{"id":192,"date":"2011-10-09T23:58:15","date_gmt":"2011-10-09T15:58:15","guid":{"rendered":"https:\/\/yangtingkun.net\/?p=192"},"modified":"2011-10-10T09:02:48","modified_gmt":"2011-10-10T01:02:48","slug":"%e7%b3%bb%e7%bb%9f%e7%bb%9f%e8%ae%a1%e4%bf%a1%e6%81%af%e7%9a%84%e4%bf%9d%e5%ad%98%e4%bd%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/yangtingkun.net\/?p=192","title":{"rendered":"\u7cfb\u7edf\u7edf\u8ba1\u4fe1\u606f\u7684\u4fdd\u5b58\u4f4d\u7f6e"},"content":{"rendered":"<p>\u4ece9i\u5f00\u59cb\uff0cOracle\u5c31\u63d0\u4f9b\u4e86\u6536\u96c6\u7cfb\u7edf\u7edf\u8ba1\u4fe1\u606f\u7684\u80fd\u529b\uff0c\u4e0d\u8fc7\u76f4\u523011.2\u7684\u6587\u6863\u4e2d\uff0cOracle\u90fd\u4ece\u6765\u6ca1\u6709\u63d0\u8fc7\u7edf\u8ba1\u4fe1\u606f\u53ef\u4ee5\u4ece\u54ea\u4e2a\u89c6\u56fe\u4e2d\u83b7\u53d6\u3002<br \/>\n\u867d\u7136Oracle\u63d0\u4f9b\u4e86\u4e00\u4e2aGET_SYSTEM_STATS\u7684\u529f\u80fd\uff0c\u4f46\u662f\u4f7f\u7528\u975e\u5e38\u4e0d\u65b9\u4fbf\uff0c\u4e0d\u5982\u76f4\u63a5\u67e5\u770b\u89c6\u56fe\u90a3\u4e48\u7b80\u5355\u76f4\u89c2\u3002<br \/>\n\u65e2\u7136Oracle\u81ea\u5df1\u6ca1\u6709\u8bf4\u660e\uff0c\u53ef\u4ee5\u901a\u8fc7TRACE\u7684\u65b9\u5f0f\u6765\u83b7\u53d6Oracle\u5c06\u7edf\u8ba1\u4fe1\u606f\u5b58\u50a8\u5230\u54ea\u4e2a\u57fa\u8868\u4e2d\uff1a<\/p>\n<pre lang='SQL'>SQL> ALTER SESSION SET EVENTS '10046 TRACE NAME CONTEXT FOREVER, LEVEL 12';\r\n\u4f1a\u8bdd\u5df2\u66f4\u6539\u3002\r\nSQL> EXEC DBMS_STATS.GATHER_SYSTEM_STATS\r\nPL\/SQL \u8fc7\u7a0b\u5df2\u6210\u529f\u5b8c\u6210\u3002\r\nSQL> ALTER SESSION SET EVENTS '10046 TRACE NAME CONTEXT OFF';\r\n\u4f1a\u8bdd\u5df2\u66f4\u6539\u3002\r\nSQL> SELECT SPID \r\n  2  FROM V$SESSION S, V$PROCESS P\r\n  3  WHERE S.PADDR = P.ADDR\r\n  4  AND SID IN \r\n  5  (SELECT SID\r\n  6  FROM V$MYSTAT\r\n  7  WHERE ROWNUM = 1);\r\nSPID\r\n------------\r\n17816<\/pre>\n<p>\u67e5\u770b\u5bf9\u5e94\u7684TRACE\u4fe1\u606f\uff1a<\/p>\n<pre lang='SQL'>*** 2011-10-10 08:32:39.008\r\n*** ACTION NAME:() 2011-10-10 08:32:38.847\r\n*** MODULE NAME:(SQL*Plus) 2011-10-10 08:32:38.847\r\n*** SERVICE NAME:(SYS$USERS) 2011-10-10 08:32:38.847\r\n*** SESSION ID:(144.3) 2011-10-10 08:32:38.847\r\nWAIT #9: nam='SQL*Net message to client' ela= 4 driver id=1111838976 #bytes=1 p3=0 obj#=358 tim=68276628744\r\nWAIT #9: nam='SQL*Net message from client' ela= 271 driver id=1111838976 #bytes=1 p3=0 obj#=358 tim=68276853358\r\n=====================\r\n.