What is in V$LATCH. If its shared pool and library
cache contention I'd be tempted to:
- upgrade to 8.1.6+ where the algorithm is better
- reduce the size of your shared pool
hth
connor
- "Gupta, Brijesh" <Brijesh.Gupta_at_Airliquide.com>
wrote: > Hi all
> My database almost hangs and when I query the
> v$session_wait I found
> latch contention.
> we are running on Oracle 8.0.5 (64bit) Oracle
> application 10.7 SC.
> Shared pool is 1.9GB and SGA 9GB.
> I have to flush the shared_pool to get rid of the
> problem.
>
> Can any one help me in finding the permanent
> solution of this problem.
>
> Brijesh
>
> Wait Sec in
> EVENT time SID Wait
> STATE
> BLOCK
> ------------------------------ ------ -------
> ------- -------------------
> --------------------------
> latch free 0 40
> 1 WAITING
> address=pp92556056 number=60 tries=25
> latch free 0 43
> 0 WAITING
> address=9465536000 number=53 tries=1
> latch free -1 89
> 0 WAITED SHORT TIME
> address=pp92559080 number=60 tries=0
> latch free 0 47
> 0 WAITING
> address=pp92556056 number=60 tries=1
> latch free -1 190
> 0 WAITED SHORT TIME
> address=9465548816 number=59 tries=0
> latch free 0 281
> 1 WAITING
> address=pp92556488 number=60 tries=0
> latch free 1 317
> 2 WAITED KNOWN TIME
> address=9465548816 number=59 tries=0
> latch free -1 343
> 1 WAITED SHORT TIME
> address=9465548816 number=59 tries=0
> latch free 0 391
> 2 WAITING
> address=pp92556200 number=60 tries=25
> latch free 0 369
> 2 WAITING
> address=pp92555768 number=60 tries=26
> latch free 0 631
> 1 WAITING
> address=pp92556344 number=60 tries=0
> latch free -1 627
> 0 WAITED SHORT TIME
> address=pp92559080 number=60 tries=0
> latch free 0 600
> 0 WAITING
> address=pp92556344 number=60 tries=0
> latch free 1 577
> 1 WAITED KNOWN TIME
> address=pp92559224 number=60 tries=0
> latch free -1 465
> 1 WAITED SHORT TIME
> address=9465548816 number=59 tries=1
> latch free 0 448
> 0 WAITING
> address=pp92557208 number=60 tries=0
> latch free 0 414
> 0 WAITING
> address=pp92556920 number=60 tries=0
> latch free 0 409
> 2 WAITING
> address=pp92555912 number=60 tries=26
> latch free 0 950
> 0 WAITING
> address=pp92556632 number=60 tries=2
> latch free 0 949
> 0 WAITING
> address=pp92555768 number=60 tries=1
> latch free 0 930
> 0 WAITING
> address=pp92556776 number=60 tries=1
> latch free 0 915
> 0 WAITING
> address=pp92556920 number=60 tries=0
> latch free 0 901
> 0 WAITING
> address=pp92557064 number=60 tries=0
> latch free -1 889
> 0 WAITED SHORT TIME
> address=9465536000 number=53 tries=0
> latch free 0 858
> 0 WAITING
> address=pp92556344 number=60 tries=1
> latch free 1 832
> 1 WAITED KNOWN TIME
> address=pp92559224 number=60 tries=0
> latch free 0 827
> 0 WAITING
> address=pp92556200 number=60 tries=1
> latch free 0 826
> 0 WAITING
> address=pp92556344 number=60 tries=0
> latch free 0 820
> 0 WAITING
> address=pp92556776 number=60 tries=0
> latch free 0 805
> 0 WAITING
> address=pp92556344 number=60 tries=1
> latch free 0 757
> 0 WAITING
> address=pp92555768 number=60 tries=1
> latch free 0 718
> 1 WAITING
> address=pp92556632 number=60 tries=0
> latch free 0 697
> 0 WAITING
> address=pp92556056 number=60 tries=1
> latch free 0 666
> 0 WAITING
> address=pp92556200 number=60 tries=0
> latch free 0 1154
> 0 WAITING
> address=pp92555912 number=60 tries=1
> latch free 0 1138
> 0 WAITING
> address=pp92556200 number=60 tries=0
> latch free 0 1132
> 0 WAITING
> address=9465536000 number=53 tries=1
> latch free 0 1068
> 0 WAITING
> address=pp92556776 number=60 tries=2
> latch free 0 1058
> 0 WAITING
> address=9465536000 number=53 tries=1
> latch free 1 1037
> 0 WAITED KNOWN TIME
> address=pp92557064 number=60 tries=0
> latch free -1 963
> 0 WAITED SHORT TIME
> address=pp92556200 number=60 tries=1
> latch free 0 952
> 0 WAITING
> address=pp92556776 number=60 tries=1
> latch free 1 1425
> 0 WAITED KNOWN TIME
> address=pp92556200 number=60 tries=0
> latch free 0 1421
> 2 WAITING
> address=pp92555768 number=60 tries=29
> latch free 0 1412
> 0 WAITING
> address=pp92556344 number=60 tries=0
> latch free 0 1398
> 0 WAITING
> address=9465536000 number=53 tries=1
> latch free -1 1385
> 1 WAITED SHORT TIME
> address=9465548816 number=59 tries=0
> latch free 1 1357
> 0 WAITED KNOWN TIME
> address=9465536000 number=53 tries=1
> latch free 0 1338
> 2 WAITING
> address=pp92555912 number=60 tries=25
> latch free 0 1330
> 2 WAITING
> address=pp92556200 number=60 tries=19
> latch free 0 1301
> 0 WAITING
> address=pp92556200 number=60 tries=0
> latch free -1 1239
> 0 WAITED SHORT TIME
> address=9465548816 number=59 tries=1
> latch free 0 1188
> 2 WAITING
> address=pp92556200 number=60 tries=18
> latch free -1 1186
> 0 WAITED SHORT TIME
> address=9465548816 number=59 tries=0
> latch free -1 1498
> 1 WAITED SHORT TIME
> address=pp92557640 number=60 tries=0
> latch free 0 395
> 0 WAITING
> address=pp92556488 number=60 tries=0
> latch free 0 333
> 1 WAITING
> address=pp92556488 number=60 tries=0
> latch free -1 289
> 1 WAITED SHORT TIME
> address=9465548816 number=59 tries=0
> latch free 0 227
> 0 WAITING
> address=pp92556056 number=60 tries=0
> latch free 0 129
> 0 WAITING
>
=== message truncated ===
Connor McDonald
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Received on Mon Oct 01 2001 - 16:27:14 CDT
