My ugly statspack

Question

Hi there, if you have time - please have a look at my stats pack below and let me know any comments you have.
I have spotted the following,
There is a huge amount of rolling back. 72%!!!
I cant do anything about this as its the frontend application. I have brought this up with the vendor.
The Hard parsing is too high.
15% seems to be hard parses.
The Execute to Parse value is negative
SQL statements are being parsed but not executed.
The softparse value is way to low. It shoudl be as close to 100 as possible.
db file sequential read is very high/expensive. why would this be?
DB Name DB Id Instance Inst Num Release OPS Host
P04 1508017556 p04 1 8.1.7.2.0 NO his
Snap Id Snap Time Sessions
Begin Snap: 343 11-Feb-05 11:04:46 1,255
End Snap: 351 11-Feb-05 11:21:28 1,255
Elapsed: 16.70 (mins)
Cache Sizes
~~~~~~~~~~~
db_block_buffers: 4000 log_buffer: 163840
db_block_size: 4096 shared_pool_size: 105M
Load Profile
~~~~~~~~~~~~ Per Second Per Transaction
Redo size: 5,144.91 4,566.16
Logical reads: 26,851.31 23,830.84
Block changes: 36.34 32.25
Physical reads: 1,179.03 1,046.40
Physical writes: 40.40 35.86
User calls: 141.68 125.74
Parses: 89.38 79.33
Hard parses: 17.61 15.63
Sorts: 16.87 14.97
Logons: 1.24 1.10
Executes: 71.35 63.32
Transactions: 1.13
% Blocks changed per Read: 0.14 Recursive Call %: 68.80
Rollback per transaction %: 72.90 Rows per Sort: 45.03
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 100.00 Redo NoWait %: 100.00
Buffer Hit %: 95.61 In-memory Sort %: 99.53
Library Hit %: 92.06 Soft Parse %: 80.30
Execute to Parse %: -25.28 Latch Hit %: 99.95
Parse CPU to Parse Elapsd %: % Non-Parse CPU:
Shared Pool Statistics Begin End
Memory Usage %: 75.93 77.33
% SQL with executions>1: 75.74 74.74
% Memory for SQL w/exec>1: 50.11 54.41
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
db file sequential read 493,594 0 .00
db file scattered read 27,151 0 .00
latch free 13,607 0 .00
SQL*Net more data to client 10,357 0 .00
direct path read 7,635 0 .00
Wait Events for DB: P04 Instance: p04 Snaps: 343 -351
-> cs - centisecond - 100th of a second
-> ms - millisecond - 1000th of a second
-> ordered by wait time desc, waits desc (idle events last)
Avg
Total Wait wait Waits
Event Waits Timeouts Time (cs) (ms) /txn
db file sequential read 493,594 0 0 0 437.2
db file scattered read 27,151 0 0 0 24.0
latch free 13,607 8,938 0 0 12.1
SQL*Net more data to client 10,357 0 0 0 9.2
direct path read 7,635 0 0 0 6.8
file open 3,339 0 0 0 3.0
direct path write 1,397 0 0 0 1.2
log file parallel write 838 0 0 0 0.7
db file parallel write 651 0 0 0 0.6
log file sync 600 1 0 0 0.5
control file parallel write 324 0 0 0 0.3
control file sequential read 141 0 0 0 0.1
buffer busy waits 47 0 0 0 0.0
SQL*Net break/reset to clien 38 0 0 0 0.0
refresh controlfile command 14 0 0 0 0.0
enqueue 13 0 0 0 0.0
LGWR wait for redo copy 7 4 0 0 0.0