\r\n.\r\n.\r\n=====================\r\nPARSING IN CURSOR #7 len=44 dep=0 uid=57 oct=47 lid=57 tim=68330942448 hv=3102768059 ad='242ca1cc'\r\nBEGIN DBMS_STATS.GATHER_SYSTEM_STATS; END;\r\nEND OF STMT\r\nPARSE #7:c=0,e=2137,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=1,tim=68330942444\r\nBINDS #7:\r\n=====================\r\nPARSING IN CURSOR #8 len=80 dep=1 uid=0 oct=3 lid=0 tim=68331143167 hv=374192777 ad='2849d9a0'\r\nSELECT \/*+ rule *\/ VALUE FROM V$PARAMETER WHERE UPPER(NAME) = 'STATISTICS_LEVEL'\r\nEND OF STMT\r\nPARSE #8:c=0,e=21803,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=3,tim=68331143162\r\nBINDS #8:\r\nEXEC #8:c=15601,e=33726,p=0,cr=0,cu=0,mis=0,r=0,dep=1,og=3,tim=68331248401\r\nFETCH #8:c=0,e=8267,p=0,cr=0,cu=0,mis=0,r=1,dep=1,og=3,tim=68331272092\r\n=====================\r\n.\r\n.\r\n.\r\n=====================\r\nPARSING IN CURSOR #10 len=56 dep=1 uid=57 oct=7 lid=57 tim=68354281222 hv=311428414 ad='2853a860'\r\nDELETE FROM SYS.AUX_STATS$ WHERE SNAME = 'SYSSTATS_INFO'\r\nEND OF STMT\r\nPARSE #10:c=31200,e=117964,p=12,cr=157,cu=0,mis=1,r=0,dep=1,og=1,tim=68354281219\r\nBINDS #10:\r\nEXEC #10:c=0,e=24330,p=0,cr=1,cu=8,mis=0,r=4,dep=1,og=1,tim=68354305618\r\n=====================\r\nPARSING IN CURSOR #9 len=73 dep=1 uid=57 oct=2 lid=57 tim=68354305942 hv=454001916 ad='2853a638'\r\nINSERT INTO SYS.AUX_STATS$ VALUES ('SYSSTATS_INFO', 'STATUS', NULL, :B1 )\r\nEND OF STMT\r\nPARSE #9:c=0,e=187,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=1,tim=68354305940\r\nBINDS #9:\r\nkkscoacd\r\nBind#0\r\noacdty=01 mxl=32(30) mxlc=00 mal=00 scl=00 pre=00\r\noacflg=13 fl2=206001 frm=01 csi=852 siz=32 off=0\r\nkxsbbbfp=0565dbe4 bln=32 avl=09 flg=09\r\nvalue=\"COMPLETED\"\r\nWAIT #9: nam='db file sequential read' ela= 18196 file#=1 block#=4537 blocks=1 obj#=572 tim=68354324705\r\nEXEC #9:c=0,e=19012,p=1,cr=1,cu=3,mis=1,r=1,dep=1,og=1,tim=68354325026\r\n=====================\r\nPARSING IN CURSOR #11 len=73 dep=1 uid=57 oct=2 lid=57 tim=68354325455 hv=3821777836 ad='2853a410'\r\nINSERT INTO SYS.AUX_STATS$ VALUES ('SYSSTATS_INFO', 'DSTART', NULL, :B1 )\r\nEND OF STMT\r\nPARSE #11:c=0,e=304,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=1,tim=68354325452\r\nBINDS #11:\r\nkkscoacd\r\nBind#0\r\noacdty=01 mxl=32(30) mxlc=00 mal=00 scl=00 pre=00\r\noacflg=13 fl2=206001 frm=01 csi=852 siz=32 off=0\r\nkxsbbbfp=0565dc04 bln=32 avl=16 flg=09\r\nvalue=\"10-10-2011 