tom的RUNSTATS测试工具

-- 创建 runstats 包。其中包括 3 个简单 API 调用：

create or replace package runstats_pkg

as

   procedure rs_start;

   procedure rs_middle;

   procedure rs_stop(p_difference_threshold in number default 0);

end;

/

create or replace package body runstats_pkg

as

-- 这些全局变量用于纪录每次运行的耗用时间：

  g_start number;

  g_run1 number;

  g_run2 number;



  procedure rs_start

  is

  begin

        delete from run_stats;

        insert into run_stats

        select 'before', stats.* from stats;

        g_start := dbms_utility.get_time;

  end;

 

procedure rs_middle

  is

  begin

        g_run1 := (dbms_utility.get_time - g_start);

        insert into run_stats

        select 'after 1',stats.* from stats;

        g_start := dbms_utility.get_time;

  end;

 

procedure rs_stop(p_difference_threshold in number default 0)

  is

  begin

      g_run2 := (dbms_utility.get_time - g_start);

      dbms_output.put_line('Run1 ran in'||g_run1||'hsecs');

      dbms_output.put_line('Run2 ran in'||g_run2||'hsecs');

      dbms_output.put_line('run 1 ran in '||round(g_run1/g_run2*100,2)||'%of the time');

      dbms_output.put_line(chr(9));

      

      insert into run_stats

      select 'after 2', stats.* from stats;

      dbms_output.put_line( rpad('Name',30)|| lpad('Run1',10)||

                            lpad('Run2',10)|| lpad('Diff',10));

      for x in

      (

          select rpad(a.name,30)||

                 to_char(b.value - a.value,'9,999,999')||

                 to_char(c.value - b.value,'9,999,999')||

                 to_char(((c.value - b.value)-(b.value - a.value)),'9,999,999') data

          from run_stats a, run_stats b, run_stats c

          where a.name = b.name

          and b.name = c.name

          and a.runid = 'before'

          and b.runid = 'after 1'

          and c.runid = 'after 2'

          and (c.value - a.value) > 0

          and abs((c.value - b.value) - (b.value - a.value)) > p_difference_threshold

          order by abs((c.value - b.value)-(b.value - a.value))

      ) loop

        dbms_output.put_line(x.data);

      end loop;

      

      dbms_output.put_line(chr(9));

      dbms_output.put_line('Run1 latches total versus runs -- difference and pct ');

      dbms_output.put_line( lpad('Run1',10) || lpad('Run2',10) ||

                            lpad('Diff',10) || lpad('Pct',8));

      for x in

      (

          select to_char(run1, '9,999,999')||

                 to_char(run2, '9,999,999')||

                 to_char(diff, '9,999,999')||

                 to_char(round(run1/run2*100,2), '999.99')||'%' data

          from (

               select sum(b.value - a.value) run1,

                      sum(c.value - b.value) run2,

                      sum((c.value - b.value) - (b.value - c.value)) diff

               from run_stats a, run_stats b, run_stats c

               where a.name = b.name

               and b.name = c.name

               and a.runid = 'before'

               and b.runid = 'after 1'

and c.runid = ‘after 2’

               and a.name like 'latch%'

          )

      )loop

           dbms_output.put_line(x.data);

      end loop;           

  end;

end;

/

---

 

create or replace view stats

as

select 'STAT...'||a.NAME AS name, b.VALUE as value

from v$statname a, v$mystat b

where a.STATISTIC# = b.STATISTIC#

union all

select 'latch'||name as name, gets as value

from v$latch;

---

创建一张存储这些统计信息的小表：

create global temporary table run_stats

(

       runid varchar2(15),

       name varchar2(80),

       value int

) on commit preserve rows;

---

使用测试：

set serveroutput on size 1000000;

exec runstats_pkg.rs_start;

exec pkg_mv_test.PR_MV_ENTRANCE;

 exec runstats_pkg.rs_middle;

exec pkg_mv_test.PR_MV_ENTRANCE;

exec  runstats_pkg.rs_stop(100000);

---

==========================================

Connected to Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 

Connected as zhangxsh

 

SQL> set serveroutput on size 1000000;

SQL> exec runstats_pkg.rs_start;

 

PL/SQL procedure successfully completed

 

SQL> exec pkg_mv_test.PR_MV_ENTRANCE;

 

PL/SQL procedure successfully completed

 

SQL>  exec runstats_pkg.rs_middle;

 

PL/SQL procedure successfully completed

 

SQL> exec pkg_mv_test.PR_MV_ENTRANCE;

SQL> exec pkg_mv_test.PR_MV_ENTRANCE;

 

PL/SQL procedure successfully completed

 

SQL> exec  runstats_pkg.rs_stop;

 