SQL*Net message to client 134,065 0 0 0 118.7
SQL*Net message from client 134,020 0 0 0 118.7
SQL*Net more data from clien 1,891 0 0 0 1.7
Background Wait Events for DB: P04 Instance: p04 Snaps: 343 -351
-> ordered by wait time desc, waits desc (idle events last)
Avg
Total Wait wait Waits
Event Waits Timeouts Time (cs) (ms) /txn
log file parallel write 837 0 0 0 0.7
db file parallel write 651 0 0 0 0.6
control file parallel write 324 0 0 0 0.3
db file scattered read 76 0 0 0 0.1
db file sequential read 49 0 0 0 0.0
control file sequential read 42 0 0 0 0.0
latch free 39 39 0 0 0.0
LGWR wait for redo copy 7 4 0 0 0.0
rdbms ipc message 5,154 953 0 0 4.6
pmon timer 399 308 0 0 0.4
smon timer 4 4 0 0 0.0
SQL ordered by Gets for DB: P04 Instance: p04 Snaps: 343 -351
-> End Buffer Gets Threshold: 10000
-> Note that resources reported for PL/SQL includes the resources used by
all SQL statements called within the PL/SQL code. As individual SQL
statements are also reported, it is possible and valid for the summed
total % to exceed 100
Buffer Gets Executions Gets per Exec % Total Hash Value
7,478,028 1 7,478,028.0 27.8 2174624692
SELECT distinct "RESOURCE_USAGE"."CRN", "RESOURCE
_USAGE"."DATE_MOVED_IN", "RESOURCE_USAGE"."AGRMNT_T
YPE_CODE", "HOMELESS_CASE"."CASE_STATUS",
"DECISION"."DATE_OF_DECISION", "DECISION"."DECI
SION_CODE", "PERSON"."TITLE", "PERSON"
777,467 1 777,467.0 2.9 2743905745
SELECT TRIGGER_TABLE.NUM1
, ltrim(rtrim(to_char(TRIGGER_TABLE
.NUM2, '99,990.00')))
, RNT_PATCH.ARREARS_OFF_NAME
, ltrim(rtr
im(initcap(PERSON.TITLE) || ' ' || initcap(PERSON.FORENAME) || '
' || initcap(PERSON.MIDDLE_INIT) || ' ' || initcap(PERSON.PERSO
N_SURNAME))) as person_name
,RNT_PATCH.ARREARS_OFF_NAME
,RNT_P
703,637 1 703,637.0 2.6 1491351501
select a.tablespace_name, a.bytes "total", (a.bytes - nvl
(b.free,0)) "used", nvl(b.free,0) "free", round(nv
l(b.free,0)/a.bytes*100) "%free" from (select sum(bytes) bytes,
tablespace_name from dba_data_files group by tablespace_name) a
, (select sum(bytes) free, tablespace_name from dba_free_space
575,166 1 575,166.0 2.1 3381284524
SELECT DISTINCT "BULL"."RNT_ACCOUNT"."ACCOUNT_NO",
"BULL"."RNT_PROPERTY"."A_B_WEEK", "BULL"."RNT_PRO
PERTY"."AREA_CODE", "BULL"."RNT_PROPERTY"."PATCH_CO
DE", "BULL"."PROPERTY"."PROP_SUB_NUM",
"BULL"."PROPERTY"."PROP_NAME", "BULL"."RNT_AREA"."
236,552 47 5,033.0 0.9 1785190534
SELECT count(*),max(wl_entry.total_points)
FROM shortlist_index
shortlist_type,
wl_entry,
wl_entry_status
WHERE shor
tlist_index.area=:sArea
AND shortlist_index.bedsize=:sSize
A
ND nvl(shortlist_index.dwelling_type_code,'X')=nvl(NULL,'X')
A
ND shortlist_type.shortlist=:sSLCode
AND shortlist_index.wl_co
116,045 1 116,045.0 0.4 2415945105
BEGIN STATSPACK.SNAP(i_snap_level=>5, i_modify_parameter=>'true'
); END;
110,614 1 110,614.0 0.4 625421128
INSERT INTO STATS$SQLTEXT ( HASH_VALUE,TEXT_SUBSET,PIECE,SQL_TEX
T,ADDRESS,COMMAND_TYPE,LAST_SNAP_ID ) SELECT ST1.HASH_VALUE,SS.
