2026-03-12 20:23:15

idev/perf_sga_free_pool.sql

@@ -0,0 +1,34 @@
+-- +----------------------------------------------------------------------------+
+-- |                          Jeffrey M. Hunter                                 |
+-- |                      jhunter@idevelopment.info                             |
+-- |                         www.idevelopment.info                              |
+-- |----------------------------------------------------------------------------|
+-- |      Copyright (c) 1998-2011 Jeffrey M. Hunter. All rights reserved.       |
+-- |----------------------------------------------------------------------------|
+-- | DATABASE : Oracle                                                          |
+-- | FILE     : perf_sga_free_pool.sql                                          |
+-- | CLASS    : Tuning                                                          |
+-- | PURPOSE  : Report on Shared / Java Pool within SGA.                        |
+-- | NOTE     : As with any code, ensure to test this script in a development   |
+-- |            environment before attempting to run it in production.          |
+-- +----------------------------------------------------------------------------+
+
+COLUMN pool    HEADING "Pool"
+COLUMN name    HEADING "Name"
+COLUMN sgasize HEADING "Allocated" FORMAT 999,999,999
+COLUMN bytes   HEADING "Free" FORMAT 999,999,999
+
+SELECT
+    f.pool
+  , f.name
+  , s.sgasize
+  , f.bytes
+  , ROUND(f.bytes/s.sgasize*100, 2) "% Free"
+FROM
+    (SELECT SUM(bytes) sgasize, pool FROM v$sgastat GROUP BY pool) s
+  , v$sgastat f
+WHERE
+    f.name = 'free memory'
+  AND f.pool = s.pool
+/
+