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分析ADG網卡流量出現規律性毛刺現象

ror 1.2 napi 自動 ram 分鐘 ogr Owner ras

一、介紹
客戶ADG環境,剛上線的業務系統,通過ZABBIX進行監控,發現每半個小時會出現ADG網卡流量超過1M,持續2分鐘後,平均網絡流量在100K左右。

二、分析
1、ADG 環境備庫流量主要來自主庫redo的數據傳輸,或者出現網絡問題,導致歸檔無法傳輸,恢復後歸檔日誌的傳輸。
2、查看歸檔日誌產生的頻率及大小,檢查告警日誌是否有歸檔日誌傳輸。
3、經過排查並未發現歸檔日誌傳輸。檢查數據庫job,發現並沒有客戶創建的job。
4、檢查系統自帶的Job,dba_scheduler_jobs,我們會發現很多系統自帶的job.
5、數據庫自身自動寫入的數據,而且有定時計劃的可能會導致這個問題。
6、查看awr的寫入的頻率發現是每半個小時執行一次。

7、查看awrinfo.sql詳細信息

以下是測試環境的的awrinfo.sql結果,大家需要熟悉了解。

SQL> @?/rdbms/admin/awrinfo.sql

This script will report general AWR information
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Specify the Report File Name
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The default report file name is awrinfo.txt.  To use this name,
press <return> to continue, otherwise enter an alternative.

Enter value for report_name: 

Using the report name awrinfo.txt
No errors.
No errors.
~~~~~~~~~~~~~~~
AWR INFO Report
~~~~~~~~~~~~~~~

Report generated at 11:06:42 on Jan 26, 2018 ( Friday ) in Timezone +08:00

Warning: Non Default AWR Setting!
--------------------------------------------------------------------------------
Snapshot interval is 60 minutes and Retention is 8 days

       DB_ID DB_NAME   HOST_PLATFORM                             INST STARTUP_TIME      LAST_ASH_SID PAR
------------ --------- ---------------------------------------- ----- ----------------- ------------ ---
* 1486195868 ORCL      roidb01 - Linux x86 64-bit                   1 09:30:24 (01/26)         32052 NO

########################################################
(I) AWR Snapshots Information
########################################################

*****************************************************
(1a) SYSAUX usage - Schema breakdown (dba_segments)
*****************************************************
|
| Total SYSAUX size                        660.9 MB ( 2% of 32,768.0 MB MAX with AUTOEXTEND ON )
|
| Schema  APEX_040200  occupies            247.6 MB (  37.5% )
| Schema  SYS          occupies            200.1 MB (  30.3% )
| Schema  MDSYS        occupies             93.8 MB (  14.2% )
| Schema  XDB          occupies             68.5 MB (  10.4% )
| Schema  ORDDATA      occupies             16.1 MB (   2.4% )
| Schema  SYSTEM       occupies             15.8 MB (   2.4% )
| Schema  WMSYS        occupies              7.2 MB (   1.1% )
| Schema  DVSYS        occupies              4.4 MB (   0.7% )
| Schema  CTXSYS       occupies              3.7 MB (   0.6% )
| Schema  AUDSYS       occupies              1.5 MB (   0.2% )
| Schema  GSMADMIN_INT occupies              1.4 MB (   0.2% )
| Schema  DBSNMP       occupies              0.5 MB (   0.1% )
| Schema  ORDSYS       occupies              0.4 MB (   0.1% )
|
********************************************************
(1b) SYSAUX occupants space usage (v$sysaux_occupants)
********************************************************
|
| Occupant Name        Schema Name               Space Usage
| -------------------- -------------------- ----------------
| SDO                  MDSYS                         93.8 MB
| XDB                  XDB                           68.5 MB
| SM/OTHER             SYS                           53.9 MB
| SM/AWR               SYS                           40.4 MB
| AO                   SYS                           38.8 MB
| XSOQHIST             SYS                           38.8 MB
| ORDIM/ORDDATA        ORDDATA            16.1 MB
| LOGMNR               SYSTEM                        13.9 MB
| SM/OPTSTAT           SYS                           11.4 MB
| SM/ADVISOR           SYS                            8.4 MB
| WM                   WMSYS                          7.2 MB
| TEXT                 CTXSYS                         3.7 MB
| SQL_MANAGEMENT_BASE  SYS                            2.4 MB
| PL/SCOPE             SYS                            1.6 MB
| AUDSYS               AUDSYS                         1.5 MB
| LOGSTDBY             SYSTEM                         1.5 MB
| STREAMS              SYS                            1.0 MB
| JOB_SCHEDULER        SYS                            0.8 MB
| EM_MONITORING_USER   DBSNMP                         0.5 MB
| ORDIM                ORDSYS                         0.4 MB
| SMON_SCN_TIME        SYS                            0.4 MB
| AUTO_TASK            SYS                            0.3 MB
| AUDIT_TABLES         SYS                            0.0 MB
| EM                   SYSMAN                         0.0 MB
| EXPRESSION_FILTER    EXFSYS                         0.0 MB
| ORDIM/ORDPLUGINS     ORDPLUGINS                     0.0 MB
| ORDIM/SI_INFORMTN_SC SI_INFORMTN_SCHEMA             0.0 MB
| STATSPACK            PERFSTAT                       0.0 MB
| TSM                  TSMSYS                         0.0 MB
| ULTRASEARCH          WKSYS                          0.0 MB
| ULTRASEARCH_DEMO_USE WK_TEST                        0.0 MB
| XSAMD                OLAPSYS                        0.0 MB
|
| Others (Unaccounted space)                        255.8 MB
|

