transaction.sync		# of transactions waiting to be committed
transaction.async	# of async transactions waiting
transaction.empty	# of transactions that did not do anything
log.writes		# of log buffer writes
log.blocks		# of log blocks written
log.noiclogs		# of log entry attempts during memory flush
log.force		# of calls to xfs_log_force
log.force_sleep		# of calls to xs_log_force_sleep