Run1 ran in5848hsecs

Run2 ran in3687hsecs

run 1 ran in 158.61%of the time

    

Name                                Run1      Run2      Diff

STAT...cleanouts only - consis       175       176         1

STAT...transaction rollbacks           3         2        -1

STAT...immediate (CR) block cl       175       176         1

STAT...commit txn count during       368       369         1

STAT...commit batch/immediate          3         2        -1

STAT...commit immediate reques         3         2        -1

STAT...commit batch/immediate          3         2        -1

STAT...commit immediate perfor         3         2        -1

STAT...parse time cpu                  6         5        -1

latchksuosstats global area            4         3        -1

latchobject stats modification         4         5         1

latchsort extent pool                  7         8         1

latchktm global data                  11        12         1

latchparameter list                    0         1         1

latchJS mem alloc latch                1         0        -1

latchJS queue access latch             1         0        -1

STAT...redo synch writes          55,975    55,973        -2

STAT...session cursor cache co         2         0        -2

STAT...bytes sent via SQL*Net      2,120     2,118        -2

STAT...bytes received via SQL*     2,452     2,450        -2

latchobject queue header heap          7         9         2

latchcommit callback allocatio         0         2         2

latchjob_queue_processes param         3         1        -2

latchthreshold alerts latch            2         0        -2

STAT...immediate (CURRENT) blo    56,183    56,180        -3

STAT...parse time elapsed              8         5        -3

latchparameter table allocatio         5         2        -3

latchbuffer pool                       3         0        -3

latchtransaction allocation           13        10        -3

latchhash table modification l         3         0        -3

STAT...user commits              111,948   111,944        -4

STAT...redo buffer allocation         15        11        -4

latchFOB s.o list latch                9         5        -4

latchFIB s.o chain latch               4         0        -4

latchparallel query alloc buff         8         4        -4

STAT...redo log space requests        16        11        -5

STAT...workarea executions - o         9        14         5

STAT...parse count (hard)             38        33        -5

latchmessage pool operations p        10        15         5

latchJS slv state obj latch            5         0        -5

STAT...user I/O wait time              9         3        -6

STAT...sorts (memory)                  3         9         6

latchOS process                        0         6         6

latchsession timer                    22        16        -6

STAT...data blocks consistent      1,045     1,038        -7

STAT...rollbacks only - consis     1,045     1,038        -7

STAT...rows fetched via callba        40        32        -8

STAT...cursor authentications         33        25        -8

latchKMG MMAN ready and startu        20        12        -8

STAT...physical read total IO         27        18        -9

STAT...physical reads                 27        18        -9

STAT...physical reads cache           27        18        -9

STAT...physical read IO reques        27        18        -9

STAT...write clones created in        82        72       -10

STAT...consistent changes          1,081     1,070       -11

STAT...application wait time           1        13        12

STAT...table fetch continued r        23        11       -12

latchresmgr group change latch         8        22        14

STAT...sorts (rows)                3,538     3,553        15

latchOS process allocation            20        35        15

latchpost/wait queue                  57        40       -17

STAT...cluster key scans             182       163       -19

latchdummy allocation                  4        23        19

latchresmgr:actses change grou         2        21        19

latchresmgr:actses active list         4        23        19

latchresmgr:free threads list          4        23        19

latchMemory Management Latch          20         0       -20

latchevent group latch                 0        21        21

latchglobal KZLD latch for mem         0        21        21

STAT...opened cursors current         20        -2       -22

STAT...CR blocks created           1,126     1,104       -22

latchprocess allocation                0        23        23

latchprocess group creation            0        23        23

latchOS process: request alloc         0        23        23

latchloader state object freel        48        24       -24

STAT...table scans (short tabl       104        79       -25

latchchannel handle pool latch         3        28        25

latchactive checkpoint queue l       500       527        27

STAT...shared hash latch upgra       261       233       -28

STAT...index scans kdiixs1            85        57       -28

STAT...workarea memory allocat        -3        26        29

latchactive service list             148       177        29

STAT...redo synch time                 2        33        31

STAT...index fetch by key        172,087   172,056       -31

latchsession state list latch          8        41        33

latchfile cache latch                134       169        35

latchlibrary cache pin allocat        50        89        39

STAT...cluster key scan block        383       343       -40

latchcompile environment latch        41        83        42

latchuser lock                         8        54        46

