SOFTWARE OR THE USE OR OTHER DEALINGS IN THE // SOFTWARE. Lockfree, MPMC Queue - Legal CppCon 2024 | Erez Strauss | Lockfree, MPMC Queue https://github.com/erez-strauss/lockfree_mpmc_queueAbout me ● C++/C com/in/erezstrauss/ 3 CppCon 2024 | Erez Strauss | Lockfree, MPMC Queue https://github.com/erez-strauss/lockfree_mpmc_queueLockfree, MPMC Queue - Agenda 1. Trading Platform, Latency 2. Queues Environment 5. Queues Classification 6. Queue creation, push, pop 7. Queue internals 8. Testing 9. Performance - Benchmarking 4 CppCon 2024 | Erez Strauss | Lockfree, MPMC Queue https://github.com/erez-strau

create (vertex, vertex, dist) priority queue Q # create a priority queue Q.add_with_priority((start, start, 0)) # add start vertex to priority queue while Q is not empty: (p,u create (vertex, vertex, dist) priority queue Q # create a priority queue Q.add_with_priority((start, start, 0)) # add start vertex to priority queue while Q is not empty: (p,u (vertex, vertex, dist) priority queue Q # create a priority queue 5 Q.add_with_priority((start, start, 0)) # add start vertex to priority queue 6 7 while Q is not empty:

Core Bridges Transformers Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread 0 Full release notes. Highlights: Management methods to update diverts Ability to "disable" a queue so that messages are not routed to it Support JVM GC & thread metrics ./artemis user add --user-command-user --user-command-user guest --user-command-password guest Versions 10 Support for resetting queue properties by unsetting them in broker.xml Undeploy diverts by removing them from broker.xml Add add

Core Bridges Transformers Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread methods to update diverts Ability to "disabled" a queue so that messages are not routed to it Support JVM GC & thread metrics Support for resetting queue properties by unsetting them in broker.xml Undeploy ActiveMQ 5's individual dead-letter strategy Automatic creation of expiry resources Improved API for queue creation Allow users to override JAVA_ARGS via environment variable Reduce heap usage during journal

74 1.75 1.76 1.77 1.78 Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread auto-delete-addresses-delay Address Settings. Support logging HTTP access. Add a CLI command to purge a queue. Support user and role manipulation for PropertiesLoginModule via management interfaces. Docker exclusive queue features. 2.5.0 Full release notes. Highlights: Exclusive consumers. Equivalent ActiveMQ 5.x Virtual Topic naming abilities. SSL Certificate revocation list. Last-value queue support

74 1.75 1.76 1.77 1.78 Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread auto-delete-addresses-delay Address Settings. Support logging HTTP access. Add a CLI command to purge a queue. Support user and role manipulation for PropertiesLoginModule via management interfaces. Docker exclusive queue features. 2.5.0 Full release notes. Highlights: Exclusive consumers. Equivalent ActiveMQ 5.x Virtual Topic naming abilities. SSL Certificate revocation list. Last-value queue support

Core Bridges Transformers Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread methods to update diverts Ability to "disabled" a queue so that messages are not routed to it Support JVM GC & thread metrics Support for resetting queue properties by unsetting them in broker.xml Undeploy ActiveMQ 5's individual dead-letter strategy Automatic creation of expiry resources Improved API for queue creation Allow users to override JAVA_ARGS via environment variable Reduce heap usage during journal

Core Bridges Transformers Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Broker Balancers Graceful Server Shutdown Libaio Native methods to update diverts Ability to "disable" a queue so that messages are not routed to it Support JVM GC & thread metrics Support for resetting queue properties by unsetting them in broker.xml Undeploy situation, but it's worth mentioning here anyway. Prior to 2.14.0 if you configured a parameter on a queue in broker.xml (e.g. max-consumers ) and then later removed that setting the configured value

Core Bridges Transformers Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread auto-delete-addresses- delay Address Settings. Support logging HTTP access. Add a CLI command to purge a queue. Support user and role manipulation for PropertiesLoginModule via management interfaces. Docker exclusive queue features. 2.5.0 Full release notes. Highlights: Exclusive consumers. Equivalent ActiveMQ 5.x Virtual Topic naming abilities. SSL Certificate revocation list. Last-value queue support

Core Bridges Transformers Duplicate Message Detection Clusters Federation Address Federation Queue Federation High Availability and Failover Graceful Server Shutdown Libaio Native Libraries Thread upgrade instructions outlined here. 2.14.0 Full release notes. Highlights: Removing broker.xml queue parameters now causes these to be reset to their default values. Upgrading from older versions auto-delete-addresses-delay Address Settings. Support logging HTTP access. Add a CLI command to purge a queue. Support user and role manipulation for PropertiesLoginModule via management interfaces. Docker