TEXT_SUBSET,ST1.PIECE,ST1.SQL_TEXT,ST1.ADDRESS,ST1.COMMAND_TYPE,
SS.SNAP_ID FROM V$SQLTEXT ST1,STATS$SQL_SUMMARY SS WHERE SS.S
NAP_ID = :b1 AND SS.DBID = :b2 AND SS.INSTANCE_NUMBER = :b3 A
73,900 1,221 60.5 0.3 3013728279
select privilege#,level from sysauth$ connect by grantee#=prior
privilege# and privilege#>0 start with (grantee#=:1 or grantee#=
1) and privilege#>0
SQL ordered by Gets for DB: P04 Instance: p04 Snaps: 343 -351
-> End Buffer Gets Threshold: 10000
-> Note that resources reported for PL/SQL includes the resources used by
all SQL statements called within the PL/SQL code. As individual SQL
statements are also reported, it is possible and valid for the summed
total % to exceed 100
Buffer Gets Executions Gets per Exec % Total Hash Value
69,636 3 23,212.0 0.3 3928236554
SELECT "REP_ADHOC_CONTRACTS"."CONTRACT_REFERENCE" ,
"REP_ADHOC_CONTRACTS"."CONTRACT_DESCRIPTION" , "REP_A
DHOC_CONTRACTS"."MSR_NUMBER" , "REP_ADHOC_CONTRACTS"."
MSR_VERSION" , "REP_ADHOC_CONTRACTS"."REPAIRS_AREA_COD
E" , "REP_ADHOC_CONTRACTS"."DEFAULT_PRIORITY_CODE" ,
53,446 144 371.2 0.2 1242614849
SELECT "USER_DETAILS"."USER_ID", "USER_DETAILS"."USER_NAME" FROM
"USER_DETAILS" ORDER BY "USER_DETAILS"."USER_ID"
40,560 25 1,622.4 0.2 3416838880
SELECT distinct(REP_NONADHOC_JOBS_VIEW.CONTRACT_REFERENCE),
REP_NONADHOC_JOBS_VIEW.CONTRACT_DESCRIPTION,
REP_NONADHOC_JOBS_VIEW.PRIORITY_CODE,
REP_NONA
DHOC_JOBS_VIEW.CONTRACT_STATUS,
REP_NONADHOC_JOBS_V
IEW.CONTRACT_STATUS_DATE,
REP_NONADHOC_JOBS_VIEW.PL
39,684 1 39,684.0 0.1 847511376
SELECT "LSC_CH_UNIT"."PARENT_HUN",
"LSC_CH_UNIT"."HUN",
"LSC_CH_UNIT"."UPRN" ,
"LSC_CH_UNIT"."HIERARCHY_UNIT_COD
E",
"LSC_CH_UNIT"."DATETIME_CREATED",
"LSC_CH_UNIT"."CREATED
_BY",
"LSC_CH_UNIT"."MGMT_UNIT_NAME" ,
substr(DECODE(p.PRO
P_SUB_NUM,NULL, '', p.PROP_SUB_NUM || ', ') ||
DECODE(p.
39,577 1 39,577.0 0.1 2389167611
SELECT "LSC_CH_UNIT"."PARENT_HUN",
"LSC_CH_UNIT"."HUN",
"LSC_CH_UNIT"."UPRN" ,
"LSC_CH_UNIT"."HIERARCHY_UNIT_COD
E",
"LSC_CH_UNIT"."DATETIME_CREATED",
"LSC_CH_UNIT"."CREATED
_BY",
"LSC_CH_UNIT"."MGMT_UNIT_NAME" ,
substr(DECODE(p.PRO
P_SUB_NUM,NULL, '', p.PROP_SUB_NUM || ', ') ||
DECODE(p.
