采集与锁等待相关事件的百分比：
select t2.event,
round(100 * t2.time_waited / (t1.w1 + t3.cpu), 2) event_wait_percent
from (SELECT SUM(time_waited) w1
FROM v$system_event
WHERE event NOT IN
('smon timer',
'pmon timer',
'rdbms ipc message',
'Null event',
'parallel query dequeue',
'pipe get',
'client message',
'SQL*Net message to client',
'SQL*Net message from client',
'SQL*Net more data from client',
'dispatcher timer',
'virtual circuit status',
'lock manager wait for remote message',
'PX Idle Wait',
'PX Deq: Execution Msg',
'PX Deq: Table Q Normal',
'wakeup time manager',
'slave wait',
'i/o slave wait',
'jobq slave wait',
'null event',
'gcs remote message',
'gcs for action',
'ges remote message',
'queue messages',
'wait for unread message on broadcast channel',
'PX Deq Credit: send blkd',
'PX Deq: Execute Reply',
'PX Deq: Signal ACK',
'PX Deque wait',
'PX Deq Credit: need buffer',
'STREAMS apply coord waiting for slave message',
'STREAMS apply slave waiting for coord message',
'Queue Monitor Wait',
'Queue Monitor Slave Wait',
'wakeup event for builder',
'wakeup event for preparer',
'wakeup event for reader',
'wait for activate message',
'PX Deq: Par Recov Execute',
'PX Deq: Table Q Sample',
'STREAMS apply slave idle wait',
'STREAcapture process filter callback wait for ruleset',
'STREAMS fetch slave waiting for txns',
'STREAMS waiting for subscribers to catch up',
'Queue Monitor Shutdown Wait',
'AQ Proxy Cleanup Wait',
'knlqdeq',
'class slave wait',
'master wait',
'DIAG idle wait',
'ASM background timer',
'KSV master wait',
'EMON idle wait',
'Streams AQ:RACqmn coordinator idle wait',
'Streams AQ: qmn coordinator idle wait',
'Streams AQ: qmn slave idle wait',
'Streams AQ: waiting for time management or cleanup tasks',
'Streams AQ: waiting for messages in the queue',
'Streams fetch slave: waiting for txns',
'Streams AQ:deallocate messages from Streams Pool',
'Streams AQ: delete acknowledged messages',
'LNS ASYNC archive log',
'LNS ASYNC dest activation',
'LNS ASYNC end of log',
'LogMiner: client waiting for transaction',
'LogMiner: slave waiting for activate message',
'LogMiner: wakeup event for builder',
'LogMiner: wakeup event for preparer',
'LogMiner: wakeup event for reader')) t1,
(select *
from (select t.event,
t.total_waits,
t.total_timeouts,
t.time_waited,
t.average_wait,
rownum num
from (select event,
total_waits,
total_timeouts,
time_waited,
average_wait
from v$system_event
where event not in
('smon timer',
'pmon timer',
'rdbms ipc message',
'Null event',
'parallel query dequeue',
'pipe get',
'client message',
'SQL*Net message to client',
'SQL*Net message from client',
'SQL*Net more data from client',
'dispatcher timer',
'virtual circuit status',
'lock manager wait for remote message',
'PX Idle Wait',
'PX Deq: Execution Msg',
'PX Deq: Table Q Normal',
'wakeup time manager',
'slave wait',
'i/o slave wait',
'jobq slave wait',
'null event',
'gcs remote message',
'gcs for action',
'ges remote message',
'queue messages',
'wait for unread message on broadcast channel',
'PX Deq Credit: send blkd',
'PX Deq: Execute Reply',
'PX Deq: Signal ACK',
'PX Deque wait',
'PX Deq Credit: need buffer',
'STREAMS apply coord waiting for slave message',
'STREAMS apply slave waiting for coord message',
'Queue Monitor Wait',
'Queue Monitor Slave Wait',
'wakeup event for builder',
'wakeup event for preparer',
'wakeup event for reader',
