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php连接oracle很慢是什么原因_通过DB LINK插入速度很慢的问题

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DB2上做的10046的Trace，內(nèi)容截圖如下：

*** 2011-01-13 11:11:24.805

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 1035392 driver id=675562835 #bytes=33 p3=0 obj#=-1 tim=1294888284805778

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 126 driver id=675562835 #bytes=251 p3=0 obj#=-1 tim=1294888284806808

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 379 driver id=675562835 #bytes=141 p3=0 obj#=-1 tim=1294888284807992

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 400 driver id=675562835 #bytes=2 p3=0 obj#=-1 tim=1294888284809172

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 203813 driver id=675562835 #bytes=61 p3=0 obj#=-1 tim=1294888285013777

*** 2011-01-13 11:11:26.305

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 1291298 driver id=675562835 #bytes=85 p3=0 obj#=-1 tim=1294888286305913

*** 2011-01-13 11:11:27.334

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 1027306 driver id=675562835 #bytes=9 p3=0 obj#=-1 tim=1294888287334022

*** 2011-01-13 11:11:28.558

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 1223313 driver id=675562835 #bytes=89 p3=0 obj#=-1 tim=1294888288558204

*** 2011-01-13 11:11:29.842

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 1283486 driver id=675562835 #bytes=33 p3=0 obj#=-1 tim=1294888289842497

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 374 driver id=675562835 #bytes=138 p3=0 obj#=-1 tim=1294888289843828

*** 2011-01-13 11:11:30.658

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 813941 driver id=675562835 #bytes=163 p3=0 obj#=-1 tim=1294888290658516

*** 2011-01-13 11:11:31.942

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 1283404 driver id=675562835 #bytes=227 p3=0 obj#=-1 tim=1294888291942726

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 231 driver id=675562835 #bytes=119 p3=0 obj#=-1 tim=1294888291943780

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 8 driver id=675562835 #bytes=173 p3=0 obj#=-1 tim=1294888291944547

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 10 driver id=675562835 #bytes=46 p3=0 obj#=-1 tim=1294888291945329

WAIT #3068448836: nam='SQL*Net more data from dblink' ela= 389 driver id=675562835 #bytes=55 p3=0 obj#=-1 tim=1294888291946474

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