[Quickfixj-users] Losing time between fromApp calls

[Florian L. <fl...@un...>]

Hi everyone

I'm a new user of Quickfix/j and so far the implementation is going 
well, but now that I started performance testing I realized that it 
isn't my code in the fromApp calls that is losing time, but it's 
actually that between every fromApp call I'm losing around 20ms, which 
limits my throughput to under 50msg/s. I see this by logging at the 
beginning and at the end of every fromApp call, which shows clearly that 
the time is lost between the calls and not during the method execution. 
Can anyone tell me what I might be doing wrong or how I can get 
Quickfix/j not to pause for 20ms between consecutive fromApp calls, but 
follow one fromApp call immediately after the last has terminated? Or is 
there any way to parallelize the fromApp calls (even though the messages 
all arrive via the same session)?

2020-09-10 09:00:33.210  INFO 12184 --- [QFJ Message Processor] MyApp    
: startFromApp
2020-09-10 09:00:33.210  INFO 12184 --- [QFJ Message Processor] MyApp    
: endFromApp
2020-09-10 09:00:33.230  INFO 12184 --- [QFJ Message Processor] MyApp    
: startFromApp
2020-09-10 09:00:33.230  INFO 12184 --- [QFJ Message Processor] MyApp    
: endFromApp
2020-09-10 09:00:33.250  INFO 12184 --- [QFJ Message Processor] MyApp    
: startFromApp
2020-09-10 09:00:33.250  INFO 12184 --- [QFJ Message Processor] MyApp    
: endFromApp
2020-09-10 09:00:33.270  INFO 12184 --- [QFJ Message Processor] MyApp    
: startFromApp
2020-09-10 09:00:33.270  INFO 12184 --- [QFJ Message Processor] MyApp    
: endFromApp
2020-09-10 09:00:33.290  INFO 12184 --- [QFJ Message Processor] MyApp    
: startFromApp
2020-09-10 09:00:33.290  INFO 12184 --- [QFJ Message Processor] MyApp    
: endFromApp

Thanks for your help and best regards,
Florian