37,699 3 12,566.3 0.1 3061673399
SELECT distinct(REP_NONADHOC_JOBS_VIEW.CONTRACT_REFERENCE),
REP_NONADHOC_JOBS_VIEW.CONTRACT_DESCRIPTION,
REP_NONADHOC_JOBS_VIEW.PRIORITY_CODE,
REP_NONA
DHOC_JOBS_VIEW.CONTRACT_STATUS,
REP_NONADHOC_JOBS_V
IEW.CONTRACT_STATUS_DATE,
REP_NONADHOC_JOBS_VIEW.PL
34,680 2 17,340.0 0.1 3015476189
SELECT distinct(REP_NONADHOC_JOBS_VIEW.CONTRACT_REFERENCE),
REP_NONADHOC_JOBS_VIEW.CONTRACT_DESCRIPTION,
SQL ordered by Reads for DB: P04 Instance: p04 Snaps: 343 -351
-> End Disk Reads Threshold: 1000
Physical Reads Executions Reads per Exec % Total Hash Value
145,750 1 145,750.0 12.3 2174624692
SELECT distinct "RESOURCE_USAGE"."CRN", "RESOURCE
_USAGE"."DATE_MOVED_IN", "RESOURCE_USAGE"."AGRMNT_T
YPE_CODE", "HOMELESS_CASE"."CASE_STATUS",
"DECISION"."DATE_OF_DECISION", "DECISION"."DECI
SION_CODE", "PERSON"."TITLE", "PERSON"
22,181 1 22,181.0 1.9 3758504226
select p1.pin , p1.title , initcap(p1.forename) , p1.middle_ini
t , initcap(p1.person_surname) , p1.date_of_birth ,' ' address ,
p1.disabled from person p1 where not exists ( select 1 fro
m rnt_occupants o where o.pin = p1.pin ) AND P1.PERSON_SURNAME
LIKE '%%' AND TO_CHAR(P1.DATE_OF_BIRTH,'dd/mm/yyyy') = '22/02/
21,591 1 21,591.0 1.8 134893840
select 0 as logid ,'ohms_full_lsc_account' as thetable, count(*
) as sourcecount from lsc_account
21,586 1 21,586.0 1.8 1271590434
select 0 as logid ,'ohms_full_lsc_account' as thetable, count(*
) as sourcecount from lsc_account charge_group_est
17,514 47 372.6 1.5 1785190534
SELECT count(*),max(wl_entry.total_points)
FROM shortlist_index
shortlist_type,
wl_entry,
wl_entry_status
WHERE shor
tlist_index.area=:sArea
AND shortlist_index.bedsize=:sSize
A
ND nvl(shortlist_index.dwelling_type_code,'X')=nvl(NULL,'X')
A
ND shortlist_type.shortlist=:sSLCode
AND shortlist_index.wl_co
13,470 1 13,470.0 1.1 2415945105
BEGIN STATSPACK.SNAP(i_snap_level=>5, i_modify_parameter=>'true'
); END;
10,259 1 10,259.0 0.9 3381284524
SELECT DISTINCT "BULL"."RNT_ACCOUNT"."ACCOUNT_NO",
"BULL"."RNT_PROPERTY"."A_B_WEEK", "BULL"."RNT_PRO
PERTY"."AREA_CODE", "BULL"."RNT_PROPERTY"."PATCH_CO
DE", "BULL"."PROPERTY"."PROP_SUB_NUM",
"BULL"."PROPERTY"."PROP_NAME", "BULL"."RNT_AREA"."
10,145 1 10,145.0 0.9 1078526263
select * from "BULL"."LSC_CH_UNIT_INHERIT" where datetime_creat
ed > (sysdate - 32)
9,406 1 9,406.0 0.8 734206759
select 0 as logid ,'ohms_inc_lsc_ch_unit_inherit' as thetable,
count(*) as sourcecount from lsc_ch_unit_inherit
9,404 105 89.6 0.8 3201672093
SELECT count ( *) FROM RNT_PROPERTY
7,053 1 7,053.0 0.6 3337740287
INSERT INTO STATS$SQL_STATISTICS ( SNAP_ID,DBID,INSTANCE_NUMBER,
TOTAL_SQL,TOTAL_SQL_MEM,SINGLE_USE_SQL,SINGLE_USE_SQL_MEM ) SEL
ECT :b1,:b2,:b3,COUNT(1),SUM(SHARABLE_MEM),SUM(DECODE(EXECUTIONS
SQL ordered by Reads for DB: P04 Instance: p04 Snaps: 343 -351
-> End Disk Reads Threshold: 1000
Physical Reads Executions Reads per Exec % Total Hash Value
,1,1,0)),SUM(DECODE(EXECUTIONS,1,SHARABLE_MEM,0)) FROM V$SQLXS
5,410 1 5,410.0 0.5 3436085714
SELECT "PROPERTY"."UPRN",
decode ( "PROPERTY"."P
ROP_SUB_NUM" ,
null ,'', "PROPERTY"."PROP_SUB_NUM" || ',' ) ||
decode ( prop_name , null , '', prop_name || ',') ||
decode
( prop_num , null , '', prop_num || ',') ||
decode ( property.
