分析SQL Trace文件各项的含义
OVERALL TOTALS FOR ALL RECURSIVE STATEMENTS
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 345 0.17 0.90 22 730 0 0
Execute 679 0.20 2.68 72 1416 451 110
Fetch 1408 0.07 1.41 68 2388 1 1039
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 2432 0.45 5.00 162 4534 452 1149
其中各项含义如下:
********************************************************************************
count = number of times OCI procedure was executed
cpu = cpu time in seconds executing
elapsed = elapsed time in seconds executing
disk = number of physical reads of buffers from disk
query = number of buffers gotten for consistent read
current = number of buffers gotten in current mode (usually for update)
rows = number of rows processed by the fetch or execute call