NOTES UNIT IV D e v e l o p e d B y - S a r o j J u n g h a r e Page 1 BCA III YEAR GIMP NOTES UNIT-IV GIMP NOTES UNIT IV D e

. . . . . . . . . . . . . . . . . 3 I.III 关于 Ubuntu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 I.III.I Ubuntu 承诺 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 I.III.II Ubuntu 版本 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 I.III.III Ubuntu 衍生版 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 I.III.IV Ubuntu 开发和社区 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 I.IV Ubuntu 和 Microsoft Windows：对比 . . . . . . . . . . . .

advanced. That is the force for the future.” - Secretary Panetta, Defense Security Review, 5 Jan 12iii Foreword Department of Defense (DoD) program managers and executives have struggled for years to ............................................................................................ 17 III. Agile Acquisition Processes ..................................................................... How much planning occurs in early phases and documents vice continually throughout the releases?20 III. Agile Acquisition Processes The following sections recommend strategies for implementing Agile within

Release Notes i. Laravel 5.0 ii. Laravel 4.2 iii. Laravel 4.1 ii. Upgrade Guide i. Upgrading To 5.0 From 4.2 ii. Upgrading To 4.2 From 4.1 iii. Upgrading To 4.1.29 From <= 4.1.x iv. Upgrading Upgrading To 4.1.26 From <= 4.1.25 v. Upgrading To 4.1 From 4.0 iii. Contribution Guide i. Bug Reports ii. Core Development Discussion iii. Which Branch? iv. Security Vulnerabilities v. Coding Style 3. Installation i. Install Composer ii. Install Laravel iii. Server Requirements ii. Configuration i. Introduction ii. After Installation iii. Accessing Configuration Values iv. Environment Configuration

Create the foundation of our deployment pipeline ii. Enabling fast & reliable automated testing iii. Enabling & practicing continuous integration & testing iv. Automating, enabling, and architecting common build mechanism to create it on demand 2. Codified in automated environment build process iii. Environments will be stable, reliable, consistent, & secure c. CREATE OUR SINGLE REPOSITORY OF TRUTH shared in a version control repository ii. Version control is for everyone in the value stream iii. Everything, everything, everything is checked into version control 1. Application code & dependencies

Implement fast feedback loops i. Enable working towards shared goals ii. See problems as they occur iii. Enable quick detection & recovery iv. Ensure features operate as intended and achieve organizational telemetry in application & environments (to include production, pre-production, and CD pipeline) iii. Ian Malpass, Etsy – “If Engineering at Etsy has a religion, it’s the Church of Graphs. If it moves visualization, trending, alerting, & other good things b. Enable threshold-based alerting & health checks iii. Transform logs/events into metrics to enable statistical analysis iv. Adrian Cockcraft – “Monitoring

design problems in complex systems that we build; they are system problems – not individual problems iii. Effective practices 1. Blameless post-mortems 2. Controlled introduction of failures for practice future and ensure these countermeasures are recorded with ta target date and an owner for follow-up. iii. Blameless Post-Mortem – Stakeholders: 1. The people involved in decisions that may have contributed to keep learning and improving ii. Continue to amplify signals to help avert the next catastrophe iii. Michael Roberto, Richard M.J. Bohmer, & Amy C. Edmondson (Harvard Business Review): organizations

(thirty times more frequent) ii. Code and change deployment lead time (two hundred times faster) iii. Production deployments (sixty times higher change success rate) iv. Mean time to restore service difficult the production errors are to diagnose and fix, and the longer they take to remediate. iii. CONTINUALLY IDENTIFY AND ELEVATE OUR CONSTRAINTS 1. If we improve a work center that is positioned global improvements, so that new techniques and practices can be used by the entire organization iii. ENABLING ORGANIZATIONAL LEARNING AND A SAFETY CULTURE 1. When we work within a complex system, by

Sparrow  Testbed II. Practicing Sparrow  CantripOS(KataOS)  Rust support in seL4 userspace III. Sparrow development  Develop with Renode IV. Wrap-up 1) Tech Stack 1.1 Microkernel Overview Ray.Rust" will come soon. … 1) Develop with Renode 1.1 Rust peripheral support III. Sparrow Development  It has been possible to design Renode peripheral models in a variety of com/antmicro/renode-rust-example III. Sparrow Development Take a look at how the reading from RECEIVE_DATA and writing to TRANSMIT_DATA were implemented in Rust: III. Sparrow Development

PMC 主席 3 ⽬录 I. Ozone 构架 II. Ozone 1.3 新功能 III. 未来展望 4 Ozone 构架 5 Ozone 1.3 新功能 I. 纠删码(Erasure coding) II. 系统均衡器(Container Balancer) III. 性能优化 - ⽂件系统优化(File System Optimization) IV. 性能优化 存储效率 7 Ozone条带纠删码 I. 物理块：每个DN磁盘上的数据块，默认256MB II. 逻辑EC块：满⾜EC策略的⼀个⽤户数据块。例如RS-3-2，⼀个逻辑块3*256MB⼤⼩ III. 条带：条带的默认粒度1MB，可配置 IV. EC Container Group：给定Container的⼀组满⾜EC策略的副本实例 8 数据写⼊ DN5 C-1 C-2 B-1-p RS-3-2-1024K II. RS-6-3-1024K III.XOR-2-1-1024K II. 可定制新的策略 III.策略设置⽀持 I. 全局策略设置 II. 桶级别策略设置 III.对象/⽂件级别策略设置 12 Container Balancer 时机 I. 新的节点加⼊Ozone集群 II. 删除⼤量数据后 好处 III.充分利⽤集群资源 IV.均衡集群IO访问 实现