street_name , null , '', property.street_name || ',') ||
decod
5,253 1 5,253.0 0.4 3874720143
INSERT INTO STATS$SQL_SUMMARY ( SNAP_ID,DBID,INSTANCE_NUMBER,TEX
T_SUBSET,SHARABLE_MEM,SORTS,MODULE,LOADED_VERSIONS,EXECUTIONS,LO
ADS,INVALIDATIONS,PARSE_CALLS,DISK_READS,BUFFER_GETS,ROWS_PROCES
SED,ADDRESS,HASH_VALUE,VERSION_COUNT ) SELECT :b1,:b2,:b3,SUBST
R(SQL_TEXT,1,31),SHARABLE_MEM,SORTS,MODULE,LOADED_VERSIONS,EXECU
4,915 1 4,915.0 0.4 1152921379
SELECT "LSC_CH_UNIT"."UPRN",
Replace( Replace( RT
RIM( LTRIM( ( NVL ("PROPERTY"."PROP_SUB_NUM" ,
'') || ', '
|| NVL ("PROPERTY"."PROP_NAME" , '') || ', ' ||
NVL ( "PROP
ERTY"."PROP_NUM" , '') || ', ' ||
NVL ("PROPERTY"."STREET_N
AME" , '') || ', ' ||
NVL ("PROPERTY"."ADDR_LINE2" , '') ||
4,915 1 4,915.0 0.4 4174133807
SELECT "PROPERTY"."UPRN",
decode ( "PROPERTY"."P
ROP_SUB_NUM" ,
null ,'', "PROPERTY"."PROP_SUB_NUM" || ',' ) ||
decode ( prop_name , null , '', prop_name || ',') ||
decode
( prop_num , null , '', prop_num || ',') ||
decode ( property.
street_name , null , '', property.street_name || ',') ||
decod
4,913 1 4,913.0 0.4 3449421355
SELECT "LSC_CH_UNIT"."UPRN",
Replace( Replace( RT
RIM( LTRIM( ( NVL ("PROPERTY"."PROP_SUB_NUM" ,
'') || ', '
|| NVL ("PROPERTY"."PROP_NAME" , '') || ', ' ||
NVL ( "PROP
ERTY"."PROP_NUM" , '') || ', ' ||
NVL ("PROPERTY"."STREET_N
AME" , '') || ', ' ||
NVL ("PROPERTY"."ADDR_LINE2" , '') ||
4,883 1 4,883.0 0.4 2265599884
SELECT "LSC_CH_UNIT"."UPRN",
Replace( Replace( RT
RIM( LTRIM( ( NVL ("PROPERTY"."PROP_SUB_NUM" ,
'') || ', '
|| NVL ("PROPERTY"."PROP_NAME" , '') || ', ' ||
NVL ( "PROP
SQL ordered by Executions for DB: P04 Instance: p04 Snaps: 343 -351
-> End Executions Threshold: 100
Executions Rows Processed Rows per Exec Hash Value
4,214 441 0.1 955191413
select obj#,type#,ctime,mtime,stime,status,dataobj#,flags,oid$,
spare1 from obj$ where owner#=:1 and name=:2 and namespace=:3 an
d(remoteowner=:4 or remoteowner is null and :4 is null)and(linkn
ame=:5 or linkname is null and :5 is null)and(subname=:6 or subn
ame is null and :6 is null)
4,032 4,032 1.0 2091761008
select condition from cdef$ where rowid=:1
2,728 2,974 1.1 2085632044
select intcol#,nvl(pos#,0),col# from ccol$ where con#=:1
1,351 1,007 0.7 2024737912
SELECT TI_ACCOUNT_NO FROM RNT_TI_ACCOUNT WHERE ACCOUNT_NO = :
b1
1,328 1,639 1.2 117117207
SELECT P.TITLE || ' ' || P.FORENAME || ' ' || RTRIM(P.PERSON_
SURNAME) FULL_NAME FROM PERSON P,RNT_OCCUPANTS O WHERE O.UPR
N = :b1 AND O.PIN = P.PIN AND O.PARTY = 'Y' AND O.END_DATE_OF
_OCCUPANCY IS NULL ORDER BY DECODE(UPPER(P.TITLE),'MR',1,2)
1,221 19,964 16.4 3013728279
select privilege#,level from sysauth$ connect by grantee#=prior
privilege# and privilege#>0 start with (grantee#=:1 or grantee#=
1) and privilege#>0
1,193 881 0.7 1121470926
SELECT * FROM SYS.SESSION_ROLES WHERE ROLE = 'DBA'
1,146 0 0.0 4032977774
ALTER SESSION SET NLS_LANGUAGE= 'ENGLISH' NLS_TERRITORY= 'UNITED
KINGDOM' NLS_CURRENCY= '£' NLS_ISO_CURRENCY= 'UNITED KINGDOM' N
LS_NUMERIC_CHARACTERS= '.,' NLS_CALENDAR= 'GREGORIAN' NLS_DATE_F
ORMAT= 'DD-MON-RR' NLS_DATE_LANGUAGE= 'ENGLISH' NLS_SORT= 'BINA