08:33\"\r\nEXEC #11:c=0,e=657,p=0,cr=1,cu=3,mis=1,r=1,dep=1,og=1,tim=68354326236\r\n=====================\r\nPARSING IN CURSOR #12 len=72 dep=1 uid=57 oct=2 lid=57 tim=68354326455 hv=912777027 ad='2853a1e8'\r\nINSERT INTO SYS.AUX_STATS$ VALUES ('SYSSTATS_INFO', 'DSTOP', NULL, :B1 )\r\nEND OF STMT\r\nPARSE #12:c=0,e=148,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=1,tim=68354326452\r\nBINDS #12:\r\nkkscoacd\r\nBind#0\r\noacdty=01 mxl=32(30) mxlc=00 mal=00 scl=00 pre=00\r\noacflg=13 fl2=206001 frm=01 csi=852 siz=32 off=0\r\nkxsbbbfp=0565dc24 bln=32 avl=16 flg=09\r\nvalue=\"10-10-2011 08:33\"\r\nEXEC #12:c=0,e=419,p=0,cr=1,cu=3,mis=1,r=1,dep=1,og=1,tim=68354326949\r\n=====================\r\n.\r\n.\r\n.\r\n=====================\r\nPARSING IN CURSOR #26 len=6 dep=1 uid=57 oct=44 lid=57 tim=68354566045 hv=255718823 ad='0'\r\nCOMMIT\r\nEND OF STMT\r\nPARSE #26:c=0,e=11,p=0,cr=0,cu=0,mis=0,r=0,dep=1,og=0,tim=68354566043\r\nXCTEND rlbk=0, rd_only=0\r\nEXEC #26:c=0,e=178,p=0,cr=0,cu=1,mis=0,r=0,dep=1,og=0,tim=68354566282\r\nEXEC #7:c=530404,e=23458716,p=42,cr=578,cu=75,mis=0,r=1,dep=0,og=1,tim=68354566323\r\nWAIT #7: nam='log file sync' ela= 855 buffer#=1807 sync scn=1998734 p3=0 obj#=-1 tim=68354567211\r\nWAIT #7: nam='SQL*Net message to client' ela= 1 driver id=1111838976 #bytes=1 p3=0 obj#=-1 tim=68354567508\r\nWAIT #7: nam='SQL*Net message from client' ela= 333 driver id=1111838976 #bytes=1 p3=0 obj#=-1 tim=68354567875\r\n=====================\r\nPARSING IN CURSOR #27 len=52 dep=0 uid=57 oct=47 lid=57 tim=68354567976 hv=1029988163 ad='28480080'\r\nBEGIN DBMS_OUTPUT.GET_LINES(:LINES, :NUMLINES); END;\r\nEND OF STMT\r\nPARSE #27:c=0,e=29,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,tim=68354567974\r\nBINDS #27:\r\nkkscoacd\r\nBind#0\r\noacdty=123 mxl=4000(4000) mxlc=00 mal=00 scl=00 pre=00\r\noacflg=00 fl2=1000000 frm=00 csi=00 siz=4000 off=0\r\nkxsbbbfp=056e555c bln=4000 avl=00 flg=15\r\nBind#1\r\noacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00\r\noacflg=01 fl2=1000000 frm=00 csi=00 siz=24 off=0\r\nkxsbbbfp=0ab6bde8 bln=22 avl=22 flg=05\r\nvalue=###\r\nAn invalid number has been seen.Memory contents are :\r\nDump of memory from 0x0AB6BDE8 to 0x0AB6BDFE\r\nAB6BDE0 000010C1 00000000 [........]\r\nAB6BDF0 00000000 00000000 00000000 00000000 [................]