SQLite as a Result File Format in OMNeT++ OMNeT++ Community Summit 2016, Brno University of Technology (FIT-BUT), Sept 15-16. Rudolf Hornig OMNeT++ Result Files ● Scalar and Vector files ● Contents: attributes ○ Vector file: vector data: (module, vectorname, vector data = (timestamp+value)*) ● Current format: ○ Line-oriented text file, human-readable, easy to parse ○ Tools: ■ Analysis Tool in the IDE: (GNU R is a language and environment for statistical computing) 2 Pros and Cons of the Current Format Pros: ● Human readable ● Easy to parse with command-line tools Cons: ● Hard to use directly

Google XML Document Format Style Guide Version 1.0 Copyright Google 2008 Introduction This document provides a set of guidelines for general use when designing new XML document formats (and to some retroactive changes in existing designs. When participating in the creation of public or private document format designs, the guidelines may be helpful but should not control the group consensus. This guide is to express rich text. A document that includes embedded content in XHTML or some other rich-text format, but also contains purely machine-interpretable portions, SHOULD follow this style guide for the

improvements of more than 500x overthe state-of-the-art Compilertakes in standard Unified Robot Description Format (URDF) files and generates optimized code Setup data structure to optimize SIMD execution Skip

Ease of exposing data has lead to an explosion in compatible metrics endpoints Prometheus’ exposition format is based on a lot of operational experience, but has been designed between few people Some OpenMetrics Introduction Quick intro OpenMetrics Outro Plans Approach Spin out Prometheus exposition format into its own standard Neutral brand Umbrella for wider cooperation in FLOSS and industry Broadening

monitoring, we mean it One of our most powerful features are labels Labels are encoded in our exposition format Some third-party projects and vendors have an issue with supporting a ”competing” project 2.0 to 2.2.1 2.4 - 2.6 Beyond Outro OpenMetrics What do? We are spinning out Prometheus’ exposition format Face-to-face kick-off last August at Google London Independent CNCF member project, IETF RFC

must implement the segments CPO However, once we create transform_view, no way to access fun. (exposition-only private member) template auto segments(transform_view& v) { auto&& must implement the segments CPO However, once we create transform_view, no way to access fun. (exposition-only private member) template auto segments(transform_view& v) { auto&& Lessons learnedDense and Sparse Matrices - Sparse matrices can have many different formats - Each format may support different iteration orders 0 1 0 1 1 2 2 2 3 1 2 2 2 3 0 0 2 0 1 3

std::ranges::less? • It’s a class declared in : � struct less { // simplified for exposition template< class T, class U > constexpr bool operator ( ) ( T && t, U && u ) const { return t alter E. Brown. All rights reserved. 41 My version of std::ranges::less [edited for exposition] • struct less { template< class L, class R > constexpr bool operator( ) ( L && lew, R && right alter E. Brown. All rights reserved. 42 My version of std::cmp less [edited for exposition] • template< std integer type L, std integer type R > constexpr bool cmp less( L left, R right

static constexpr size_t dynamic_index (size_t) noexcept; // exposition only 28 array dynamic_extents_ {}; // exposition only 29 }; CppCon - Vincent Reverdy - September 17th template 3 class mapping { 4 using index_type = typename Extents :: index_type; // exposition only 5 public: 6 constexpr mapping () noexcept = default; 7 constexpr mapping(const mapping &) =( const mapping & rhs) const noexcept 26 27 private: 28 Extents extents_ {}; // exposition only 29 }; 30 }; CppCon - Vincent Reverdy - September 17th, 2020 - Online CC0 1.0 Universal -

@fredbrancz Intro to Prometheus Introduction Background Operations & observability Outro Exposition format http_requests_total{env=" prod" ,method=" post" ,code=" 200" } 1027 http_requests_total{env="

contemporary scene, we regard this as evidence that the subject is refractory. Thus fullness of exposition is necessary for accuracy; and excessive condensation would be false economy here, even more than either at the top level or in nested scopes (i.e. those within a let or where construct). For exposition, we divide the declarations into three groups: user-defined datatypes, consisting of type, newtype context and a given external context, except where Haskell explicitly prescribes a specific data format. The principal goal of a foreign function interface is to provide a programmable interface between