RY' TIME_ZONE= '+00:00' NLS_DUAL_CURRENCY = '¿' NLS_TIME_FORMAT
993 993 1.0 1645188330
SELECT SYSDATE FROM DUAL
987 987 1.0 214061835
SELECT NVL(SUM(B.TOTAL_INDEBTEDNESS),0) FROM RNT_TI_ACCOUNT A,
RNT_ACCOUNT_TOTALS B WHERE A.TI_ACCOUNT_NO = :b1 AND A.ACCOUNT
NO = B.ACCOUNTNO
720 720 1.0 1966425544
select text from view$ where rowid=:1
600 598 1.0 4059714361
select type#,blocks,extents,minexts,maxexts,extsize,extpct,user#
,iniexts,NVL(lists,65535),NVL(groups,65535),cachehint,hwmincr, N
VL(spare1,0) from seg$ where ts#=:1 and file#=:2 and block#=:3
554 5,356 9.7 395844583
SQL ordered by Executions for DB: P04 Instance: p04 Snaps: 343 -351
-> End Executions Threshold: 100
Executions Rows Processed Rows per Exec Hash Value
select name,intcol#,segcol#,type#,length,nvl(precision#,0),decod
e(type#,2,nvl(scale,-127/*MAXSB1MINAL*/),178,scale,179,scale,180
,scale,181,scale,182,scale,183,scale,231,scale,0),null$,fixedsto
rage,nvl(deflength,0),default$,rowid,col#,property, charsetid,ch
arsetform,spare1,spare2 from col$ where obj#=:1 order by intcol#
544 1,138 2.1 4195740643
select pos#,intcol#,col#,spare1 from icol$ where obj#=:1
535 0 0.0 935016769
ALTER SESSION SET NLS_DATE_FORMAT="DD-MON-RR"
495 545 1.1 199702406
select i.obj#,i.ts#,i.file#,i.block#,i.intcols,i.type#,i.flags,
i.property,i.pctfree$,i.initrans,i.maxtrans,i.blevel,i.leafcnt,i
.distkey, i.lblkkey,i.dblkkey,i.clufac,i.cols,i.analyzetime,i.sa
mplesize,i.dataobj#, nvl(i.degree,1),nvl(i.instances,1),i.rowcnt
,mod(i.pctthres$,256),i.indmethod#,i.trunccnt,nvl(c.unicols,0),n
491 2,728 5.6 1536916657
select con#,type#,condlength,intcols,robj#,rcon#,match#,refact,n
vl(enabled,0),rowid,cols,nvl(defer,0),mtime,nvl(spare1,0) from c
def$ where obj#=:1
461 459 1.0 189272129
select o.owner#,o.name,o.namespace,o.remoteowner,o.linkname,o.su
bname,o.dataobj#,o.flags from obj$ o where o.obj#=:1
448 97 0.2 114078687
select con#,obj#,rcon#,enabled,nvl(defer,0) from cdef$ where rob
j#=:1
442 0 0.0 4114899968
SELECT "OHMS_BROADCAST_UMSG"."MESSAGE_ID",
"OHMS_BROADCAST
_UMSG"."MESSAGE_DATE",
"OHMS_BROADCAST_UMSG"."BROAD
CAST_UNTIL",
"OHMS_BROADCAST_UMSG"."RECIPIENT",
"OHMS_BROADCAST_UMSG"."SENDER",
"OHMS_BRO
ADCAST_UMSG"."BROADCASTED",
"OHMS_BROADCAST_MSG"."M
419 3,113 7.4 1004464078
select grantee#,privilege#,nvl(col#,0),max(nvl(option$,0)) from
objauth$ where obj#=:1 group by grantee#,privilege#,nvl(col#,0)
order by grantee#
406 0 0.0 4261939565
select col#, grantee#, privilege#,max(nvl(option$,0)) from objau
th$ where obj#=:1 and col# is not null group by privilege#, col#
, grantee# order by col#, grantee#
395 -431 -1.1 3873590224
INSERT INTO "SHORTLIST_INDEX" ( "AREA", "BEDSIZE", "WLRN", "WL_C
ODE", "DWELLING_TYPE_CODE", "ELIG_TYPE", "SPECIAL_ELIG" ) VALUES
( :1, :2, :3, :4, :5, :6, :7 )
365 365 1.0 2055820954
SQL ordered by Executions for DB: P04 Instance: p04 Snaps: 343 -351
-> End Executions Threshold: 100
Executions Rows Processed Rows per Exec Hash Value
select nvl ( trim ( view_secure_person_notes ) , 'N' ) from ohms
Instance Activity Stats for DB: P04 Instance: p04 Snaps: 343 -351
