three per-CPU counters recording the number of callbacks invoked (ci), the number of callbacks orphaned (co), and the number of callbacks adopted (ca). Given the existing callback queue length (ql), the average wait time in absence of CPU hotplug operations is ql/ci. The units of wait time will be in terms of the duration over which ci was measured. In the presence of CPU hotplug operations, there is room for argument, but ql/(ci-co+ca) won't steer you too far wrong. Also fixes a typo called out by Lucas De Marchi <lucas.de.marchi@gmail.com>. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>		2010-09-23 09:16:53 -07:00
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00-INDEX
arrayRCU.txt
checklist.txt	rcu: document ways of stalling updates in low-memory situations	2010-08-20 09:00:14 -07:00
listRCU.txt
lockdep.txt
NMI-RCU.txt
rcu.txt
rcubarrier.txt
rculist_nulls.txt
rcuref.txt
RTFP.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
stallwarn.txt	rcu: upgrade stallwarn.txt documentation for CPU-bound RT processes	2010-08-23 16:34:02 -07:00
torture.txt
trace.txt	rcu: Add tracing data to support queueing models	2010-09-23 09:16:53 -07:00
UP.txt
whatisRCU.txt