Re: [Quickfixj-users] Losing time between fromApp calls

[Colin D. <co...@ma...>]

We regularly process over 1000 messages/s, so I don't think this is some 
integral limitation to qfj.

If it were me, I would use a profiling tool like Oracle JMC or the like 
to see what's taking the most cycles.

At a guess, I would be suspicious of whatever it is that's sending the 
messages. It's such a regular interval that I wonder if your source 
isn't sending messages fast enough.

In my experience, the network side of qfj takes microseconds to handle a 
message.

On 9/10/20 1:33 AM, Florian Leu wrote:
> QuickFIX/J Documentation: http://www.quickfixj.org/documentation/
> QuickFIX/J Support: http://www.quickfixj.org/support/
>
>
> 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
>
>
>
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Colin DuPlantis
Chief Architect, Marketcetera
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