Statistic Total per Second per Trans
CR blocks created 1,272 1.3 1.1
DBWR buffers scanned 451,257 450.4 399.7
DBWR checkpoint buffers written 0 0.0 0.0
DBWR checkpoints 0 0.0 0.0
DBWR free buffers found 440,530 439.7 390.2
DBWR lru scans 751 0.8 0.7
DBWR make free requests 751 0.8 0.7
DBWR summed scan depth 451,257 450.4 399.7
DBWR transaction table writes 4 0.0 0.0
DBWR undo block writes 1,069 1.1 1.0
SQL*Net roundtrips to/from client 130,711 130.5 115.8
background checkpoints completed 0 0.0 0.0
background checkpoints started 0 0.0 0.0
background timeouts 989 1.0 0.9
branch node splits 0 0.0 0.0
buffer is not pinned count 17,880,509 17,844.8 15,837.5
buffer is pinned count 1,826,236 1,822.6 1,617.6
bytes received via SQL*Net from c 39,833,802 39,754.3 35,282.4
bytes sent via SQL*Net to client 44,535,273 44,446.4 39,446.7
calls to get snapshot scn: kcmgss 75,996 75.8 67.3
calls to kcmgas 687 0.7 0.6
calls to kcmgcs 208 0.2 0.2
cleanouts only - consistent read 2,659 2.7 2.4
cluster key scan block gets 2,820,733 2,815.1 2,498.4
cluster key scans 8,889 8.9 7.9
commit cleanout failures: block l 778 0.8 0.7
commit cleanout failures: buffer 11 0.0 0.0
commit cleanout failures: cannot 0 0.0 0.0
commit cleanouts 2,992 3.0 2.7
commit cleanouts successfully com 2,203 2.2 2.0
consistent changes 3,219 3.2 2.9
consistent gets 26,838,637 26,785.1 23,772.0
current blocks converted for CR
cursor authentications 15,764 15.7 14.0
data blocks consistent reads - un 3,159 3.2 2.8
db block changes 36,412 36.3 32.3
db block gets 66,383 66.3 58.8
deferred (CURRENT) block cleanout 875 0.9 0.8
dirty buffers inspected 929 0.9 0.8
enqueue conversions 304 0.3 0.3
enqueue releases 4,752 4.7 4.2
enqueue requests 4,775 4.8 4.2
enqueue timeouts 10 0.0 0.0
execute count 71,489 71.4 63.3
free buffer inspected 7,785 7.8 6.9
free buffer requested 1,155,014 1,152.7 1,023.0
hot buffers moved to head of LRU 70,348 70.2 62.3
immediate (CR) block cleanout app 2,659 2.7 2.4
immediate (CURRENT) block cleanou 750 0.8 0.7
index fast full scans (full) 4 0.0 0.0
leaf node splits 68 0.1 0.1
logons cumulative 1,238 1.2 1.1
logons current
messages received 4,774 4.8 4.2
messages sent 4,774 4.8 4.2
no buffer to keep pinned count 8,586,056 8,568.9 7,605.0
Instance Activity Stats for DB: P04 Instance: p04 Snaps: 343 -351
Statistic Total per Second per Trans
no work - consistent read gets 10,061,376 10,041.3 8,911.8
opened cursors cumulative 30,036 30.0 26.6
opened cursors current
parse count (hard) 17,644 17.6 15.6
parse count (total) 89,558 89.4 79.3
physical reads 1,181,389 1,179.0 1,046.4
physical reads direct 28,870 28.8 25.6
physical writes 40,482 40.4 35.9
physical writes direct 29,077 29.0 25.8
physical writes non checkpoint 40,415 40.3 35.8
pinned buffers inspected 243 0.2 0.2
prefetched blocks 629,572 628.3 557.6
prefetched blocks aged out before 108 0.1 0.1
recursive calls 313,097 312.5 277.3
redo blocks written 10,833 10.8 9.6
redo buffer allocation retries 0 0.0 0.0
redo entries 19,913 19.9 17.6
redo log space requests 0 0.0 0.0
redo size 5,155,196 5,144.9 4,566.2