latchlibrary cache lock alloca        61       107        46

latchPL/SQL warning settings          25        77        52

latchkks stats                        50       107        57

latchlibrary cache load lock          64       122        58

latchsequence cache                    3        68        65

latchclient/application info          34       110        76

STAT...opened cursors cumulati       371       280       -91

STAT...session cursor cache hi       353       244      -109

STAT...parse count (total)           415       296      -119

latchchannel operations parent       534       656       122

STAT...redo log space wait tim       475       346      -129

STAT...change write time             277       146      -131

STAT...table fetch by rowid        4,168     4,018      -150

latchlist of block allocation        245        80      -165

latchJS queue state obj latch        486       252      -234

latchundo global data            546,976   547,262       286

STAT...calls to get snapshot s   281,447   281,127      -320

latchenqueues                      2,432     2,063      -369

STAT...buffer is not pinned co    12,813    12,427      -386

STAT...IMU- failed to get a pr     8,907     8,493      -414

STAT...IMU pool not allocated      8,907     8,493      -414

STAT...cleanout - number of kt     1,566     1,133      -433

STAT...active txn count during     1,389       956      -433

latchSQL memory manager workar     1,303       868      -435

STAT...consistent gets - exami   342,647   342,116      -531

STAT...recursive cpu usage         1,704     1,003      -701

STAT...CPU used when call star     1,928     1,203      -725

STAT...CPU used by this sessio     1,928     1,203      -725

STAT...DB time                     2,585     1,703      -882

STAT...hot buffers moved to he     1,208         0    -1,208

STAT...switch current to new b     1,264         0    -1,264

latchsession idle bit                263     1,700     1,437

STAT...calls to kcmgcs             2,339       803    -1,536

latchcache buffer handles          3,034     1,255    -1,779

latchsession allocation            7,506     9,570     2,064

latchlibrary cache lock            2,477     4,939     2,462

STAT...redo ordering marks         4,352     1,783    -2,569

STAT...rollback changes - undo     2,700         4    -2,696

latchcheckpoint queue latch       13,708    10,933    -2,775

STAT...calls to kcmgas           119,054   115,175    -3,879

STAT...free buffer requested      13,965     7,869    -6,096

STAT...table scan blocks gotte   118,393   112,276    -6,117

STAT...no work - consistent re   237,863   231,521    -6,342

STAT...consistent gets           582,789   575,657    -7,132

STAT...consistent gets from ca   582,789   575,657    -7,132

latchConsistent RBA               74,764    66,472    -8,292

latchmostly latch-free SCN        74,813    66,486    -8,327

latchlgwr LWN SCN                 74,769    66,436    -8,333

STAT...messages sent              74,770    66,436    -8,334

latchcache buffers lru chain      41,576    30,955   -10,621

STAT...free buffer inspected      13,321         0   -13,321

latchobject queue header opera    56,580    36,948   -19,632

latchmessages                    221,645   198,144   -23,501

latchredo writing                225,013   199,935   -25,078

latchredo allocation             441,395   415,945   -25,450

latchsimulator lru latch         108,398    78,460   -29,938

latchsimulator hash latch        110,063    79,545   -30,518

STAT...deferred (CURRENT) bloc   113,306    56,136   -57,170

STAT...physical read bytes       221,184   147,456   -73,728

STAT...physical read total byt   221,184   147,456   -73,728

STAT...IMU Flushes               103,035     3,033  -100,002

STAT...IMU commits                     0   100,415   100,415

STAT...enqueue releases          336,854   224,702  -112,152

STAT...enqueue requests          336,854   224,702  -112,152

STAT...commit cleanouts succes   282,507   169,224  -113,283

STAT...commit cleanouts          282,514   169,231  -113,283

STAT...execute count             392,218   224,189  -168,029

STAT...recursive calls           956,477   787,573  -168,904

latchIn memory undo latch        669,714   466,685  -203,029

latchdml lock allocation         448,392   224,432  -223,960

latchenqueue hash chains         675,343   451,005  -224,338

STAT...buffer is pinned count    277,659     1,769  -275,890

STAT...redo entries              607,160   307,006  -300,154

STAT...db block gets from cach 1,041,178   735,660  -305,518

STAT...db block gets           1,041,178   735,660  -305,518

STAT...session logical reads   1,623,967 1,311,317  -312,650

STAT...session uga memory        392,880    65,464  -327,416

latchlibrary cache               792,505   462,068  -330,437

latchlibrary cache pin           788,056   455,048  -333,008

STAT...session uga memory max    516,332   138,512  -377,820

latchshared pool                 705,607   233,465  -472,142

STAT...db block changes        1,448,639   852,288  -596,351

STAT...session pga memory        589,824  -131,072  -720,896

STAT...table scan rows gotten  9,698,389 8,915,734  -782,655

latchrow cache objects         1,707,517    30,186-1,677,331

latchcache buffers chains      6,709,233 4,968,781-1,740,452

STAT...session pga memory max  2,752,512         0-2,752,512

STAT...undo change vector size##############################

STAT...IMU undo allocation siz##############################

STAT...redo size              ##############################

STAT...IMU Redo allocation siz########## 1,031,880##########

==========================================