{"id":98,"date":"2011-02-04T09:04:58","date_gmt":"2011-02-04T08:04:58","guid":{"rendered":"http:\/\/jal-bs.de\/blog\/?p=98"},"modified":"2013-08-02T09:25:03","modified_gmt":"2013-08-02T07:25:03","slug":"oracle-automatic-performance-statistics","status":"publish","type":"post","link":"https:\/\/jal-bs.de\/blog\/?p=98","title":{"rendered":"Oracle Automatic Performance Statistics"},"content":{"rendered":"<p><strong>Oracle Automatic Performance Statistics:<\/strong><\/p>\n<p>Oracle generiert und speichert Statistiken in vielf\u00e4ltiger Form.<\/p>\n<p>\u00dcber V$-Views, Automatic Workload Repository (AWR), active session history (ASH) sind diese Informationen abrufbar.<\/p>\n<p>Die wichtigsten Database\/OS Statistiken sind:<br \/>\nwait events, time model statistics, active session history, system and session Statistics, CPU-, Memory-, I\/O-, network-Statistics.<\/p>\n<p><strong>Handling AWR:<\/strong><\/p>\n<p>Das AWR ist Snapshot basierend. St\u00fcndlich wird ein Snapshot gezogen und im Repository f\u00fcr 8 Tage gespeichert.<\/p>\n<p>Mittels dem Package \u201eDBMS_WORKLOAD_REPOSITORY\u201d wird das AWR administriert.<\/p>\n<p>Erzeugen eines AWR-Reports (Snapshot bezogen):<\/p>\n<p>@$ORACLE_HOME\/rdbms\/admin\/awrrpt.sql<\/p>\n<p>Erzeugen eines AWR-Reports (SQL bezogen):<\/p>\n<p>@$ORACLE_HOME\/rdbms\/admin\/awrsqrpt.sql<\/p>\n<p>Erzeugen eines AWR-Vergleichs-Reports (Snapshot bezogen):<\/p>\n<p>@$ORACLE_HOME\/rdbms\/admin\/awrddrpt.sql<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>Handling ASH:<\/strong><\/p>\n<p>ASH Reports finden meist Anwendung, wenn es sich um ein \u201efl\u00fcchtiges\u201c Problem.<\/p>\n<p>Erzeugen eines ASH-Reports<\/p>\n<p>@$ORACLE_HOME\/rdbms\/admin\/ashrpt.sql<\/p>\n<p>Angezeigt werden u. a.:<\/p>\n<p>\u00d8\u00a0 Top Events<\/p>\n<p>\u00d8\u00a0 Top SQL<\/p>\n<p>\u00d8\u00a0 Top PL\/SQL<\/p>\n<p>\u00d8\u00a0 Top Java<\/p>\n<p>\u00d8\u00a0 Top Sessions<\/p>\n<p>\u00d8\u00a0 Top Objects\/Files\/Latches<\/p>\n<p>\u00d8\u00a0 Activity Over Time<\/p>\n<p>Mehr zu diesem Thema ist im Oracle Database Performance Tuning Guide unter Kapitel 5 &#8222;Automatice Performance Statistics&#8220; zu finden.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oracle Automatic Performance Statistics: Oracle generiert und speichert Statistiken in vielf\u00e4ltiger Form. \u00dcber V$-Views, Automatic Workload Repository (AWR), active session history (ASH) sind diese Informationen abrufbar. Die wichtigsten Database\/OS Statistiken sind: wait events, time model statistics, active session history, system &hellip; <a href=\"https:\/\/jal-bs.de\/blog\/?p=98\">Weiterlesen <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[3,10],"_links":{"self":[{"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/98"}],"collection":[{"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=98"}],"version-history":[{"count":7,"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/98\/revisions"}],"predecessor-version":[{"id":338,"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/98\/revisions\/338"}],"wp:attachment":[{"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jal-bs.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}