redo synch writes 565 0.6 0.5
redo wastage 216,232 215.8 191.5
redo writes 836 0.8 0.7
rollback changes - undo records a 2,827 2.8 2.5
rows fetched via callback 2,749,955 2,744.5 2,435.7
session logical reads 26,905,014 26,851.3 23,830.8
session pga memory 124,228,384 123,980.4 110,034.0
session pga memory max 124,700,400 124,451.5 110,452.1
session uga memory 8,609,408 8,592.2 7,625.7
session uga memory max 41,183,948 41,101.7 36,478.3
sorts (disk) 79 0.1 0.1
sorts (memory) 16,821 16.8 14.9
sorts (rows) 761,067 759.6 674.1
summed dirty queue length 949 1.0 0.8
switch current to new buffer
table fetch by rowid 6,249,832 6,237.4 5,535.7
table fetch continued row 81,864 81.7 72.5
table scan blocks gotten 1,247,154 1,244.7 1,104.7
table scan rows gotten 27,251,960 27,197.6 24,138.1
table scans (long tables) 3,660 3.7 3.2
table scans (short tables) 4,719 4.7 4.2
total file opens 3,353 3.4 3.0
transaction rollbacks 175 0.2 0.2
transaction tables consistent rea 7 0.0 0.0
transaction tables consistent rea 59 0.1 0.1
user calls 141,961 141.7 125.7
user commits 306 0.3 0.3
user rollbacks 823 0.8 0.7
write clones created in foregroun 15 0.0 0.0
Tablespace IO Stats for DB: P04 Instance: p04 Snaps: 343 -351
->ordered by IOs (Reads + Writes) desc

Answer 1

Mark:
I second John's comments about the execute to parse ratio, almost certainly another thing you want to bring up with the vendor.
A couple of other things I noticed. Your buffer cache seems to be only 16Mb, a larger buffer may help. If you are really tight for memory, you could probably trim some from the SGA which is large in relation to the buffer cache.
Most of your expensive sql (by buffer gets and physical reads) seems to only be executed one time over the snapshot period. Which might indicate that the period is atypical. If these statements are coming from the application, and not from reports running, I would look at the use of bind variables in the application. The high hard parse numbers also tend to indicate that there is a lot of unique sql generated in the database. Depending on the nature of the application, and the activity over the reporting period, this may be valid, but I would really look at the use of bind variables.
The most used sql (number of executions) seems to be primarily recursive sql (issued by Oracle on your behalf). A lot of that sql seems to be looking at the data dictionary tables that define the objects in the database, that is, the type of sql I would expect to see for hard parses, or if someone is using the DESCRIBE method of whatever database interface the application is using a lot.
Without the timing information, it is impossible to say how long the waits for db_sequential_read are, but sequential reads, despite the name, are actually caused by single block reads associated with index scan/table access by rowid. The scattered reads, which also seem a little high, are the result of full table scans.
Before running your next set of snapshots, as a dba user do:
ALTER SYSTEM SET timed_statistics = TRUE;and set timed_statistics = TRUE in your init.ora file as well.
John