'wait for activate message',
'PX Deq: Par Recov Execute',
'PX Deq: Table Q Sample',
'STREAMS apply slave idle wait',
'STREAcapture process filter callback wait for ruleset',
'STREAMS fetch slave waiting for txns',
'STREAMS waiting for subscribers to catch up',
'Queue Monitor Shutdown Wait',
'AQ Proxy Cleanup Wait',
'knlqdeq',
'class slave wait',
'master wait',
'DIAG idle wait',
'ASM background timer',
'KSV master wait',
'EMON idle wait',
'Streams AQ: RAC qmn coordinator idle wait',
'Streams AQ: qmn coordinator idle wait',
'Streams AQ: qmn slave idle wait',
'Streams AQ: waiting for time management or cleanup tasks',
'Streams AQ: waiting for messages in the queue',
'Streams fetch slave: waiting for txns',
'Streams AQ:deallocate messages from Streams Pool',
'Streams AQ: delete acknowledged messages',
'LNS ASYNC archive log',
'LNS ASYNC dest activation',
'LNS ASYNC end of log',
'LogMiner: client waiting for transaction',
'LogMiner: slave waiting for activate message',
'LogMiner: wakeup event for builder',
'LogMiner: wakeup event for preparer',
'LogMiner: wakeup event for reader')
order by time_waited desc) t)
where event in ('enq: TX - row lock contention','row cache lock','Global transaction acquire instance locks','library cache lock','library cache load lock','DFS lock handle','buffer deadlock','lock escalate retry','ARCH wait for archivelog lock','enq: AE - lock','ADR file lock','enq: JS - job run lock - synchronize','enq: JS - job recov lock','enq: JS - queue lock'
)) t2,
(SELECT VALUE CPU
FROM v$sysstat
WHERE NAME LIKE 'CPU used by this session') t3;
创建一个表临时存数据
create table event_percent(event varchar2(30), event_wait_percent number, rq date);
insert into event_percent select t2.event,
round(100 * t2.time_waited / (t1.w1 + t3.cpu), 2) event_wait_percent,sysdate
from (SELECT SUM(time_waited) w1
FROM v$system_event
WHERE event NOT IN
('smon timer',
'pmon timer',
'rdbms ipc message',
'Null event',
'parallel query dequeue',
'pipe get',
'client message',
'SQL*Net message to client',
'SQL*Net message from client',
'SQL*Net more data from client',
'dispatcher timer',
'virtual circuit status',
'lock manager wait for remote message',
'PX Idle Wait',
'PX Deq: Execution Msg',
'PX Deq: Table Q Normal',
'wakeup time manager',
'slave wait',
'i/o slave wait',
'jobq slave wait',
'null event',
'gcs remote message',
'gcs for action',
'ges remote message',
'queue messages',
'wait for unread message on broadcast channel',
'PX Deq Credit: send blkd',
'PX Deq: Execute Reply',
'PX Deq: Signal ACK',
'PX Deque wait',
'PX Deq Credit: need buffer',
'STREAMS apply coord waiting for slave message',
'STREAMS apply slave waiting for coord message',
'Queue Monitor Wait',
'Queue Monitor Slave Wait',
'wakeup event for builder',
'wakeup event for preparer',
'wakeup event for reader',
'wait for activate message',
'PX Deq: Par Recov Execute',
'PX Deq: Table Q Sample',
'STREAMS apply slave idle wait',
'STREAcapture process filter callback wait for ruleset',
'STREAMS fetch slave waiting for txns',
'STREAMS waiting for subscribers to catch up',
'Queue Monitor Shutdown Wait',
'AQ Proxy Cleanup Wait',
'knlqdeq',
'class slave wait',
'master wait',
'DIAG idle wait',
'ASM background timer',
'KSV master wait',
'EMON idle wait',
'Streams AQ:RACqmn coordinator idle wait',
'Streams AQ: qmn coordinator idle wait',
