I'm running performance tests and noticing that under load I am getting 
increasingly large amounts of time spent in the SEDA queues.

For example below are some lines from my log when the app is under load (20 
concurrent threads). The first is from one Route (Get360List) that then call 
the calls the 3 routes via multicast in parallel (GetPolicyList, GetFeeList, 
GetClaimList).

There is a ~600ms delay between the multicast being called and the Consumers on 
those SEDA queues picking up the messages. I have 30 concurrent consumers set 
for each SEDA endpoint, so I would have thought that there would be no shortage 
of consumers to pull messages from these queues.

Are there any other settings that I should be looking at to reduce this delay?

2011-01-10 10:57:02,249 [a://get360Start] INFO  Aon_360Request                 
-(ID-aon43098-1487-1294617268515-0-3526) Started Single Client AONZBAD2571 for 
Get360List
2011-01-10 10:57:02,827 [PolicyListStart] INFO  Aon_GetPolicyListRoute         
-(ID-aon43098-1487-1294617268515-0-3526) Starting Single-Client for 
GetPolicyList
2011-01-10 10:57:02,827 [PolicyListStart] INFO  ExecProducer                   
-(ID-aon43098-1487-1294617268515-0-3526) Executing ExecCommand [args=[cbslocal, 
AONZBAD2571PDTrue], executable=C:/workspaces/CRMS/MockCBS/GetPolicyList.bat, 
timeout=9223372036854775807, outFile=null, workingDir=null, 
useStderrOnEmptyStdout=true]
2011-01-10 10:57:02,827 [PolicyListStart] INFO  GetOsCmdRouteBuilder$1         
-(ID-aon43098-1487-1294617268515-0-3526) Calling command: 
C:/workspaces/CRMS/MockCBS/GetPolicyList.bat cbslocal AONZBAD2571PDTrue
2011-01-10 10:57:02,827 [getFeeListStart] INFO  Aon_GetFeeListRoute            
-(ID-aon43098-1487-1294617268515-0-3526) Starting Single-Client for GetFeeList
2011-01-10 10:57:02,827 [tClaimListStart] INFO  Aon_GetClaimListRoute          
-(ID-aon43098-1487-1294617268515-0-3526) Starting Single-Client for GetClaimList
2011-01-10 10:57:02,827 [tClaimListStart] INFO  GetOsCmdRouteBuilder$1         
-(ID-aon43098-1487-1294617268515-0-3526) Calling command: 
C:/workspaces/CRMS/MockCBS/GetClaimList.bat cbslocal AONZBAD2571TrueD
2011-01-10 10:57:03,015 [PolicyListStart] INFO  ExecProducer                   
-(ID-aon43098-1487-1294617268515-0-3526) The command ExecCommand 
[args=[cbslocal, AONZBAD2571PDTrue], 
executable=C:/workspaces/CRMS/MockCBS/GetPolicyList.bat, 
timeout=9223372036854775807, outFile=null, workingDir=null, 
useStderrOnEmptyStdout=true] had exit value 0
2011-01-10 10:57:03,499 [PolicyListStart] INFO  Aon_GetPolicyListRoute         
-(ID-aon43098-1487-1294617268515-0-3526) Finished processing single Client for 
GetPolicyList
2011-01-10 10:57:03,593 [getFeeListStart] INFO  GetOsCmdRouteBuilder$1         
-(ID-aon43098-1487-1294617268515-0-3526) Calling command: 
C:/workspaces/CRMS/MockCBS/GetFeeList.bat cbslocal AONZBAD2571TrueD
2011-01-10 10:57:03,593 [tClaimListStart] INFO  ExecProducer                   
-(ID-aon43098-1487-1294617268515-0-3526) Executing ExecCommand [args=[cbslocal, 
AONZBAD2571TrueD], executable=C:/workspaces/CRMS/MockCBS/GetClaimList.bat, 
timeout=9223372036854775807, outFile=null, workingDir=null, 
useStderrOnEmptyStdout=true]
2011-01-10 10:57:03,718 [getFeeListStart] INFO  ExecProducer                   
-(ID-aon43098-1487-1294617268515-0-3526) Executing ExecCommand [args=[cbslocal, 
AONZBAD2571TrueD], executable=C:/workspaces/CRMS/MockCBS/GetFeeList.bat, 
timeout=9223372036854775807, outFile=null, workingDir=null, 
useStderrOnEmptyStdout=true]
2011-01-10 10:57:03,796 [tClaimListStart] INFO  ExecProducer                   
-(ID-aon43098-1487-1294617268515-0-3526) The command ExecCommand 
[args=[cbslocal, AONZBAD2571TrueD], 
executable=C:/workspaces/CRMS/MockCBS/GetClaimList.bat, 
timeout=9223372036854775807, outFile=null, workingDir=null, 
useStderrOnEmptyStdout=true] had exit value 0
2011-01-10 10:57:03,874 [getFeeListStart] INFO  ExecProducer                   
-(ID-aon43098-1487-1294617268515-0-3526) The command ExecCommand 
[args=[cbslocal, AONZBAD2571TrueD], 
executable=C:/workspaces/CRMS/MockCBS/GetFeeList.bat, 
timeout=9223372036854775807, outFile=null, workingDir=null, 
useStderrOnEmptyStdout=true] had exit value 0
2011-01-10 10:57:04,608 [getFeeListStart] INFO  Aon_GetFeeListRoute            
-(ID-aon43098-1487-1294617268515-0-3526) Finished processing single Client for 
GetFeeList
2011-01-10 10:57:04,655 [tClaimListStart] INFO  Aon_GetClaimListRoute          
-(ID-aon43098-1487-1294617268515-0-3526) Finished processing single Client for 
GetClaimList
2011-01-10 10:57:05,155 [a://get360Start] INFO  Aon_360Request                 
-(ID-aon43098-1487-1294617268515-0-3526) Finished processing Single Client 
AONZBAD2571 for Get360List

Thanks,

Damian.


Damian Harvey | Aon Australia/Pacific

Level 31, 201 Kent Street Sydney NSW 2000
t: +61292537000 | f: +61292537952
e: damian.har...@aon.com.au<mailto:damian.har...@aon.com.au>

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