******************************************
(1c) SYSAUX usage - Unregistered Schemas
******************************************

| This section displays schemas that are not registered
| in V$SYSAUX_OCCUPANTS
|
| Schema  APEX_040200  occupies            247.6 MB
| Schema  DVSYS        occupies              4.4 MB
| Schema  GSMADMIN_INT occupies              1.4 MB
|
| Total space                              253.4 MB
|

*************************************************************
(1d) SYSAUX usage - Unaccounted space in registered schemas
*************************************************************
|
| This section displays unaccounted space in the registered
| schemas of V$SYSAUX_OCCUPANTS.
|
| Unaccounted space in SYS/SYSTEM            2.4 MB
|
| Total space                                2.4 MB
|
*************************************
(2) Size estimates for AWR snapshots
*************************************
|
| Estimates based on 60 mins snapshot INTERVAL:
|    AWR size/day                          485.3 MB (20,704 K/snap * 24 snaps/day)
|    AWR size/wk                         3,396.8 MB (size_per_day * 7) per instance
|
| Estimates based on 2 snaps in past 24 hours:
|    AWR size/day                          606.6 MB (20,704 K/snap and 2 snaps in past 1.6 hours)
|    AWR size/wk                         4,245.9 MB (size_per_day * 7) per instance
|

**********************************
(3a) Space usage by AWR components (per database)
**********************************

COMPONENT        MB  % AWR  KB_PER_SNAP MB_PER_DAY MB_PER_WEEK TABLE% : INDEX%
--------- --------- ------ ------------ ---------- ----------- ----------------
FIXED          25.6   63.4       13,120      384.4     2,690.6    48% : 52%
SPACE           3.1    7.6        1,568       45.9       321.6    51% : 49%
SQLPLAN         2.4    6.0        1,248       36.6       255.9    82% : 18%
EVENTS          2.3    5.6        1,152       33.8       236.3    47% : 53%
SQL             1.8    4.5          928       27.2       190.3    52% : 48%
RAC             0.6    1.5          320        9.4        65.6    50% : 50%
SQLTEXT         0.4    0.9          192        5.6        39.4    83% : 17%
ASH             0.4    0.9          192        5.6        39.4    50% : 50%
SQLBIND         0.3    0.6          128        3.8        26.3    50% : 50%

