进一步理解oracle11g之v$sga_resize_ops
结论
1,v$sga_resize_ops记录已完成的近期850次SGA组件重定义大小的操作，注意是已经完成与之对应的是v$sga_current_resize_ops它仅记录当前正在操作中的SGA组件重定义操作，注意是正在操作中的
2,由此引申出，ORACLE任何知识皆有正反性，对应即有对应的知识点，所以考虑问题要从自反和辩证方面分析，才会更进一步理解ORACLE
3,不要基于__db_cache_size(以及类似的SGA其它组件)显式调整SGA对应组件的大小，它不会记录到v$sga_resize_ops
4,可以随意增减__db_cache_size(其它类似),ORACLE不会有任何报错
5,如果仅是单方面调整了db_cache_size或其它组件大小（非隐含对应参数），不管成功或失败，皆会记录到v$sga_resize_ops
6,如果要增加一个SGA组件大小，先要减少其它SGA组件的大小，然后才能增加这个SGA组件的大小，所以这是2个连续的操作
7,并且最终要调整的SGA组件大小并非和要调整的大小一致，我想这取决于SGA组件的大小以及各个组件内部的存储结构以入要调整组件的大小
测试
SQL> select * from v$version where rownum=1;BANNER
----------------------------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
SQL> col oper_type for a15
SQL> col parameter for a20
SQL> col component for a30
SQL> set linesize 300
SQL> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';
Session altered.
SQL> col oper_mode noprint
----未调整前的SGA组件重定义大小操作信息，此视图记录已经近期完成的850次重定义操作记录，如果是当前正在重定义操作，请到v$sga_current_resize_ops查看，二视图结构相同
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
e
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
13 rows selected.
SQL> show parameter sga_
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
sga_max_size big integer 548M
sga_target big integer 0
SQL> show parameter _pool
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
buffer_pool_keep string
buffer_pool_recycle string
global_context_pool_size string
java_pool_size big integer 24M
large_pool_size big integer 0
olap_page_pool_size big integer 0
shared_pool_reserved_size big integer 24326963
shared_pool_size big integer 464M
streams_pool_size big integer 0
NAME_1 VALUE_1 DESC1
-------------------------------------------------- -------------------------------------------------- --------------------------------------------------
__db_cache_size 50331648 Actual size of DEFAULT buffer pool for standard bl
ock size buffers
__shared_pool_size 486539264 Actual size in bytes of shared pool
SQL> select 50331648/1024/1024 as db_cache_size,486539264/1024/1024 as shared_pool_size from dual;
DB_CACHE_SIZE SHARED_POOL_SIZE
------------- ----------------
48 464
---我基于v$sga_resize_ops之前的测试，对于其列final_size，发现其与此__db_cache_size及__shared_pool_size,即和各个组件当前实际分配大小有关，所以我想看看直接手工调整共享池及DB CACHE大小，看不会
记录到上述视图中
SQL> alter system set "__shared_pool_size"=400m;
System altered.
SQL> alter system set "__db_cache_size"=112m;
System altered.
---可见虽然显式调整了共享池以及DB CACHE的当前实际大小，sga仍未发生重定义大小操作
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
e
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
13 rows selected.
---可见db cache实际大小没有调整，而共享池大小有调整
NAME_1 VALUE_1 DESC1
-------------------------------------------------- -------------------------------------------------- --------------------------------------------------
__db_cache_size 50331648 Actual size of DEFAULT buffer pool for standard bl
ock size buffers
__shared_pool_size 419430400 Actual size in bytes of shared pool
SQL> alter system set "__shared_pool_size"=50m;
System altered.
---发现db cache可以随意调整，即使调错也不报错
SQL> alter system set "__db_cache_size"=100g;
System altered.
SQL> show parameter db_cache
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_cache_advice string ON
db_cache_size big integer 48M
SQL> show parameter shared_pool
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
shared_pool_reserved_size big integer 24326963
shared_pool_size big integer 464M
----可见如果把某个SGA组件调整过小，则会记录SGA组件重定义操作
SQL> alter system set shared_pool_size=10m;
alter system set shared_pool_size=10m
*
ERROR at line 1:
ORA-02097: parameter cannot be modified because specified value is invalid
ORA-04034: unable to shrink pool to specified size
--可见target_size为显式要调整的值，final_size为基于SGA各组件当前实际情况最终要调整的值
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
e
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool SHRINK shared_pool_size 486539264 12 268 ERROR 2015-12-15 06:57:38 2015-12-15 06:57:40 ---上述调整共享池操作
14 rows selected.
SQL> show parameter shared_pool_size
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
shared_pool_size big integer 268M
NAME_1 VALUE_1 DESC1
-------------------------------------------------- -------------------------------------------------- --------------------------------------------------
__shared_pool_size 281018368 Actual size in bytes of shared pool
SQL> select 281018368/1024/1024 mb from dual;
MB
----------
268
---增加DB CACHE的大小操作
SQL> alter system set db_cache_size=1g;
alter system set db_cache_size=1g
*
ERROR at line 1:
ORA-02097: parameter cannot be modified because specified value is invalid
ORA-00384: Insufficient memory to grow cache
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
e
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool SHRINK shared_pool_size 486539264 12 268 ERROR 2015-12-15 06:57:38 2015-12-15 06:57:40
DEFAULT buffer cache GROW db_cache_size 50331648 1024 244 ERROR 2015-12-15 07:05:05 2015-12-15 07:05:05 ---当前增加DB CACHE的操作
15 rows selected.
