Fat Tail - Pie Chart10 Latency Fat Tail - Pie ChartProducer 2 11 Queue Producer N Consumer 1 Consumer 2 Consumer M time tin tout Queue - Message and time flow Producer 1Lockfree, MPMC Queue - Connecting producers; producers.resize(P); for (auto& p : producers) p = std::thread{producer}; auto consumer = [&]() { unsigned v{0}; for (unsigned x = 0; x < N; ++x) { while ( std::vector consumers; consumers.resize(P); for (auto& c : consumers) c = std::thread{consumer}; for (auto& p : producers) p.join(); for (auto& c : consumers) c.join(); std::cout

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ue https://www.dpdk.org/ 3● Single producer: one producer (aka writer) thread ● Single consumer: one consumer (aka reader) thread ● Lock-free: it doesn’t use mutex locks. At any point of time, some if it were connected end-to-end. The oldest entry is processed first. 4 Single Producer Single Consumer Lock-Free Wait-Free Fifo5 Read message from network Handle message Write response to network

reference. 22 Chapter 2. Contents Celery Documentation, Release 4.1.0 Configuration Celery, like a consumer appliance, doesn’t need much configuration to operate. It has an input and an output. The input from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d celery@worker1

... See celery.result for the complete result object reference. Configuration Celery, like a consumer appliance, doesn’t need much to be operated. It has an input and an output, where you must connect from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d celery@worker1

... See celery.result for the complete result object reference. Configuration Celery, like a consumer appliance, doesn’t need much to be operated. It has an input and an output, where you must connect from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d celery@worker1

reference. 22 Chapter 2. Contents Celery Documentation, Release 4.0.2 Configuration Celery, like a consumer appliance, doesn’t need much to be operated. It has an input and an output, where you must connect from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d celery@worker1

... See celery.result for the complete result object reference. Configuration Celery, like a consumer appliance, doesn’t need much to be operated. It has an input and an output, where you must connect from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d celery@worker1

traceback ? See celery.result for the complete result object reference. Configuration Celery, like a consumer appliance, doesn’t need much configuration to operate. It has an input and an output. The input from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d

traceback … See celery.result for the complete result object reference. Configuration Celery, like a consumer appliance, doesn’t need much to be operated. It has an input and an output, where you must connect from a queue at run-time using the remote control commands add_consumer and cancel_consumer. Queues: Adding consumers The add_consumer control command will tell one or more workers to start consuming control add_consumer foo -> worker1.local: OK started consuming from u'foo' If you want to specify a specific worker you can use the --destination argument: $ celery -A proj control add_consumer foo -d