**********************************
(3b) Space usage within AWR Components (> 500K)
**********************************

COMPONENT        MB SEGMENT_NAME - % SPACE_USED                                           SEGMENT_TYPE
--------- --------- --------------------------------------------------------------------- ---------------
FIXED           2.0 WRH$_SYSSTAT_PK.WRH$_SYSSTA_1486195868_0                      -  66%  INDEX PARTITION
FIXED           0.9 WRH$_LATCH.WRH$_LATCH_1486195868_0                            -  80%  TABLE PARTITION
FIXED           0.8 WRH$_LATCH_PK.WRH$_LATCH_1486195868_0                         -  72%  INDEX PARTITION
FIXED           0.8 WRH$_SYSMETRIC_HISTORY_INDEX                                  -  26%  INDEX
FIXED           0.8 WRH$_SYSSTAT.WRH$_SYSSTA_1486195868_0                         -  85%  TABLE PARTITION
FIXED           0.6 WRH$_SYSMETRIC_HISTORY                                        -  19%  TABLE
SQLPLAN         2.0 WRH$_SQL_PLAN                                                 -  67%  TABLE
SQL             0.5 WRH$_SQLSTAT.WRH$_SQLSTA_1486195868_0                         -  81%  TABLE PARTITION

**********************************
(4) Space usage by non-AWR components (> 500K)
**********************************

COMPONENT        MB SEGMENT_NAME                                                          SEGMENT_TYPE
--------- --------- --------------------------------------------------------------------- ---------------
NON_AWR        51.2 MDSYS.SYS_LOB0000083702C00006$$                                       LOBSEGMENT
NON_AWR        42.2 SYS.SYS_LOB0000006421C00005$$                                         LOBSEGMENT
NON_AWR        23.2 APEX_040200.SYS_LOB0000088338C00007$$                                 LOBSEGMENT
NON_AWR        19.0 APEX_040200.WWV_FLOW_PAGE_PLUGS                                       TABLE
NON_AWR        17.2 SYS.SYS_LOB0000085557C00004$$                                         LOBSEGMENT
NON_AWR        11.0 APEX_040200.WWV_FLOW_STEP_ITEMS                                       TABLE
NON_AWR        10.0 APEX_040200.WWV_FLOW_TEMPLATES                                        TABLE
NON_AWR         9.2 APEX_040200.SYS_LOB0000088569C00009$$                                 LOBSEGMENT
NON_AWR         9.0 MDSYS.SDO_CS_SRS                                                      TABLE
NON_AWR         8.1 APEX_040200.SYS_LOB0000087756C00016$$                                 LOBSEGMENT
NON_AWR         8.0 SYS.HEATMAP                                                           SYSTEM STATISTI
                                                                                          CS

NON_AWR         7.2 SYS.SYS_LOB0000085542C00004$$                                         LOBSEGMENT
NON_AWR         6.0 APEX_040200.WWV_FLOW_STEP_PROCESSING                                  TABLE
NON_AWR         5.2 APEX_040200.SYS_LOB0000087810C00010$$                                 LOBSEGMENT
NON_AWR         5.1 SYS.SYS_LOB0000006421C00004$$                                         LOBSEGMENT
NON_AWR         4.0 SYSTEM.SYS_LOB0000001340C00009$$                                      LOBSEGMENT
NON_AWR         4.0 APEX_040200.WWV_FLOW_REGION_REPORT_COLUMN                             TABLE
NON_AWR         4.0 APEX_040200.WWV_FLOW_STEPS                                            TABLE
NON_AWR         3.2 SYS.SYS_LOB0000085537C00004$$                                         LOBSEGMENT
NON_AWR         3.2 APEX_040200.SYS_LOB0000088421C00019$$                                 LOBSEGMENT
NON_AWR         3.2 SYS.SYS_LOB0000085547C00004$$                                         LOBSEGMENT
NON_AWR         3.0 APEX_040200.WWV_FLOW_STEP_BUTTONS                                     TABLE
NON_AWR         3.0 APEX_040200.WWV_FLOW_WORKSHEET_COLUMNS                                TABLE
NON_AWR         3.0 APEX_040200.WWV_FLOW_INSTALL_SCRIPTS                                  TABLE
NON_AWR         3.0 APEX_040200.WWV_FLOW_PAGE_PLUG_TEMPLATES                              TABLE
NON_AWR         2.2 SYS.SYS_LOB0000085552C00004$$                                         LOBSEGMENT
NON_AWR         2.2 APEX_040200.SYS_LOB0000088585C00007$$                                 LOBSEGMENT
NON_AWR         2.2 APEX_040200.SYS_LOB0000087738C00022$$                                 LOBSEGMENT
NON_AWR         2.2 APEX_040200.SYS_LOB0000087738C00028$$                                 LOBSEGMENT
NON_AWR         2.2 APEX_040200.SYS_LOB0000087667C00011$$                                 LOBSEGMENT
NON_AWR         2.2 SYS.SYS_LOB0000085562C00004$$                                         LOBSEGMENT
NON_AWR         2.1 SYS.SYS_LOB0000008312C00038$$                                         LOBSEGMENT
NON_AWR         2.0 SYS.I_WRI$_OPTSTAT_HH_OBJ_ICOL_ST                                     INDEX
NON_AWR         2.0 APEX_040200.WWV_FLOW_WORKSHEETS                                       TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_FLASH_MAP_REGIONS                                TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_LIST_ITEMS                                       TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_LIST_TEMPLATES                                   TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_ROW_TEMPLATES                                    TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_STEP_VALIDATIONS                                 TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_STEP_ITEM_HELP                                   TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_STEP_ITEMS_U_NAME                                INDEX
NON_AWR         2.0 APEX_040200.WWV_FLOW_STEP_BRANCHES                                    TABLE
NON_AWR         2.0 APEX_040200.WWV_FLOW_PAGE_PLUGS_IDX_U1                                INDEX
NON_AWR         2.0 APEX_040200.WWV_FLOW_PAGE_PLUGS_IDX3                                  INDEX
NON_AWR         2.0 MDSYS.SDO_COORD_REF_SYS                                               TABLE

