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<DIV><SPAN class=204521215-29092008><FONT face=Arial 
size=2>All,</FONT></SPAN></DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial size=2>I wrote a server 
which listens to the market data and generates alerts based on some 
conditions.</FONT></SPAN></DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial size=2>It listens 
to&nbsp;about 300 symbols and&nbsp;contains&nbsp; 30 simple rules. It works fine 
when the&nbsp;market is quiet. It uses about 500 M in memory and there&nbsp;is 
no big difference between reports from&nbsp;top and jconsole.&nbsp;&nbsp;When 
market is busy, memory displayed in jconsole is still ok, but top reports much 
more memory and it did not come down at all. Sometimes it could reach 50G when 
it's a crazy day.</FONT></SPAN></DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial size=2>I used jmap 
to&nbsp;check&nbsp;the memory map&nbsp;&nbsp;and it looks fine from java view, I 
wonder if drools hold something when it's very busy? What is supposed to happen 
if drools could not handle the work load?</FONT></SPAN></DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial size=2>Thanks for your 
help.</FONT></SPAN></DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=204521215-29092008><FONT face=Arial 
size=2>-Ping</FONT></SPAN></DIV><br><br><table bgcolor=white style="color:black"><tr><td><br><br>
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The&nbsp;information&nbsp;contained&nbsp;in&nbsp;the&nbsp;linked&nbsp;e-mail&nbsp;transmission&nbsp;and&nbsp;any&nbsp;attachments&nbsp;may&nbsp;be&nbsp; <br>
privileged&nbsp;and&nbsp;confidential&nbsp;and&nbsp;is&nbsp;intended&nbsp;only&nbsp;for&nbsp;the&nbsp;use&nbsp;of&nbsp;the&nbsp;person(s)&nbsp;named&nbsp;in&nbsp;the&nbsp; <br>
linked&nbsp;e-mail&nbsp;transmission.&nbsp;If&nbsp;you&nbsp;are&nbsp;not&nbsp;the&nbsp;intended&nbsp;recipient,&nbsp;or&nbsp;an&nbsp;employee&nbsp;or&nbsp;agent&nbsp; <br>
responsible&nbsp;for&nbsp;delivering&nbsp;this&nbsp;message&nbsp;to&nbsp;the&nbsp;intended&nbsp;recipient,&nbsp;you&nbsp;should&nbsp;not&nbsp;review,&nbsp; <br>
disseminate,&nbsp;distribute&nbsp;or&nbsp;duplicate&nbsp;this&nbsp;e-mail&nbsp;transmission&nbsp;or&nbsp;any&nbsp;attachments&nbsp;.&nbsp;If&nbsp;you&nbsp; <br>
are&nbsp;not&nbsp;the&nbsp;intended&nbsp;recipient,&nbsp;please&nbsp;contact&nbsp;the&nbsp;sender&nbsp;immediately&nbsp;by&nbsp;reply&nbsp;e-mail&nbsp;and&nbsp; <br>
destroy&nbsp;all&nbsp;copies&nbsp;of&nbsp;the&nbsp;original&nbsp;message.&nbsp;We&nbsp;do&nbsp;not&nbsp;accept&nbsp;account&nbsp;orders&nbsp;and/or&nbsp; <br>
instructions&nbsp;related&nbsp;to&nbsp;AllianceBernstein&nbsp;products&nbsp;or&nbsp;services&nbsp;by&nbsp;e-mail,&nbsp;and&nbsp;therefore&nbsp;will&nbsp; <br>
