68 lines
3.0 KiB
MySQL
68 lines
3.0 KiB
MySQL
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-- +----------------------------------------------------------------------------+
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-- | Jeffrey M. Hunter |
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-- | jhunter@idevelopment.info |
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-- | www.idevelopment.info |
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-- |----------------------------------------------------------------------------|
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-- | Copyright (c) 1998-2011 Jeffrey M. Hunter. All rights reserved. |
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-- |----------------------------------------------------------------------------|
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-- | DATABASE : Oracle |
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-- | FILE : perf_file_io.sql |
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-- | CLASS : Tuning |
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-- | PURPOSE : Reports on Read/Write datafile activity. This script was |
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-- | designed to work with Oracle8i or higher. It will include all |
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-- | tablespaces using any type of extent management as well as true |
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-- | TEMPORARY tablespaces. (i.e. use of "tempfiles") |
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-- | NOTE : As with any code, ensure to test this script in a development |
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-- | environment before attempting to run it in production. |
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-- +----------------------------------------------------------------------------+
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SET LINESIZE 145
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SET PAGESIZE 9999
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SET VERIFY off
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COLUMN ts_name FORMAT a15 HEAD 'Tablespace'
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COLUMN fname FORMAT a45 HEAD 'File Name'
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COLUMN phyrds FORMAT 999,999,999 HEAD 'Physical Reads'
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COLUMN phywrts FORMAT 999,999,999 HEAD 'Physical Writes'
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COLUMN read_pct FORMAT 999.99 HEAD 'Read Pct.'
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COLUMN write_pct FORMAT 999.99 HEAD 'Write Pct.'
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BREAK ON report
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COMPUTE SUM OF phyrds ON report
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COMPUTE SUM OF phywrts ON report
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COMPUTE AVG OF read_pct ON report
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COMPUTE AVG OF write_pct ON report
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SELECT
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df.tablespace_name ts_name
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, df.file_name fname
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, fs.phyrds phyrds
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, (fs.phyrds * 100) / (fst.pr + tst.pr) read_pct
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, fs.phywrts phywrts
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, (fs.phywrts * 100) / (fst.pw + tst.pw) write_pct
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FROM
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sys.dba_data_files df
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, v$filestat fs
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, (select sum(f.phyrds) pr, sum(f.phywrts) pw from v$filestat f) fst
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, (select sum(t.phyrds) pr, sum(t.phywrts) pw from v$tempstat t) tst
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WHERE
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df.file_id = fs.file#
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UNION
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SELECT
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tf.tablespace_name ts_name
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, tf.file_name fname
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, ts.phyrds phyrds
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, (ts.phyrds * 100) / (fst.pr + tst.pr) read_pct
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, ts.phywrts phywrts
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, (ts.phywrts * 100) / (fst.pw + tst.pw) write_pct
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FROM
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sys.dba_temp_files tf
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, v$tempstat ts
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, (select sum(f.phyrds) pr, sum(f.phywrts) pw from v$filestat f) fst
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, (select sum(t.phyrds) pr, sum(t.phywrts) pw from v$tempstat t) tst
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WHERE
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tf.file_id = ts.file#
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ORDER BY phyrds DESC
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/
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