COMPONENT        MB SEGMENT_NAME                                                          SEGMENT_TYPE
--------- --------- --------------------------------------------------------------------- ---------------
NON_AWR         2.0 XDB.XDB$ELEMENT                                                       TABLE
NON_AWR         1.2 SYS.SYS_LOB0000008304C00004$$                                         LOBSEGMENT
NON_AWR         1.2 AUDSYS.SYS_LOB0000091784C00014$$.SYS_LOB_P186                         LOB PARTITION
NON_AWR         1.2 APEX_040200.SYS_LOB0000089973C00010$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000088446C00006$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000088432C00007$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000088387C00088$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000088332C00021$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000088326C00005$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000087738C00025$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000087700C00007$$                                 LOBSEGMENT
NON_AWR         1.2 APEX_040200.SYS_LOB0000087667C00024$$                                 LOBSEGMENT
NON_AWR         1.2 MDSYS.SYS_LOB0000086565C00003$$                                       LOBSEGMENT
NON_AWR         1.2 MDSYS.SYS_LOB0000084268C00003$$                                       LOBSEGMENT
NON_AWR         1.2 ORDDATA.SYS_LOB0000077885C00005$$                                     LOBSEGMENT
NON_AWR         1.2 ORDDATA.SYS_LOB0000077702C00005$$                                     LOBSEGMENT
NON_AWR         1.2 XDB.SYS_LOB0000019097C00025$$                                         LOBSEGMENT
NON_AWR         1.2 XDB.SYS_LOB0000019043C00023$$                                         LOBSEGMENT
NON_AWR         1.2 SYS.SYS_LOB0000006450C00009$$.SYS_LOB_P228                            LOB PARTITION
NON_AWR         1.1 SYS.SYS_LOB0000010986C00001$$                                         LOBSEGMENT
NON_AWR         1.1 APEX_040200.SYS_LOB0000088559C00009$$                                 LOBSEGMENT
NON_AWR         1.1 APEX_040200.SYS_LOB0000087999C00013$$                                 LOBSEGMENT
NON_AWR         1.1 SYS.SYS_LOB0000006450C00009$$.SYS_LOB_P353                            LOB PARTITION
NON_AWR         1.0 SYS.WRI$_OPTSTAT_OPR_TASKS                                            TABLE
NON_AWR         1.0 APEX_040200.WWV_FLOW_MESSAGES$                                        TABLE
NON_AWR         1.0 SYS.SYS$SERVICE_METRICS_TAB                                           TABLE
NON_AWR         1.0 SYS.I_WRI$_OPTSTAT_H_OBJ#_ICOL#_ST                                    INDEX
NON_AWR         1.0 SYS.LTXID_TRANS.LTXID_TRANS_1                                         TABLE PARTITION
NON_AWR         0.9 SYS.I_WRI$_OPTSTAT_HH_ST                                              INDEX
NON_AWR         0.9 APEX_040200.WWV_FLOW_STEP_ITEM_IDX3                                   INDEX
NON_AWR         0.9 APEX_040200.WWV_FLOW_LIST_OF_VALUES_DATA                              TABLE
NON_AWR         0.9 APEX_040200.WWV_FLOW_PAGE_PLUGS_PK                                    INDEX
NON_AWR         0.9 APEX_040200.WWV_FLOW_CAL_TEMPLATES                                    TABLE
NON_AWR         0.8 APEX_040200.WWV_FLOW_STEP_ITEMS_PK                                    INDEX
NON_AWR         0.8 APEX_040200.WWV_FLOW_PAGE_PLUGS_FK                                    INDEX
NON_AWR         0.8 APEX_040200.WWV_FLOW_STEP_ITEM_IDX4                                   INDEX
NON_AWR         0.8 APEX_040200.WWV_FLOW_STEP_BUTTONS_IDX2                                INDEX
NON_AWR         0.8 APEX_040200.WWV_FLOW_STEP_BUTTONS_FKIDX                               INDEX
NON_AWR         0.8 APEX_040200.WWV_FLOW_STEP_ITEM_IDX1                                   INDEX
NON_AWR         0.7 APEX_040200.WWV_FLOW_PAGE_PLUGS_IDX1                                  INDEX
NON_AWR         0.7 APEX_040200.WWV_FLOW_STEP_ITEM_IDX5                                   INDEX
NON_AWR         0.7 APEX_040200.WWV_FLOW_STEP_ITEM_IDX2                                   INDEX
NON_AWR         0.6 SYS.I_WRI$_OPTSTAT_OPR_TASKS_TGST                                     INDEX
NON_AWR         0.6 APEX_040200.WWV_FLOW_PAGE_DA_ACTIONS                                  TABLE
NON_AWR         0.6 APEX_040200.WWV_FLOW_WORKSHEET_COLUMNS_UK2                            INDEX
NON_AWR         0.6 APEX_040200.WWV_FLOW_MENU_OPTIONS                                     TABLE
NON_AWR         0.6 APEX_040200.WWV_FLOW_STEP_COMPUTATIONS                                TABLE

