Pepabo, Inc. 2019.07.25 GopherCon 2019 Optimization for number of goroutines using feedback control Principal engineer Yusuke MIYAKE @monochromegane Pepabo R&D Institute, GMO Pepabo, Inc. https://blog Selection of performance metrics 2. Finding how to control rapidly and continuously Performance metrics Performance metrics �29 • Independent resource type which task use. • e.g.: CPU usage, Throughput number of goroutines based on the metrics • Continuously • Rapidly • Accurately • Feedback control meets these conditions. • Tracking a given set-point using errors from the set-point. • Applying

Gopher  China  2015  Resource  Scheduling  &  Container  Technology  for  Financial  Service  动态资源管理和容器技术  在金融行业的架构探索和明天  余军  Gopher  China  2015  Gopher  China  2015  China  2015  求解之路的探索  n 他们是否解决了我们的问题?  n No   ① Mesos  采用了DRF(Dominant  Resource  Fairness)  调度机制。 YARN自带FIFO、Capacity  Scheduler和Fair  Scheduler(借鉴了 Mesos的DRF)。  ② Mes oop中Capacity  Scheduler的调度机制，将所有资源分成若干个queue，每个 queue分配一定量的资源，每个user有一定的资源使用上限。  ③ Mesos采用了Resource  Offer机制，这种调度机制面临着资源碎 片问题，即：每个节点上的资源不可能全部被分配完，剩下的一 点可能不足以让任何任务运行，这样，便产生了类似于操作系统 中的内存碎片问题。 

that take a user-suppiled lambda to generate the data needed to render our desired compile-time resource! These are e�ectively templated functions, but we will use the cleaner auto parameter syntax for

Started with Spring 2. Introduction to the Spring Framework Dependency Injection and Inversion of Control Framework Modules Core Container AOP and Instrumentation Messaging Data Access/Integration Web Test annotation-based autowiring with qualifiers Using generics as autowiring qualifiers CustomAutowireConfigurer @Resource @PostConstruct and @PreDestroy Classpath scanning and managed components @Component and further ApplicationContext? Glue code and the evil singleton 8. Resources Introduction The Resource interface Built-in Resource implementations UrlResource ClassPathResource FileSystemResource ServletContextResource

Started with Spring 2. Introduction to the Spring Framework Dependency Injection and Inversion of Control Modules Core Container AOP and Instrumentation Messaging Data Access/Integration Web Test Usage annotation-based autowiring with qualifiers Using generics as autowiring qualifiers CustomAutowireConfigurer @Resource @PostConstruct and @PreDestroy Classpath scanning and managed components @Component and further ApplicationContext? Glue code and the evil singleton 8. Resources Introduction The Resource interface Built-in Resource implementations UrlResource ClassPathResource FileSystemResource ServletContextResource

.................................................. 3 2.1. Dependency Injection and Inversion of Control ...................................................... 3 2.2. Framework Modules ................ CustomAutowireConfigurer .............................................................................. 109 @Resource ............................................................................................... .................... 163 8.2. The Resource interface .................................................................................... 163 8.3. Built-in Resource implementations ..................

.................................................. 3 2.1. Dependency Injection and Inversion of Control ...................................................... 3 2.2. Modules .......................... CustomAutowireConfigurer .............................................................................. 104 @Resource ............................................................................................... .................... 155 8.2. The Resource interface .................................................................................... 155 8.3. Built-in Resource implementations ..................

Detecting Dead Connections Detecting Slow Consumers Avoiding Network Isolation Resource Manager Configuration Flow Control Guarantees of sends and commits Message Redelivery and Undelivered Messages Scheduled Messages Last-Value Queues Message Grouping Extra Acknowledge Modes Management Security Resource Limits The JMS Bridge Client Reconnection and Session Reattachment Diverting and Splitting Message (default-resources) @ queue --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 1 resource [INFO] Copying 3 resources [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile)

Detecting Dead Connections Detecting Slow Consumers Avoiding Network Isolation Resource Manager Configuration Flow Control Guarantees of sends and commits Message Redelivery and Undelivered Messages Scheduled Messages Last-Value Queues Message Grouping Extra Acknowledge Modes Management Security Resource Limits The JMS Bridge Client Reconnection and Session Reattachment Diverting and Splitting Message (default-resources) @ queue --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 1 resource [INFO] Copying 3 resources [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile)