这是STATSPACK收集统计信息，如何分析结果，谢谢！ STATSPACK report forDB Name DB Id Instance Inst Num Release RAC Host ------------ ----------- ------------ -------- ----------- --- ---------------- SGX 883483403 sgx 1 10.1.0.2.0 NO OPPO-ZHANGZZ Snap Id Snap Time Sessions Curs/Sess Comment --------- ------------------ -------- --------- ------------------- Begin Snap: 1 24-11? -08 14:24:00 29 15.9 End Snap: 2 24-11? -08 14:25:14 30 15.2 Elapsed: 1.23 (mins)Cache Sizes (end) ~~~~~~~~~~~~~~~~~ Buffer Cache: 24M Std Block Size: 8K Shared Pool Size: 80M Log Buffer: 256KLoad Profile ~~~~~~~~~~~~ Per Second Per Transaction --------------- --------------- Redo size: 24,688.49 182,694.80 Logical reads: 147.07 1,088.30 Block changes: 148.01 1,095.30 Physical reads: 1.12 8.30 Physical writes: 3.81 28.20 User calls: 1.95 14.40 Parses: 2.55 18.90 Hard parses: 0.47 3.50 Sorts: 1.54 11.40 Logons: 0.05 0.40 Executes: 11.99 88.70 Transactions: 0.14 % Blocks changed per Read: 100.64 Recursive Call %: 98.75 Rollback per transaction %: 0.00 Rows per Sort: 79.21Instance Efficiency Percentages (Target 100%) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 100.00 Redo NoWait %: 100.00 Buffer Hit %: 99.24 In-memory Sort %: 100.00 Library Hit %: 94.10 Soft Parse %: 81.48 Execute to Parse %: 78.69 Latch Hit %: 100.00 Parse CPU to Parse Elapsd %: 100.00 % Non-Parse CPU: 99.44 Shared Pool Statistics Begin End ------ ------ Memory Usage %: 93.35 93.01 % SQL with executions>1: 75.87 77.54 % Memory for SQL w/exec>1: 61.08 65.50Top 5 Timed Events ~~~~~~~~~~~~~~~~~~ % Total Event Waits Time (s) Call Time -------------------------------------------- ------------ ----------- --------- Queue Monitor Task Wait 1 5 36.58 class slave wait 1 5 36.58 CPU time 2 12.72 control file sequential read 595 1 4.38 db file parallel write 75 0 2.93 ------------------------------------------------------------- Wait Events DB/Inst: SGX/sgx Snaps: 1-2 -> s - second -> cs - centisecond - 100th of a second -> ms - millisecond - 1000th of a second -> us - microsecond - 1000000th of a second -> ordered by wait time desc, waits desc (idle events last)
STATSPACK report forDB Name DB Id Instance Inst Num Release RAC Host
------------ ----------- ------------ -------- ----------- --- ----------------
SGX 883483403 sgx 1 10.1.0.2.0 NO OPPO-ZHANGZZ Snap Id Snap Time Sessions Curs/Sess Comment
--------- ------------------ -------- --------- -------------------
Begin Snap: 1 24-11? -08 14:24:00 29 15.9
End Snap: 2 24-11? -08 14:25:14 30 15.2
Elapsed: 1.23 (mins)Cache Sizes (end)
~~~~~~~~~~~~~~~~~
Buffer Cache: 24M Std Block Size: 8K
Shared Pool Size: 80M Log Buffer: 256KLoad Profile
~~~~~~~~~~~~ Per Second Per Transaction
--------------- ---------------
Redo size: 24,688.49 182,694.80
Logical reads: 147.07 1,088.30
Block changes: 148.01 1,095.30
Physical reads: 1.12 8.30
Physical writes: 3.81 28.20
User calls: 1.95 14.40
Parses: 2.55 18.90
Hard parses: 0.47 3.50
Sorts: 1.54 11.40
Logons: 0.05 0.40
Executes: 11.99 88.70
Transactions: 0.14 % Blocks changed per Read: 100.64 Recursive Call %: 98.75
Rollback per transaction %: 0.00 Rows per Sort: 79.21Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Hit %: 99.24 In-memory Sort %: 100.00
Library Hit %: 94.10 Soft Parse %: 81.48
Execute to Parse %: 78.69 Latch Hit %: 100.00
Parse CPU to Parse Elapsd %: 100.00 % Non-Parse CPU: 99.44 Shared Pool Statistics Begin End
------ ------
Memory Usage %: 93.35 93.01
% SQL with executions>1: 75.87 77.54
% Memory for SQL w/exec>1: 61.08 65.50Top 5 Timed Events
~~~~~~~~~~~~~~~~~~ % Total
Event Waits Time (s) Call Time
-------------------------------------------- ------------ ----------- ---------
Queue Monitor Task Wait 1 5 36.58
class slave wait 1 5 36.58
CPU time 2 12.72
control file sequential read 595 1 4.38
db file parallel write 75 0 2.93
-------------------------------------------------------------
Wait Events DB/Inst: SGX/sgx Snaps: 1-2
-> s - second
-> cs - centisecond - 100th of a second
-> ms - millisecond - 1000th of a second
-> us - microsecond - 1000000th of a second
-> ordered by wait time desc, waits desc (idle events last)
Total Wait wait Waits
Event Waits Timeouts Time (s) (ms) /txn
---------------------------- ------------ ---------- ---------- ------ --------
Queue Monitor Task Wait 1 0 5 5121 0.1
class slave wait 1 1 5 5120 0.1
control file sequential read 595 0 1 1 59.5
db file parallel write 75 0 0 5 7.5
db file sequential read 91 0 0 4 9.1
log buffer space 5 0 0 56 0.5
log file parallel write 23 0 0 11 2.3
control file parallel write 24 0 0 1 2.4
process startup 1 0 0 8 0.1
log file sync 6 0 0 1 0.6
SQL*Net break/reset to clien 4 0 0 0 0.4
SQL*Net message from client 128 0 361 2822 12.8
jobq slave wait 72 70 221 3071 7.2
virtual circuit status 3 3 90 30004 0.3
queue messages 15 15 77 5120 1.5
wait for unread message on b 72 72 74 1025 7.2
Queue Monitor Wait 3 2 61 20480 0.3
SQL*Net message to client 128 0 0 0 12.8
-------------------------------------------------------------
Background Wait Events DB/Inst: SGX/sgx Snaps: 1-2
-> ordered by wait time desc, waits desc (idle events last) Avg
Total Wait wait Waits
Event Waits Timeouts Time (s) (ms) /txn
---------------------------- ------------ ---------- ---------- ------ --------
Queue Monitor Task Wait 1 0 5 5121 0.1
class slave wait 1 1 5 5120 0.1
db file parallel write 71 0 0 5 7.1
log file parallel write 25 0 0 1 2.5
control file parallel write 24 0 0 1 2.4
process startup 1 0 0 8 0.1
rdbms ipc message 240 207 518 2157 24.0
Queue Monitor Wait 3 2 61 20480 0.3
-------------------------------------------------------------
Wait Event Histogram DB/Inst: SGX/sgx Snaps: 1-2
-> ordered by event (idle events last)
你现在系统很慢吗？加大间隔时间，然后把完整报告的txt文件上传成附件吧。