mwashburn2 commented on PR #2019:
URL: https://github.com/apache/activemq/pull/2019#issuecomment-4615338086
In testing with with 3 producers and 50 slow consumers:
Before Change:
15:11:44.062 [main] INFO c.m.c.j.s.SlowConsumerSendBlockingTest - producer
stats (last 1.00s): producer-0={rate=0/s, maxSendLatencyUs=0}
producer-1={rate=18/s, maxSendLatencyUs=1760023} producer-2={rate=36/s,
maxSendLatencyUs=1772421} delivered=2250
After Change:
15:04:08.813 [main] INFO c.m.c.j.s.SlowConsumerSendBlockingTest - producer
stats (last 1.00s): producer-0={rate=119/s, maxSendLatencyUs=190856}
producer-1={rate=128/s, maxSendLatencyUs=232260} producer-2={rate=36/s,
maxSendLatencyUs=573874} delivered=11550
This graph shows the number of times in our production environment over the
last 14 days a producer was blocked enqueuing. We see it dropped to almost 0
when I released this on May 31st.
<img width="1388" height="806" alt="image"
src="https://github.com/user-attachments/assets/22f35ac4-59fc-4eb0-98ee-dfb4880ad7d9";
/>
There was no material change in the number of pending queues (as expected).
<img width="887" height="795" alt="image"
src="https://github.com/user-attachments/assets/86c0f104-601e-4c11-a2b4-f9818e835015";
/>
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