Event	Waits	%Time -outs	Total Wait Time (s)	Avg wait (ms)	Waits /txn
reliable message	14,816	0.99	209	14	0.08
control file sequential read	530,831	0.00	108	0	2.71
control file parallel write	63,634	0.00	68	1	0.32
db file parallel write	22,192	0.00	59	3	0.11
gc cr block 2-way	35,411	0.00	16	0	0.18
CGS wait for IPC msg	1,882,810	100.00	15	0	9.61
log file parallel write	8,468	0.00	14	2	0.04
enq: WF - contention	1,510	0.26	9	6	0.01
log file sync	106	0.00	7	65	0.00
os thread startup	233	0.86	7	29	0.00
gc current multi block request

reliable message 这个等待事件，是因为网络原因，还是CRS问题！ 那这个等待事件怎么解决呢？

    When you send a message using the 'KSR' intra-instance broadcast
    service, the message publisher waits on this wait-event until
    all subscribers have consumed the 'reliable message' just sent.
     The publisher waits on this wait-event for three seconds and
    then re-tests if all subscribers have consumed the message, or
    until posted.
这是官方的解释，先确认是不是网络问题。