COMPONENT        MB SEGMENT_NAME                                                          SEGMENT_TYPE
--------- --------- --------------------------------------------------------------------- ---------------
NON_AWR         0.6 APEX_040200.WWV_FLOW_PAGE_PLUGS_IDX2                                  INDEX
NON_AWR         0.6 APEX_040200.WWV_FLOW_LISTS_OF_VALUES$                                 TABLE
NON_AWR         0.6 MDSYS.SDO_COORD_OPS                                                   TABLE
NON_AWR         0.6 SYS.AW_OBJ$                                                           TABLE
NON_AWR         0.6 XDB.XDB$COMPLEX_TYPE                                                  TABLE
NON_AWR         0.6 MDSYS.SDO_COORD_OP_PARAM_VALS                                         TABLE
NON_AWR         0.6 MDSYS.COORD_OP_PARA_VAL_PRIM                                          INDEX
NON_AWR         0.6 APEX_040200.WWV_FLOW_LOV_DATA_IDX1                                    INDEX

**********************************
(5a) AWR snapshots - last 50
**********************************

Total snapshots in DB 1486195868 Instance 1 = 2

      DBID    SNAP_ID  INST FLUSH_ELAPSED        ENDTM             STARTUP_TIME      STATUS ERRCNT
---------- ---------- ----- -------------------- ----------------- ----------------- ------ ------
1486195868         15     1 +00000 00:00:00.6    09:41:13 (01/26)  09:30:24 (01/26)       0      0
1486195868         16     1 +00000 00:00:00.3    11:00:18 (01/26)  09:30:24 (01/26)       0      0

**********************************
(5b) AWR snapshots with errors or invalid
**********************************

no rows selected

**********************************
(5c) AWR snapshots -- OLDEST Non-Baselined snapshots
**********************************

      DBID  INST    SNAP_ID ENDTM             STATUS ERROR_COUNT
---------- ----- ---------- ----------------- ------ -----------
1486195868     1         15 09:41:13 (01/26)       0           0