not&nbsp;be&nbsp;responsible&nbsp;for&nbsp;carrying&nbsp;out&nbsp;such&nbsp;orders&nbsp;and/or&nbsp;instructions.&nbsp;The&nbsp;linked&nbsp;e-mail&nbsp; <br>
transmission&nbsp;and&nbsp;any&nbsp;attachments&nbsp;are&nbsp;provided&nbsp;for&nbsp;informational&nbsp;purposes&nbsp;only&nbsp;and&nbsp;should&nbsp;not&nbsp; <br>
be&nbsp;construed&nbsp;in&nbsp;any&nbsp;manner&nbsp;as&nbsp;any&nbsp;solicitation&nbsp;or&nbsp;offer&nbsp;to&nbsp;buy&nbsp;or&nbsp;sell&nbsp;any&nbsp;investment&nbsp; <br>
opportunities&nbsp;or&nbsp;any&nbsp;related&nbsp;financial&nbsp;instruments&nbsp;and&nbsp;should&nbsp;not&nbsp;be&nbsp;construed&nbsp;in&nbsp;any&nbsp;manner&nbsp; <br>
as&nbsp;a&nbsp;public&nbsp;offer&nbsp;of&nbsp;any&nbsp;investment&nbsp;opportunities&nbsp;or&nbsp;any&nbsp;related&nbsp;financial&nbsp;instruments.&nbsp;&nbsp;If&nbsp; <br>
you,&nbsp;as&nbsp;the&nbsp;intended&nbsp;recipient&nbsp;of&nbsp;the&nbsp;linked&nbsp;e-mail&nbsp;transmission,&nbsp;the&nbsp;purpose&nbsp;of&nbsp;which&nbsp;is&nbsp;to&nbsp; <br>
inform&nbsp;and&nbsp;update&nbsp;our&nbsp;clients,&nbsp;prospects&nbsp;and&nbsp;consultants&nbsp;of&nbsp;developments&nbsp;relating&nbsp;to&nbsp;our&nbsp; <br>
services&nbsp;and&nbsp;products,&nbsp;would&nbsp;not&nbsp;like&nbsp;to&nbsp;receive&nbsp;further&nbsp;e-mail&nbsp;correspondence&nbsp;from&nbsp;the&nbsp; <br>
sender,&nbsp;please&nbsp;&quot;reply&quot;&nbsp;to&nbsp;the&nbsp;sender&nbsp;indicating&nbsp;your&nbsp;wishes.&nbsp;&nbsp;Although&nbsp;we&nbsp;attempt&nbsp;to&nbsp;sweep&nbsp; <br>
e-mail&nbsp;and&nbsp;attachments&nbsp;for&nbsp;viruses,&nbsp;we&nbsp;will&nbsp;not&nbsp;be&nbsp;liable&nbsp;for&nbsp;any&nbsp;damages&nbsp;arising&nbsp;from&nbsp;the&nbsp; <br>
alteration&nbsp;of&nbsp;the&nbsp;contents&nbsp;of&nbsp;this&nbsp;linked&nbsp;e-mail&nbsp;transmission&nbsp;and&nbsp;any&nbsp;attachments&nbsp;by&nbsp;a&nbsp;third&nbsp; <br>
party&nbsp;or&nbsp;as&nbsp;a&nbsp;result&nbsp;of&nbsp;any&nbsp;virus&nbsp;being&nbsp;passed&nbsp;on.<br>
<br>
Please&nbsp;note:&nbsp;<br>
Trading&nbsp;instructions&nbsp;sent&nbsp;electronically&nbsp;to&nbsp;Bernstein&nbsp;shall&nbsp;not&nbsp;be&nbsp;deemed&nbsp;accepted&nbsp;until&nbsp;a&nbsp; <br>
representative&nbsp;of&nbsp;Bernstein&nbsp;acknowledges&nbsp;receipt&nbsp;electronically&nbsp;or&nbsp;by&nbsp;telephone.&nbsp;Comments&nbsp;in&nbsp; <br>
the&nbsp;linked&nbsp;e-mail&nbsp;transmission&nbsp;and&nbsp;any&nbsp;attachments&nbsp;are&nbsp;part&nbsp;of&nbsp;a&nbsp;larger&nbsp;body&nbsp;of&nbsp;investment&nbsp; <br>
analysis.&nbsp;For&nbsp;our&nbsp;research&nbsp;reports,&nbsp;which&nbsp;contain&nbsp;information&nbsp;that&nbsp;may&nbsp;be&nbsp;used&nbsp;to&nbsp;support&nbsp; <br>
investment&nbsp;decisions,&nbsp;and&nbsp;disclosures,&nbsp;see&nbsp;our&nbsp;website&nbsp;at&nbsp;www.bernsteinresearch.com.<br>
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