oracle cpu usage
SELECT PARSING_SCHEMA_NAME, MODULE, SQL_ID,
round(((CPU_TIME / 1e6) / 60), 2) AS CPU_TIME,
EXECUTIONS, ROWS_PROCESSED, DISK_READS, FIRST_LOAD_TIME,
LAST_LOAD_TIME, OPTIMIZER_COST, SQL_FULLTEXT
FROM V$SQLAREA
WHERE PARSING_SCHEMA_NAME IN ('schema_name')
ORDER BY PARSING_SCHEMA_NAME, CPU_TIME DESC;