SQL> show parameter db_cache
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_cache_advice string ON
db_cache_size big integer 244M
SQL> show parameter shared_pool_size
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
shared_pool_size big integer 268M
SQL> alter system set db_cache_size=100m;
System altered.
SQL> alter system set shared_pool_size=412m;
System altered.
SQL> show parameter db_cache
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_cache_advice string ON
db_cache_size big integer 100M
SQL> show parameter shared_pool_size
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
shared_pool_size big integer 412M
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
e
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool SHRINK shared_pool_size 486539264 12 268 ERROR 2015-12-15 06:57:38 2015-12-15 06:57:40
DEFAULT buffer cache GROW db_cache_size 50331648 1024 244 ERROR 2015-12-15 07:05:05 2015-12-15 07:05:05
DEFAULT buffer cache SHRINK db_cache_size 255852544 100 100 COMPLETE 2015-12-15 07:12:29 2015-12-15 07:12:29 ---上述减少db cache
shared pool GROW shared_pool_size 281018368 412 412 COMPLETE 2015-12-15 07:13:03 2015-12-15 07:13:03 ---上述增加共享池
17 rows selected.
SQL> show parameter db_cache
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
db_cache_advice string ON
db_cache_size big integer 100M
SQL> show parameter shared_pool
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
shared_pool_reserved_size big integer 24326963
shared_pool_size big integer 412M
SQL> alter system set shared_pool_size=300m;
System altered.
SQL> alter system set db_cache_size=242m;
alter system set db_cache_size=242m
*
ERROR at line 1:
ORA-02097: parameter cannot be modified because specified value is invalid
ORA-00384: Insufficient memory to grow cache
SQL> alter system set db_cache_size=212m;
System altered.
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
e
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool SHRINK shared_pool_size 486539264 12 268 ERROR 2015-12-15 06:57:38 2015-12-15 06:57:40
DEFAULT buffer cache GROW db_cache_size 50331648 1024 244 ERROR 2015-12-15 07:05:05 2015-12-15 07:05:05
DEFAULT buffer cache SHRINK db_cache_size 255852544 100 100 COMPLETE 2015-12-15 07:12:29 2015-12-15 07:12:29
shared pool GROW shared_pool_size 281018368 412 412 COMPLETE 2015-12-15 07:13:03 2015-12-15 07:13:03
shared pool SHRINK shared_pool_size 432013312 300 300 COMPLETE 2015-12-15 07:16:28 2015-12-15 07:16:28
DEFAULT buffer cache GROW db_cache_size 104857600 244 212 ERROR 2015-12-15 07:16:42 2015-12-15 07:16:42
19 rows selected.
SQL> alter system set db_cache_size=170m;
System altered.
SQL> select component,oper_type,oper_mode,parameter,initial_size,target_size/1024/1024 as target_size,final_size/1024/1024 as final_size,status,start_time,end_time from v$sga_resize_ops;
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 4K buffer cache STATIC db_4k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
RECYCLE buffer cache STATIC db_recycle_cache_siz 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
e
streams pool STATIC streams_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT buffer cache STATIC db_cache_size 0 48 48 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
KEEP buffer cache STATIC db_keep_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 2K buffer cache STATIC db_2k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 8K buffer cache STATIC db_8k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
ASM Buffer Cache STATIC db_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
DEFAULT 16K buffer cache STATIC db_16k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
COMPONENT OPER_TYPE PARAMETER INITIAL_SIZE TARGET_SIZE FINAL_SIZE STATUS START_TIME END_TIME
------------------------------ --------------- -------------------- ------------ ----------- ---------- ------------------ ------------------- -------------------
DEFAULT 32K buffer cache STATIC db_32k_cache_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
large pool STATIC large_pool_size 0 0 0 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
java pool STATIC java_pool_size 0 24 24 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool STATIC shared_pool_size 0 464 464 COMPLETE 2015-12-15 04:04:29 2015-12-15 04:04:29
shared pool SHRINK shared_pool_size 486539264 12 268 ERROR 2015-12-15 06:57:38 2015-12-15 06:57:40
DEFAULT buffer cache GROW db_cache_size 50331648 1024 244 ERROR 2015-12-15 07:05:05 2015-12-15 07:05:05
DEFAULT buffer cache SHRINK db_cache_size 255852544 100 100 COMPLETE 2015-12-15 07:12:29 2015-12-15 07:12:29
shared pool GROW shared_pool_size 281018368 412 412 COMPLETE 2015-12-15 07:13:03 2015-12-15 07:13:03
shared pool SHRINK shared_pool_size 432013312 300 300 COMPLETE 2015-12-15 07:16:28 2015-12-15 07:16:28
DEFAULT buffer cache GROW db_cache_size 104857600 244 212 ERROR 2015-12-15 07:16:42 2015-12-15 07:16:42
DEFAULT buffer cache SHRINK db_cache_size 222298112 172 172 COMPLETE 2015-12-15 07:39:31 2015-12-15 07:39:31
20 rows selected.
SQL>
正文到此结束
热门推荐
相关文章
近期评论
-
文章和留言都翻到11页了 没有OOM
-
-
朋友，翻页到11页，及以后，会出现OOM，无法访问
-
-
搞个gitee的项目
-
-
版本号是多少，你可以下载哪个代码仓库，jdk选1.8 直接跑就行
-
-
-
Loading...
![[HBLOG]公众号](https://www.liuhaihua.cn/img/qrcode_gzh.jpg)
