Scripts:查询数据文件IO使用率的脚本 perf_file_io.sql

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-- |                          Jeffrey M. Hunter                                 |

-- |                      jhunter@idevelopment.info                             |

-- |                         www.idevelopment.info                              |

-- |----------------------------------------------------------------------------|

-- |      Copyright (c) 1998-2011 Jeffrey M. Hunter. All rights reserved.       |

-- |----------------------------------------------------------------------------|

-- | DATABASE : Oracle                                                          |

-- | FILE     : perf_file_io.sql                                                |

-- | CLASS    : Tuning                                                          |

-- | PURPOSE  : Reports on Read/Write datafile activity. This script was        |

-- |            designed to work with Oracle8i or higher. It will include all   |

-- |            tablespaces using any type of extent management as well as true |

-- |            TEMPORARY tablespaces. (i.e. use of "tempfiles")                |

-- | NOTE     : As with any code, ensure to test this script in a development   |

-- |            environment before attempting to run it in production.          |

-- +----------------------------------------------------------------------------+

SET LINESIZE 145

SET PAGESIZE 9999

SET VERIFY   off

COLUMN ts_name    FORMAT a15          HEAD 'Tablespace'

COLUMN fname      FORMAT a45          HEAD 'File Name'

COLUMN phyrds     FORMAT 999,999,999  HEAD 'Physical Reads'

COLUMN phywrts    FORMAT 999,999,999  HEAD 'Physical Writes'

COLUMN read_pct   FORMAT 999.99       HEAD 'Read Pct.'

COLUMN write_pct  FORMAT 999.99       HEAD 'Write Pct.'

BREAK ON report

COMPUTE SUM OF phyrds     ON report

COMPUTE SUM OF phywrts    ON report

COMPUTE AVG OF read_pct   ON report

COMPUTE AVG OF write_pct  ON report

SELECT

    df.tablespace_name                       ts_name

  , df.file_name                             fname

  , fs.phyrds                                phyrds

  , (fs.phyrds * 100) / (fst.pr + tst.pr)    read_pct

  , fs.phywrts                               phywrts

  , (fs.phywrts * 100) / (fst.pw + tst.pw)   write_pct

FROM

    sys.dba_data_files df

  , v$filestat         fs

  , (select sum(f.phyrds) pr, sum(f.phywrts) pw from v$filestat f) fst

  , (select sum(t.phyrds) pr, sum(t.phywrts) pw from v$tempstat t) tst

WHERE

    df.file_id = fs.file#

UNION

SELECT

    tf.tablespace_name                     ts_name

  , tf.file_name                           fname

  , ts.phyrds                              phyrds

  , (ts.phyrds * 100) / (fst.pr + tst.pr)  read_pct

  , ts.phywrts                             phywrts

  , (ts.phywrts * 100) / (fst.pw + tst.pw) write_pct

FROM

    sys.dba_temp_files  tf

  , v$tempstat          ts

  , (select sum(f.phyrds) pr, sum(f.phywrts) pw from v$filestat f) fst

  , (select sum(t.phyrds) pr, sum(t.phywrts) pw from v$tempstat t) tst

WHERE

    tf.file_id = ts.file#

ORDER BY phyrds DESC

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