'Streams AQ: qmn slave idle wait',
'Streams AQ: waiting for time management or cleanup tasks',
'Streams AQ: waiting for messages in the queue',
'Streams fetch slave: waiting for txns',
'Streams AQ:deallocate messages from Streams Pool',
'Streams AQ: delete acknowledged messages',
'LNS ASYNC archive log',
'LNS ASYNC dest activation',
'LNS ASYNC end of log',
'LogMiner: client waiting for transaction',
'LogMiner: slave waiting for activate message',
'LogMiner: wakeup event for builder',
'LogMiner: wakeup event for preparer',
'LogMiner: wakeup event for reader')) t1,
(select *
from (select t.event,
t.total_waits,
t.total_timeouts,
t.time_waited,
t.average_wait,
rownum num
from (select event,
total_waits,
total_timeouts,
time_waited,
average_wait
from v$system_event
where event not in
('smon timer',
'pmon timer',
'rdbms ipc message',
'Null event',
'parallel query dequeue',
'pipe get',
'client message',
'SQL*Net message to client',
'SQL*Net message from client',
'SQL*Net more data from client',
'dispatcher timer',
'virtual circuit status',
'lock manager wait for remote message',
'PX Idle Wait',
'PX Deq: Execution Msg',
'PX Deq: Table Q Normal',
'wakeup time manager',
'slave wait',
'i/o slave wait',
'jobq slave wait',
'null event',
'gcs remote message',
'gcs for action',
'ges remote message',
'queue messages',
'wait for unread message on broadcast channel',
'PX Deq Credit: send blkd',
'PX Deq: Execute Reply',
'PX Deq: Signal ACK',
'PX Deque wait',
'PX Deq Credit: need buffer',
'STREAMS apply coord waiting for slave message',
'STREAMS apply slave waiting for coord message',
'Queue Monitor Wait',
'Queue Monitor Slave Wait',
'wakeup event for builder',
'wakeup event for preparer',
'wakeup event for reader',
'wait for activate message',
'PX Deq: Par Recov Execute',
'PX Deq: Table Q Sample',
'STREAMS apply slave idle wait',
'STREAcapture process filter callback wait for ruleset',
'STREAMS fetch slave waiting for txns',
'STREAMS waiting for subscribers to catch up',
'Queue Monitor Shutdown Wait',
'AQ Proxy Cleanup Wait',
'knlqdeq',
'class slave wait',
'master wait',
'DIAG idle wait',
'ASM background timer',
'KSV master wait',
'EMON idle wait',
'Streams AQ: RAC qmn coordinator idle wait',
'Streams AQ: qmn coordinator idle wait',
'Streams AQ: qmn slave idle wait',
'Streams AQ: waiting for time management or cleanup tasks',
'Streams AQ: waiting for messages in the queue',
'Streams fetch slave: waiting for txns',
'Streams AQ:deallocate messages from Streams Pool',
'Streams AQ: delete acknowledged messages',
'LNS ASYNC archive log',
'LNS ASYNC dest activation',
'LNS ASYNC end of log',
'LogMiner: client waiting for transaction',
'LogMiner: slave waiting for activate message',
'LogMiner: wakeup event for builder',
'LogMiner: wakeup event for preparer',
'LogMiner: wakeup event for reader')
order by time_waited desc) t)
where event in ('enq: TX - row lock contention','row cache lock','Global transaction acquire instance locks','library cache lock','library cache load lock','DFS lock handle','buffer deadlock','lock escalate retry','ARCH wait for archivelog lock','enq: AE - lock','ADR file lock','enq: JS - job run lock - synchronize','enq: JS - job recov lock','enq: JS - queue lock'
) ) t2,
(SELECT VALUE CPU
FROM v$sysstat
WHERE NAME LIKE 'CPU used by this session') t3 where round(100 * t2.time_waited / (t1.w1 + t3.cpu), 2) > 0;