2026-03-12 20:23:15

2026-03-12 21:23:47 +01:00
parent eab4b36eca
commit 93039b8489
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--- a/tpt/fcha.sql
+++ b/tpt/fcha.sql
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+-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
+-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
+
+--------------------------------------------------------------------------------
+--
+-- File name:   fcha.sql (Find CHunk Address) v0.2
+-- Purpose:     Find in which heap (UGA, PGA or Shared Pool) a memory address resides
+--              
+-- Author:      Tanel Poder
+-- Copyright:   (c) http://blog.tanelpoder.com | @tanelpoder
+--              
+-- Usage:       @fcha <addr_hex>
+--              @fcha F6A14448
+--
+-- Other:       This would only report an UGA/PGA chunk address if it belongs
+--              to *your* process/session (x$ksmup and x$ksmpp do not see other
+--              session/process memory)
+--              
+-- History:     Jan 20 2021 Frits Hoogland Added query for fixed sga (x$ksmfsv)
+--------------------------------------------------------------------------------
+
+prompt Find in which heap (UGA, PGA, fixed SGA or Shared Pool) the memory address &1 resides...
+prompt
+prompt WARNING!!! This script will query X$KSMSP, which will cause heavy shared pool latch contention 
+prompt in systems under load and with large shared pool. This may even completely hang 
+prompt your instance until the query has finished! You probably do not want to run this in production!
+prompt
+pause  Press ENTER to continue, CTRL+C to cancel...
+
+
+select
+    'VSGA' LOC,
+    KSMCHPTR,
+    KSMCHIDX,
+    KSMCHDUR,
+    KSMCHCOM,
+    KSMCHSIZ,
+    KSMCHCLS,
+    KSMCHTYP,
+    KSMCHPAR
+from 
+    x$ksmsp 
+where 
+    to_number(substr('&1', instr(lower('&1'), 'x')+1) ,'XXXXXXXXXXXXXXXX') 
+    between 
+        to_number(ksmchptr,'XXXXXXXXXXXXXXXX')
+    and to_number(ksmchptr,'XXXXXXXXXXXXXXXX') + ksmchsiz - 1
+union all
+select
+    'UGA',
+    KSMCHPTR,
+    null,
+    null,
+    KSMCHCOM,
+    KSMCHSIZ,
+    KSMCHCLS,
+    KSMCHTYP,
+    KSMCHPAR
+from 
+    x$ksmup 
+where 
+    to_number(substr('&1', instr(lower('&1'), 'x')+1) ,'XXXXXXXXXXXXXXXX') 
+    between 
+        to_number(ksmchptr,'XXXXXXXXXXXXXXXX')
+    and to_number(ksmchptr,'XXXXXXXXXXXXXXXX') + ksmchsiz - 1
+union all
+select
+    'PGA',
+    KSMCHPTR,
+    null,
+    null,
+    KSMCHCOM,
+    KSMCHSIZ,
+    KSMCHCLS,
+    KSMCHTYP,
+    KSMCHPAR
+from 
+    x$ksmpp 
+where 
+    to_number(substr('&1', instr(lower('&1'), 'x')+1) ,'XXXXXXXXXXXXXXXX') 
+    between 
+        to_number(ksmchptr,'XXXXXXXXXXXXXXXX')
+    and to_number(ksmchptr,'XXXXXXXXXXXXXXXX') + ksmchsiz - 1
+union all
+select
+   'FSGA',
+   ksmfsadr,
+   null,
+   null,
+   ksmfsnam||' '||ksmfstyp,
+   ksmfssiz,
+   null,
+   null,
+   null
+from
+    x$ksmfsv
+where
+    to_number(substr('&1', instr(lower('&1'), 'x')+1) ,'XXXXXXXXXXXXXXXX')
+    between
+        to_number(ksmfsadr,'XXXXXXXXXXXXXXXX')
+    and to_number(ksmfsadr,'XXXXXXXXXXXXXXXX') + ksmfssiz - 1
+/