v$session v$session_wait (在10g里功能被整合,凑合算1个吧.)

v$process

v$sql

v$sqltext

v$bh (更宁愿是x$bh)

v$lock

v$latch_children

v$sysstat

v$system_event

按组分的几组重要的性能视图

1。System 的 over view

v$sysstat , v$system_event , v$parameter

2。某个session 的当前情况

v$process , v$session , v$session_wait ,v$session_event , v$sesstat

3。SQL 的情况

v$sql , v$sqlarea , v$SQL_PLAN , V$SQL_PLAN_STATISTICS, v$sqltext_with_newlines

3. Latch / lock /ENQUEUE

v$latch , v$latch_children , v$latch_holder , v$lock ,V$ENQUEUE_STAT ,V$ENQUEUE_LOCK

4. IO 方面的

v$segstat , v$filestat , v$tempstat ,v$datafile , v$tempfile

5.shared pool / Library cache

v$Librarycache , v$rowcache , x$ksmsp

6.几个advice也不错

v$db_cache_advice , v$PGA_TARGET_ADVICE, v$SHARED_POOL_ADVICE