\r\nWAIT #27: nam='SQL*Net message to client' ela= 1 driver id=1111838976 #bytes=1 p3=0 obj#=-1 tim=68354568397\r\nEXEC #27:c=0,e=416,p=0,cr=3,cu=0,mis=0,r=1,dep=0,og=1,tim=68354568514\r\n*** 2011-10-10 08:34:55.278\r\nWAIT #27: nam='SQL*Net message from client' ela= 58488791 driver id=1111838976 #bytes=1 p3=0 obj#=-1 tim=68413057389\r\n=====================\r\nPARSING IN CURSOR #25 len=55 dep=0 uid=57 oct=42 lid=57 tim=68413057883 hv=524428051 ad='0'\r\nALTER SESSION SET EVENTS '10046 TRACE NAME CONTEXT OFF'\r\nEND OF STMT\r\nPARSE #25:c=0,e=132,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=0,tim=68413057880\r\nEXEC #25:c=0,e=163,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=0,tim=68413058129<\/pre>\n<p>\u53ef\u4ee5\u4eceTRACE\u7ed3\u679c\u5f88\u5bb9\u6613\u7684\u5f97\u5230\uff0cOracle\u5c06\u7edf\u8ba1\u4fe1\u606f\u653e\u5165\u4e86SYS.AUX_STATS$\u8868\u4e2d\u3002<br \/>\n\u53ef\u60dc\u7684\u662f\uff0cOracle\u4f3c\u4e4e\u5e76\u6ca1\u6709\u63d0\u4f9b\u4e00\u4e2a\u89c6\u56fe\u7ed9\u6240\u6709\u7684\u7528\u6237\u8fdb\u884c\u8bbf\u95ee\uff0c\u56e0\u6b64\u53ea\u6709\u6743\u9650\u7528\u6237\u624d\u80fd\u76f4\u63a5\u8bbf\u95ee\u8fd9\u4e2a\u5185\u90e8\u8868\uff1a<\/p>\n<pre lang='SQL'>SQL> SELECT * FROM SYS.AUX_STATS$;\r\nSNAME                PNAME                PVAL1 PVAL2\r\n-------------------- --------------- ---------- ------------------------\r\nSYSSTATS_INFO        STATUS                     COMPLETED\r\nSYSSTATS_INFO        DSTART                     09-10-2011 08:33\r\nSYSSTATS_INFO        DSTOP                      09-10-2011 08:33\r\nSYSSTATS_INFO        FLAGS                    1\r\nSYSSTATS_MAIN        CPUSPEEDNW        1555.208\r\nSYSSTATS_MAIN        IOSEEKTIM           11.312\r\nSYSSTATS_MAIN        IOTFRSPEED            4096\r\nSYSSTATS_MAIN        SREADTIM\r\nSYSSTATS_MAIN        MREADTIM\r\nSYSSTATS_MAIN        CPUSPEED\r\nSYSSTATS_MAIN        MBRC\r\nSYSSTATS_MAIN        MAXTHR\r\nSYSSTATS_MAIN        SLAVETHR\r\n\u5df2\u9009\u62e913\u884c\u3002<\/pre>\n<p>\u800c\u5982\u679c\u4f7f\u7528DBMS_STATS.GET_SYSTEM_STATS\u5219\u663e\u7136\u8981\u9ebb\u70e6\u5f97\u591a\uff1a<\/p>\n<pre lang='SQL'>SQL> SET SERVEROUT ON SIZE 100000\r\nSQL> DECLARE\r\n  2   V_STATUS VARCHAR2(30);\r\n  3   V_DSTART DATE;\r\n  4   V_DSTOP DATE;\r\n  5   V_PVALUE NUMBER;\r\n  6  BEGIN\r\n  7   DBMS_STATS.GET_SYSTEM_STATS(V_STATUS, V_DSTART, V_DSTOP, 'cpuspeednw', V_PVALUE);\r\n  8   DBMS_OUTPUT.PUT_LINE(RPAD('STATUS', 31) || RPAD('START', 24) || RPAD('STOP', 