Know more about RAC statistics and wait event

以下列出了RAC中的主要统计信息和等待事件：

1. Statistics:

1.1 V$SYSSTAT, V$SESSTAT (join to V$STATNAME)

gc cr blocks served

gc cr block build time

gc cr block flush time

gc cr block send time

gc current blocks served

gc current block pin time

gc current block flush time

gc current block send time

gc cr blocks received

gc cr block receive time

gc current blocks received

gc current block receive time

gc blocks lost

gc claim blocks lost

gc blocks corrupt

global enqueue gets sync

global enqueue gets async

global enqueue get time

global enqueue releases

gcs messages sent

ges messages sent

global enqueue CPU used by this session

gc CPU used by this session

IPC CPU used by this session

global undo segment hints helped (10.2)

global undo segment hints were stale (10.2)

1.2 V$SYSMETRIC

GC CR Block Received Per Second

GC CR Block Received Per Txn

GC Current Block Received Per Second

GC Current Block Received Per Txn

Global Cache Average CR Get Time

Global Cache Average Current Get Time

Global Cache Blocks Corrupted

Global Cache Blocks Lost

1.3 V$SEGMENT_STATISTICS, V$SEGSTAT

gc buffer busy

gc cr blocks received

gc current blocks received

1.4 DBA_HIST_SEG_STAT

GC_CR_BLOCKS_SERVED_TOTAL

GC_CR_BLOCKS_SERVED_DELTA

GC_CU_BLOCKS_SERVED_TOTAL

GC_CU_BLOCKS_SERVED_DELTA

1.5 V$GES_STATISTICS

acks for commit broadcast(actual)

acks for commit broadcast(logical)

broadcast msgs on commit(actual)

broadcast msgs on commit(logical)

broadcast msgs on commit(wasted)

dynamically allocated gcs resources

dynamically allocated gcs shadows

false posts waiting for scn acks

flow control messages received

flow control messages sent

gcs assume cvt

gcs assume no cvt

gcs ast xid

gcs blocked converts

gcs blocked cr converts

gcs compatible basts

gcs compatible cr basts (global)

gcs compatible cr basts (local)

gcs cr basts to PIs

gcs cr serve without current lock

gcs dbwr flush pi msgs

gcs dbwr write request msgs

gcs error msgs

gcs forward cr to pinged instance

gcs immediate (compatible) converts

gcs immediate (null) converts

gcs immediate cr (compatible) converts

gcs immediate cr (null) converts

gcs indirect ast

gcs lms flush pi msgs

gcs lms write request msgs

gcs msgs process time(ms)

gcs msgs received

gcs out-of-order msgs

gcs pings refused

gcs queued converts

gcs recovery claim msgs

gcs refuse xid

gcs regular cr

gcs retry convert request

gcs side channel msgs actual

gcs side channel msgs logical

gcs undo cr

gcs write notification msgs

gcs writes refused

ges msgs process time(ms)

ges msgs received

global posts dropped

global posts queue time

global posts queued

global posts requested

global posts sent

implicit batch messages received

implicit batch messages sent

lmd msg send time(ms)

lms(s) msg send time(ms)

messages flow controlled

messages queue sent actual

messages queue sent logical

messages received actual

messages received logical

messages sent directly

messages sent indirectly

messages sent not implicit batched

messages sent pbatched

msgs causing lmd to send msgs

msgs causing lms(s) to send msgs

msgs received queue time (ms)

msgs received queued

msgs sent queue time (ms)

msgs sent queue time on ksxp (ms)

msgs sent queued

msgs sent queued on ksxp

process batch messages received

process batch messages sent

2. Wait Events:

在10g中RAC等待事件可以分为3类，下面列出了主要的等待事件包括一些undocumented wait event.

2.1. Real time only :

Those wait events are only defined while the process is waiting; after the wait is over, they are reclassified according to the outcome of the global cache operation. They should appear only on the following views: V$SESSION_WAIT, V$ACTIVE_SESSION_HISTORY, V$EVENT_HISTOGRAM.

gc cr request

gc current request

2.2. Historical only:

These are events represent the outcome of a GC request (fixup events). They can appear in the following views: V$SESSION_EVENT, V$SYSTEM_EVENT, DBA_HIST_SYSTEM_EVENT, V$EVENTMETRIC.

gc cr block 2-way

gc cr block 3-way

gc cr block busy

gc cr block congested

gc cr block lost

gc cr block unknown

gc cr grant 2-way

gc cr grant busy

gc cr grant congested

gc cr grant unknown

gc current block 2-way

gc current block 3-way

gc current block busy

gc current block congested

gc current block lost

gc current block unknown

gc current grant 2-way

gc current grant busy

gc current grant congested

gc current grant unknown

2.3. Other events:

The remaining wait events may appear in any of the views listed before, namely: V$SESSION_WAIT, V$ACTIVE_SESSION_HISTORY, V$EVENT_HISTOGRAM, V$SESSION_EVENT, V$SYSTEM_EVENT, DBA_HIST_SYSTEM_EVENT, V$EVENTMETRIC.

LMON global data update

cr request retry

gc assume

gc block recovery request

gc buffer busy

gc claim

gc cr cancel

gc cr disk read

gc cr disk request

gc cr failure

gc cr multi block request

gc current cancel

gc current multi block request

gc current retry

gc current split

gc domain validation

gc freelist

gc prepare

gc quiesce wait

gc recovery free

gc recovery quiesce

gc remaster

gcs ddet enter server mode

gcs domain validation

gcs drm freeze begin

gcs drm freeze in enter server mode

gcs enter server mode

gcs log flush sync

gcs remastering wait for read latch

gcs remastering wait for write latch

gcs remote message

gcs resource directory to be unfrozen

gcs to be enabled

ges LMD suspend for testing event

ges LMD to inherit communication channels

ges LMD to shutdown

ges LMON for send queues

ges LMON to get to FTDONE

ges LMON to join CGS group

ges cached resource cleanup

ges cancel

ges cgs registration

ges enter server mode

ges generic event

ges global resource directory to be frozen

ges inquiry response

ges lmd and pmon to attach

ges lmd/lmses to freeze in rcfg - mrcvr

ges lmd/lmses to unfreeze in rcfg - mrcvr

ges master to get established for SCN op

ges performance test completion

ges pmon to exit

ges process with outstanding i/o

ges reconfiguration to start

ges remote message

ges resource cleanout during enqueue open

ges resource cleanout during enqueue open-cvt

ges resource directory to be unfrozen

ges retry query node

ges reusing os pid

ges user error

ges wait for lmon to be ready

ges1 LMON to wake up LMD - mrcvr

ges2 LMON to wake up LMD - mrcvr

ges2 LMON to wake up lms - mrcvr 2

ges2 LMON to wake up lms - mrcvr 3

ges2 proc latch in rm latch get 1

ges2 proc latch in rm latch get 2

global cache busy

global enqueue expand wait

latch: KCL gc element parent latch

latch: gcs resource hash

latch: ges resource hash list

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