SAN storage 2 Gb fiber fast but slow on VMWare with direct access from Windows

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  Select nvl(sum(BM_OPENST_D - BM_OPENST_CR),0) 
  from bh.bh123gh
  where 
  F123_AR_NR>='4400000000' and
  F123_AR_NR<='4404000000' and
  F123_KL_LEV_AR_NR='0631001000' and
  SRT_REK=2 and
  F123_BKJR>=0000 and
  F123_BKJR<=2011 and
  F123_FIRMA=2;

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  SQL> 
  SQL> show parameter optimizer
  
  NAME                                 TYPE        VALUE
  ------------------------------------ ----------- ------------------------------
  optimizer_capture_sql_plan_baselines boolean     FALSE
  optimizer_dynamic_sampling           integer     2
  optimizer_features_enable            string      11.2.0.1
  optimizer_index_caching              integer     0
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  NAME                                 TYPE        VALUE
  ------------------------------------ ----------- ------------------------------
  db_file_multiblock_read_count        integer     6
  SQL> 
  SQL> show parameter db_block_size
  
  NAME                                 TYPE        VALUE
  ------------------------------------ ----------- ------------------------------
  db_block_size                        integer     8192
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  SQL> show parameter cursor_sharing
  
  NAME                                 TYPE        VALUE
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  SQL> column sname format a20
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  SQL> column pval2 format a20
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  SQL> select         sname
    2              , pname
    3              , pval1
    4              , pval2
    5  from
    6              sys.aux_stats$;
  
  SNAME                PNAME                     PVAL1 PVAL2
  -------------------- -------------------- ---------- --------------------
  SYSSTATS_INFO        STATUS                          COMPLETED
  SYSSTATS_INFO        DSTART                          03-30-2010 11:05
  SYSSTATS_INFO        DSTOP                           03-30-2010 11:05
  SYSSTATS_INFO        FLAGS                         1
  SYSSTATS_MAIN        CPUSPEEDNW           1183.90219
  SYSSTATS_MAIN        IOSEEKTIM                    10
  SYSSTATS_MAIN        IOTFRSPEED                 4096
  SYSSTATS_MAIN        SREADTIM
  SYSSTATS_MAIN        MREADTIM
  SYSSTATS_MAIN        CPUSPEED
  SYSSTATS_MAIN        MBRC
  SYSSTATS_MAIN        MAXTHR
  SYSSTATS_MAIN        SLAVETHR
  
  13 rows selected.
  
  Elapsed: 00:00:00.03
  SQL> 
  SQL> explain plan for
    2  Select nvl(sum(BM_OPENST_DEB - BM_OPENST_CR),0)
    3  from bh.bh123gh
    4  where
    5  F123_AR_NR>='4400000000' and
    6  F123_AR_NR<='4404000000' and
    7  F123_KL_LEV_AR_NR='0631001000' and
    8  SRT_REK=2 and
    9  F123_BKJR>=0000 and
   10  F123_BKJR<=2011 and
   11  F123_FIRMA=2;
  
  Explained.
  
  Elapsed: 00:00:00.10
  SQL> 
  SQL> select * from table(dbms_xplan.display);
  
  PLAN_TABLE_OUTPUT
  ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  Plan hash value: 3488495774
  
  -------------------------------------------------------------------------------------------------
  | Id  | Operation                    | Name             | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT             |                  |     1 |    38 |  1792   (1)| 00:00:22 |
  |   1 |  SORT AGGREGATE              |                  |     1 |    38 |            |          |
  |*  2 |   TABLE ACCESS BY INDEX ROWID| BH123GH          |  5059 |   187K|  1792   (1)| 00:00:22 |
  |*  3 |    INDEX RANGE SCAN          | I_BH123GH_ISABEL |  5059 |       |   145   (0)| 00:00:02 |
  -------------------------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
     2 - filter("F123_BKJR">=0000 AND "F123_BKJR"<=2011)
     3 - access("F123_FIRMA"=2 AND "SRT_REK"=2 AND "F123_KL_LEV_AR_NR"='0631001000'
                AND "F123_AR_NR">='4400000000' AND "F123_AR_NR"<='4404000000')
         filter("F123_AR_NR"<='4404000000' AND "F123_AR_NR">='4400000000')
  
  18 rows selected.
  
  Elapsed: 00:00:00.20
  SQL> 
  SQL> rollback;
  
  Rollback complete.
  