**********************************
(6) AWR Control Settings - interval, retention
**********************************

       DBID  LSNAPID LSPLITID LSNAPTIME      LPURGETIME      FLAG INTERVAL          RETENTION         VRSN
----------- -------- -------- -------------- -------------- ----- ----------------- ----------------- ----
 1486195868       16        0 01/26 11:00:19 01/26 10:00:11     2 +00000 01:00:00.0 +00008 00:00:00.0   11

**********************************
(7a) AWR Contents - row counts for each snapshots
**********************************

   SNAP_ID  INST        ASH        SQL      SQBND      FILES      SEGST     SYSEVT
---------- ----- ---------- ---------- ---------- ---------- ---------- ----------
        15     1          4         89        190          4         65         89
        16     1         12         96        243          4         66         90

**********************************
(7b) AWR Contents - average row counts per snapshot
**********************************

SNAP_COUNT  INST        ASH    SQLSTAT    SQLBIND      FILES    SEGSTAT   SYSEVENT
---------- ----- ---------- ---------- ---------- ---------- ---------- ----------
         2     1          8       92.5      216.5          4       65.5       89.5

**********************************
(7c) AWR total item counts - names, text, plans
**********************************

   SQLTEXT    SQLPLAN   SQLBMETA     SEGOBJ   DATAFILE   TEMPFILE
---------- ---------- ---------- ---------- ---------- ----------
       326       4983       1232        206          4          1

########################################################
(II) Advisor Framework Info
########################################################

**********************************
(1) Advisor Tasks - Last 50
**********************************

OWNER/ADVISOR  TASK_ID/NAME                     CREATED          EXE_DURATN EXE_CREATN HOW_C STATUS
-------------- -------------------------------- ---------------- ---------- ---------- ----- ------------
SYS/SQL Tuning 1/SYS_AUTO_SQL_TUNING_TASK       05:52:52 (07/07)                       AUTO
SYS/SPM Evolve 2/SYS_AUTO_SPM_EVOLVE_TASK       05:52:52 (07/07)                       AUTO
SYS/ADDM       42/ADDM:1486195868_1_16          11:00:19 (01/26)          0          0 AUTO  COMPLETED

**********************************
(2) Advisor Task - Oldest 5
**********************************

OWNER/ADVISOR  TASK_ID/NAME                     CREATED          EXE_DURATN EXE_CREATN HOW_C STATUS
-------------- -------------------------------- ---------------- ---------- ---------- ----- ------------
SYS/SQL Tuning 1/SYS_AUTO_SQL_TUNING_TASK       05:52:52 (07/07)                       AUTO
SYS/SPM Evolve 2/SYS_AUTO_SPM_EVOLVE_TASK       05:52:52 (07/07)                       AUTO
SYS/ADDM       42/ADDM:1486195868_1_16          11:00:19 (01/26)          0          0 AUTO  COMPLETED

**********************************
(3) Advisor Tasks With Errors - Last 50
**********************************

no rows selected

########################################################
(III) ASH Usage Info
########################################################

**********************************
(1a) ASH histogram (past 3 days)
**********************************

NUM_ACTIVE_SESSIONS   NUM_SAMPLES
-------------------- ------------
0000 - 0004                    12

**********************************
(1b) ASH histogram (past 1 day)
**********************************

NUM_ACTIVE_SESSIONS   NUM_SAMPLES
-------------------- ------------
0000 - 0004                    12

**********************************
(2a) ASH details (past 3 days)
**********************************

INST MIN_TIME         MAX_TIME          NUM_SAMPLES     NUM_ROWS AVG_ACTIVE
---- ---------------- ---------------- ------------ ------------ ----------
   1 09:41:09 (01/26) 10:45:00 (01/26)          383           12       0.03

**********************************
(2b) ASH details (past 1 day)
**********************************

INST MIN_TIME         MAX_TIME          NUM_SAMPLES     NUM_ROWS AVG_ACTIVE
---- ---------------- ---------------- ------------ ------------ ----------
   1 09:41:09 (01/26) 10:45:00 (01/26)          383           12       0.03

**********************************
(2c) ASH sessions (Fg Vs Bg) (past 1 day across all instances in RAC)
**********************************

Foreground %            8.3
Background %           91.7
MMNL %                  0.0

End of Report
Report written to awrinfo.txt

分析ADG網卡流量出現規律性毛刺現象