Analytics Vasiliki (Vasia) Kalavri
 vkalavri@bu.edu Spring 2020 1/28: Stream ingestion and pub/sub systems Streaming sources Files, e.g. transaction logs Sockets IoT devices and sensors Databases might process a message out-of-order or twice 14 How can we avoid this? 15 Publish/Subscribe Systems publisher publisher publisher publisher subscriber notify() subscriber notify() subscriber subscribe notify unsubscribe advertise(): information reg. future events Publish/Subscribe Systems 17 Pub/Sub levels of de-coupling • Space: interacting parties do not need to know each other • Publishers

build.gradle ├── lib │ ... │ └── build.gradle └── settings.gradleParallelism Level 1 - Gradle Sub-project level parallelism. It is very limited as projects have very low granularity and are limited

} }; 25Encapsulation (static) Binary size increase… why? 26Encapsulation (static) _GLOBAL__sub_I_... ⚫ Objects with static storage duration need to be initialized before the main function is

best practices in embedded systems, with a focus on operating systemsToday’s spotlight: Exploring best practices in embedded systems, with a focus on operating systems Today’s take away: Practical Practical tips for building better software, applicable not only to embedded systems but also to software in generalEvery rule presented here comes with an exception Software isn't black and whiteThe code are for illustration⊡ Operating Systems ⊡ Threads ⊡ Layer Separation ⊡ Network Problems ⊡ External Interfaces ⊡ Simulators ⊡ Logs ⊡ Monitoring⊡ Operating Systems ⊡ Threads ⊡ Layer Separation

Ultrafast Trading Systems in C++ CppCon 2024 Thursday, 19 September 2024 David Gross Introduction 2 • About me - Leading the Options Automated Trading Systems team at Optiver market maker company - Worked on low-latency systems for 15 years in Trading and DefenseIntroduction 3 • About me - Leading the Options Automated Trading Systems team at Optiver, a global market maker company company - Worked on low-latency systems for 15 years in Trading and Defense • Today’s talk - Engineering low-latency trading systems - Profiling techniques to find bottlenecks - Some principles along

#IstioCon Building resilient systems inside the mesh: abstraction and automation of Virtual Service generation Vladimir Georgiev, Thought Machine #IstioCon Sync calls failures inside the mesh

supports multiple hardware and software platforms, such as X86 and ARM CPU, Linux and Darwin operating systems. 3 BAETYL Documentation 1.2 Components As an edge computing platform, Baetyl not only provides docker container mode and the native process mode. • Services and System Relationships: Baetyl systems can start multiple services, there is no dependency between services, and their startup order should Master exposes a set of RESTful APIs, adopts HTTP/1. By default, Unix Domain Socket is used on Linux systems, and the fixed address is /var/run/baetyl.sock. Other environments use TCP. The default address is

supports multiple hardware and software platforms, such as X86 and ARM CPU, Linux and Darwin operating systems. 3 BAETYL Documentation 1.2 Components As an edge computing platform, Baetyl not only provides docker container mode and the native process mode. • Services and System Relationships: Baetyl systems can start multiple services, there is no dependency between services, and their startup order should Master exposes a set of RESTful APIs, adopts HTTP/1. By default, Unix Domain Socket is used on Linux systems, and the fixed address is /var/run/baetyl.sock. Other environments use TCP. The default address is

600 Grid 611 HFG 611 Harmonic Colors 612 IFS Compose 613 Jigsaw 619 L-Systems 620 Maze 626 NCP 627 Plasma 628 xiv T h e G i m p Us er ’ s M a n u a l Ta since the early 1980s. UNIX caught his attention in 1993, and he has been configuring various UNIX systems and networks ever since. Olof currently works for the UNIX/Network consulting company Sigma-nbit primary source of extra func- tions and plug-ins are http://registry.gimp.org or ftp:// ftp.gimp.org/pub/gimp. If you bought the printed version of this book, the non-standard plug-ins and functions, as well