24) || 'VALUE');\r\n  9   DBMS_OUTPUT.PUT_LINE(RPAD(V_STATUS, 31) || RPAD(TO_CHAR(V_DSTART, 'YYYY-MM-DD HH24:MI:SS'), 24)\r\n 10    || RPAD(TO_CHAR(V_DSTOP, 'YYYY-MM-DD HH24:MI:SS'), 24) || V_PVALUE);\r\n 11  END;\r\n 12  \/  \r\nSTATUS                         START                   STOP                    VALUE\r\nCOMPLETED                      2011-10-09 08:33:00     2011-10-09 08:33:00     1555.208\r\nPL\/SQL \u8fc7\u7a0b\u5df2\u6210\u529f\u5b8c\u6210\u3002<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece9i\u5f00\u59cb\uff0cOracle\u5c31\u63d0\u4f9b\u4e86\u6536\u96c6\u7cfb\u7edf\u7edf\u8ba1\u4fe1\u606f\u7684\u80fd\u529b\uff0c\u4e0d\u8fc7\u76f4\u523011.2\u7684\u6587\u6863\u4e2d\uff0cOracle\u90fd\u4ece\u6765\u6ca1\u6709\u63d0\u8fc7\u7edf\u8ba1\u4fe1\u606f\u53ef\u4ee5\u4ece\u54ea\u4e2a\u89c6\u56fe\u4e2d\u83b7\u53d6\u3002 \u867d\u7136Oracle\u63d0\u4f9b\u4e86\u4e00\u4e2aGET_SYSTEM_STATS\u7684\u529f\u80fd\uff0c\u4f46\u662f\u4f7f\u7528\u975e\u5e38\u4e0d\u65b9\u4fbf\uff0c\u4e0d\u5982\u76f4\u63a5\u67e5\u770b\u89c6\u56fe\u90a3\u4e48\u7b80\u5355\u76f4\u89c2\u3002 \u65e2\u7136Oracle\u81ea\u5df1\u6ca1\u6709\u8bf4\u660e\uff0c\u53ef\u4ee5\u901a\u8fc7TRACE\u7684\u65b9\u5f0f\u6765\u83b7\u53d6Oracle\u5c06\u7edf\u8ba1\u4fe1\u606f\u5b58\u50a8\u5230\u54ea\u4e2a\u57fa\u8868\u4e2d\uff1a SQL> ALTER SESSION SET EVENTS &#8216;10046 TRACE NAME CONTEXT FOREVER, LEVEL 12&#8217;; \u4f1a\u8bdd\u5df2\u66f4\u6539\u3002 SQL> EXEC DBMS_STATS.GATHER_SYSTEM_STATS PL\/SQL \u8fc7\u7a0b\u5df2\u6210\u529f\u5b8c\u6210\u3002 SQL> ALTER SESSION SET EVENTS &#8216;10046 TRACE NAME CONTEXT OFF&#8217;; \u4f1a\u8bdd\u5df2\u66f4\u6539\u3002 SQL> SELECT SPID 2 FROM V$SESSION S, V$PROCESS &hellip; <a href=\"https:\/\/yangtingkun.net\/?p=192\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[134,133,132],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2yiY3-36","_links":{"self":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/192"}],"collection":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=192"}],"version-history":[{"count":1,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/192\/revisions"}],"predecessor-version":[{"id":193,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/192\/revisions\/193"}],"wp:attachment":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=192"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=192"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}