  Elapsed: 00:00:00.01
  SQL> 
  SQL> rem Set the ARRAYSIZE according to your application
  SQL> set autotrace traceonly arraysize 100
  SQL> 
  SQL> alter session set tracefile_identifier = 'mytrace1';
  
  Session altered.
  
  Elapsed: 00:00:00.01
  SQL> 
  SQL> rem if you're using bind variables
  SQL> rem define them here
  SQL> 
  SQL> rem variable b_var1 number
  SQL> rem variable b_var2 varchar2(20)
  SQL> 
  SQL> rem and initialize them
  SQL> 
  SQL> rem exec :b_var1 := 1
  SQL> rem exec :b_var2 := 'DIAG'
  SQL> 
  SQL> alter session set events '10046 trace name context forever, level 8';
  
  Session altered.
  
  Elapsed: 00:00:00.03
  SQL> 
  SQL> -- put your statement here
  SQL> Select nvl(sum(BM_OPENST_D - BM_OPENST_CR),0)
    2  from bh.bh123gh
    3  where
    4  F123_AR_NR>='4400000000' and
    5  F123_AR_NR<='4404000000' and
    6  F123_KL_LEV_AR_NR='0631001000' and
    7  SRT_REK=2 and
    8  F123_BKJR>=0000 and
    9  F123_BKJR<=2011 and
   10  F123_FIRMA=2;
  
  Elapsed: 00:00:09.92
  
  Execution Plan
  ----------------------------------------------------------
  Plan hash value: 3488495774
  
  -------------------------------------------------------------------------------------------------
  | Id  | Operation                    | Name             | Rows  | Bytes | Cost (%CPU)| Time     |
  -------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT             |                  |     1 |    38 |  1792   (1)| 00:00:22 |
  |   1 |  SORT AGGREGATE              |                  |     1 |    38 |            |          |
  |*  2 |   TABLE ACCESS BY INDEX ROWID| BH123GH          |  5059 |   187K|  1792   (1)| 00:00:22 |
  |*  3 |    INDEX RANGE SCAN          | I_BH123GH_ISABEL |  5059 |       |   145   (0)| 00:00:02 |
  -------------------------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
     2 - filter("F123_BKJR">=0000 AND "F123_BKJR"<=2011)
     3 - access("F123_FIRMA"=2 AND "SRT_REK"=2 AND "F123_KL_LEV_AR_NR"='0631001000'
                AND "F123_AR_NR">='4400000000' AND "F123_AR_NR"<='4404000000')
         filter("F123_AR_NR"<='4404000000' AND "F123_AR_NR">='4400000000')
  
  
  Statistics
  ----------------------------------------------------------
            1  recursive calls
            0  db block gets
        11104  consistent gets
         9434  physical reads
            0  redo size
          574  bytes sent via SQL*Net to client
          519  bytes received via SQL*Net from client
            2  SQL*Net roundtrips to/from client
            0  sorts (memory)
            0  sorts (disk)
            1  rows processed
  
  SQL> 
  SQL> disconnect
  Disconnected from Oracle Database 11g Release 11.2.0.1.0 - 64bit Production
  SQL> 
  SQL> spool off

  The trace output:
  

  TKPROF: Release 11.2.0.1.0 - Development on Tue Nov 22 13:58:33 2011
  
  Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.
  
  Trace file: C:\Oracle\diag\rdbms\oravopak\oravopak\trace\oravopak_ora_7352_mytrace1.trc
  Sort options: default
  
  ********************************************************************************
  count    = number of times OCI procedure was executed
  cpu      = cpu time in seconds executing 
  elapsed  = elapsed time in seconds executing
  disk     = number of physical reads of buffers from disk
  query    = number of buffers gotten for consistent read
  current  = number of buffers gotten in current mode (usually for update)
  rows     = number of rows processed by the fetch or execute call
  ********************************************************************************
  
  Select nvl(sum(BM_OPENST_D - BM_OPENST_CR),0)
  from bh.bh123gh
  where
  F123_AR_NR>='4400000000' and
  F123_AR_NR<='4404000000' and
  F123_KL_LEV_AR_NR='0631001000' and
  SRT_REK=2 and
  F123_BKJR>=0000 and
  F123_BKJR<=2011 and
  F123_FIRMA=2
  
  call     count       cpu    elapsed       disk      query    current        rows
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  Parse        1      0.01       0.00          0          0          0           0
  Execute      1      0.00       0.00          0          0          0           0
  Fetch        2      0.03       9.86       9434      11104          0           1
  ------- ------  -------- ---------- ---------- ---------- ----------  ----------
  total        4      0.04       9.87       9434      11104          0           1
  
