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https://issues.apache.org/jira/browse/ARTEMIS-2399?focusedWorklogId=289506&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-289506
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ASF GitHub Bot logged work on ARTEMIS-2399:
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Author: ASF GitHub Bot
Created on: 06/Aug/19 07:59
Start Date: 06/Aug/19 07:59
Worklog Time Spent: 10m
Work Description: wy96f commented on issue #2750: ARTEMIS-2399 Improve
performance when there are a lot of subscribers
URL: https://github.com/apache/activemq-artemis/pull/2750#issuecomment-518556136
@franz1981
> And while catching up, the producers are not seriously decreasing their
rate?
This PR has helped in your tests?
This PR helped to improve consumer throughput while entering into page mode
with lots of subscribers. I didn't see the producers rate seriously decreased,
although producers slowed down bcs consumers used extra io.
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Issue Time Tracking
-------------------
Worklog Id: (was: 289506)
Time Spent: 16h 20m (was: 16h 10m)
> Improve performance when there are a lot of subscribers
> -------------------------------------------------------
>
> Key: ARTEMIS-2399
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2399
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 2.9.0
> Environment: broker 2.9.0
> cpu: 4 cores, memory: 8G, disk: ssd 500G
> broker.xml:
> <thread-pool-max-size>60</thread-pool-max-size>
> <address-setting match="#">
> <max-size-bytes>51Mb</max-size-bytes>
> <page-size-bytes>50Mb</page-size-bytes>
> <page-max-cache-size>1</page-max-cache-size>
> <address-full-policy>PAGE</address-full-policy>
> </address-setting>
> <message-expiry-scan-period>-1</message-expiry-scan-period>
> Reporter: yangwei
> Priority: Major
> Time Spent: 16h 20m
> Remaining Estimate: 0h
>
> We noticed that there was a significant drop in performance when entering
> page mode in the case of multiple subscribers.
> We created a topic and 100 queues bound to it. We ran our _GrinderRunner
> test_ in our inner test infra cluster with 500 threads producing message and
> 560 threads, each one picked a random queue to subscribe. The test showed
> performance is bad: 13000 msg/s sent and 5000 msg/s received.
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