2026-03-12 20:23:15

2026-03-12 21:23:47 +01:00
parent eab4b36eca
commit 93039b8489
3332 changed files with 699614 additions and 0 deletions
--- a/tpt/exadata/demos/flash_cache_demos.sql
+++ b/tpt/exadata/demos/flash_cache_demos.sql
@@ -0,0 +1,76 @@
+-- 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.
+
+--CREATE BIGFILE TABLESPACE tanel_demo_auto   DATAFILE SIZE 100M AUTOEXTEND ON EXTENT MANAGEMENT LOCAL AUTOALLOCATE     SEGMENT SPACE MANAGEMENT AUTO;
+--CREATE BIGFILE TABLESPACE tanel_demo_small  DATAFILE SIZE 100M AUTOEXTEND ON EXTENT MANAGEMENT LOCAL UNIFORM SIZE 64K SEGMENT SPACE MANAGEMENT AUTO;
+--CREATE BIGFILE TABLESPACE tanel_demo_medium DATAFILE SIZE 100M AUTOEXTEND ON EXTENT MANAGEMENT LOCAL UNIFORM SIZE 8M  SEGMENT SPACE MANAGEMENT AUTO;
+--CREATE BIGFILE TABLESPACE tanel_demo_large  DATAFILE SIZE 100M AUTOEXTEND ON EXTENT MANAGEMENT LOCAL UNIFORM SIZE 64M SEGMENT SPACE MANAGEMENT AUTO;
+
+ALTER SESSION SET parallel_force_local = TRUE;
+
+DROP TABLE t_fc_insert PURGE;
+ALTER TABLESPACE tanel_demo_auto RESIZE 100M;
+
+CREATE TABLE t_fc_insert TABLESPACE tanel_demo_auto STORAGE (CELL_FLASH_CACHE KEEP) AS 
+SELECT * FROM tanel.sales
+WHERE 1=0;
+
+ALTER SESSION ENABLE PARALLEL DML; -- otherwise the INSERT part will be serial, done by QC
+
+VAR snapper       REFCURSOR
+VAR begin_snap_id NUMBER
+VAR end_snap_id   NUMBER
+
+EXEC :begin_snap_id := exasnap.begin_snap;
+@snapper4 all,begin 1 1 &mysid
+INSERT /*+ APPEND MONITOR PARALLEL(8) */ INTO t_fc_insert SELECT * FROM tanel.sales;
+COMMIT;
+@snapper4 all,end   1 1 &mysid
+EXEC :end_snap_id := exasnap.end_snap;
+
+@xp &mysid
+SELECT * FROM TABLE(exasnap.display_snap(:begin_snap_id, :end_snap_id, '%'));
+
+
+
+-- different caching options
+DROP TABLE t_cached PURGE;
+DROP TABLE t_default_cached PURGE;
+DROP TABLE t_not_cached PURGE;
+DROP TABLE t_small_extents;
+
+CREATE TABLE t_cached         NOPARALLEL TABLESPACE tanel_demo_auto  STORAGE (cell_flash_cache KEEP)    AS SELECT * FROM sales;
+CREATE TABLE t_default_cached NOPARALLEL TABLESPACE tanel_demo_auto  STORAGE (cell_flash_cache DEFAULT) AS SELECT * FROM sales;
+CREATE TABLE t_not_cached     PARALLEL 16 TABLESPACE tanel_demo_auto  STORAGE (cell_flash_cache NONE)    AS SELECT * FROM sales;
+
+CREATE TABLE t_small_extents  PARALLEL 16 TABLESPACE tanel_demo_small STORAGE (CELL_FLASH_CACHE DEFAULT) AS SELECT * FROM sales;
+
+
+
+-- cell commands
+-- iostat -xm 5 | egrep -v "sd.[0-9]|^md"
+-- lsscsi
+
+-- DESCRIBE FLASHCACHECONTENT
+-- cachedKeepSize
+-- cachedSize
+-- dbID
+-- dbUniqueName
+-- hitCount
+-- hoursToExpiration
+-- missCount
+-- objectNumber
+-- tableSpaceNumber
+
+-- LIST FLASHCACHECONTENT ATTRIBUTES ALL;
+-- dcli -l root -g ~/x2cells "cellcli -e 'LIST FLASHCACHECONTENT ATTRIBUTES cachedKeepSize,cachedSize,dbID,dbUniqueName,hitCount,missCount,objectNumber,tableSpaceNumber'" | sed 's/:/       /' > fc.xls
+
+--   cachedKeepSize:       0
+--   cachedSize:           1048576
+--   dbID:                 1538629110
+--   dbUniqueName:         DEMO
+--   hitCount:             103840
+--   missCount:            4
+--   objectNumber:         4294967294
+--   tableSpaceNumber:     0
+