  Misses in library cache during parse: 1
  Optimizer mode: ALL_ROWS
  Parsing user id: SYS
  
  Rows     Row Source Operation
  -------  ---------------------------------------------------
        1  SORT AGGREGATE (cr=11104 pr=9434 pw=0 time=0 us)
    67250   TABLE ACCESS BY INDEX ROWID BH123GH (cr=11104 pr=9434 pw=0 time=10500177 us cost=1792 size=192242 card=5059)
    67250    INDEX RANGE SCAN I_BH123GH_ISABEL (cr=526 pr=550 pw=0 time=44363 us cost=145 size=0 card=5059)(object id 75061)
  
  
  Elapsed times include waiting on following events:
    Event waited on                             Times   Max. Wait  Total Waited
    ----------------------------------------   Waited  ----------  ------------
    SQL*Net message to client                       2        0.00          0.00
    Disk file operations I/O                        1        0.00          0.00
    db file sequential read                      8893        0.10          9.26
    db file scattered read                          7        0.01          0.05
    db file parallel read                           1        0.02          0.02
    SQL*Net message from client                     2        0.00          0.00
  ********************************************************************************

  DBMS_XPLAN. Output DISPLAY_CURSOR:
  

  SQL> 
  SQL> select * from table(dbms_xplan.display_cursor(null, null, 'ALLSTATS LAST'));
  
  PLAN_TABLE_OUTPUT
  ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  SQL_ID  g6pkv639sdfgw, child number 0
  -------------------------------------
  Select /*+ gather_plan_statistics */ nvl(sum(BM_OPENST_DEB -
  BM_OPENST_CR),0) from bh.bh123gh where F123_AR_NR>='4400000000'
  and F123_AR_NR<='4404000000' and F123_KL_LEV_AR_NR='0631001000' and
  SRT_REK=2 and F123_BKJR>=0000 and F123_BKJR<=2011 and
  F123_FIRMA=2
  
  Plan hash value: 3488495774
  
  --------------------------------------------------------------------------------------------------------------------
  | Id  | Operation                    | Name             | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads  |
  --------------------------------------------------------------------------------------------------------------------
  |   0 | SELECT STATEMENT             |                  |      1 |        |      1 |00:00:08.07 |   11104 |  13531 |
  |   1 |  SORT AGGREGATE              |                  |      1 |      1 |      1 |00:00:08.07 |   11104 |  13531 |
  |*  2 |   TABLE ACCESS BY INDEX ROWID| BH123GH          |      1 |   5059 |  67250 |00:00:10.90 |   11104 |  13531 |
  |*  3 |    INDEX RANGE SCAN          | I_BH123GH_ISABEL |      1 |   5059 |  67250 |00:00:00.05 |     526 |    550 |
  --------------------------------------------------------------------------------------------------------------------
  
  Predicate Information (identified by operation id):
  ---------------------------------------------------
  
     2 - filter(("F123_BKJR">=0 AND "F123_BKJR"<=2011))
     3 - access("F123_FIRMA"=2 AND "SRT_REK"=2 AND "F123_KL_LEV_AR_NR"='0631001000' AND
                "F123_AR_NR">='4400000000' AND "F123_AR_NR"<='4404000000')
         filter(("F123_AR_NR"<='4404000000' AND "F123_AR_NR">='4400000000'))
  
  
  27 rows selected.
  
  Elapsed: 00:00:01.15
  SQL> 
  SQL> spool off

  Addition to other boards who has been submitted, a few more suggestions:
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  * The SQL statement uses the predicates like this WHERE clause: "F123_AR_NR > = ' F123_AR_NR «»<=", which="" i="" believe="" would="" be="" treated="" differently="" in="" cardinality="" calculations="" (2="" unbounded="" ranges)when="" compared="" to="" a="" where="" clause="" that="" uses="" between="" syntax="" (a="" single="" bounded="" range).="" the="" query="" optimizer="" will="" actually="" transform="" the="" between="" syntax="" into="" two="" unbounded="" ranges,="" but="" if="" i="" remember="" correctly,="" it="" will="" remember="" that="" the="" ranges="" are="" bounded="" when="" performing="" the="" cardinality="">

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  Charles Hooper
  http://hoopercharles.WordPress.com/
  IT Manager/Oracle DBA
  K & M-making Machine, Inc.

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