互联网企业的发展模式 Web3? So-called Web3 ？ Where is the Next Stage ★ Blockchain ★ Decentralized Ledger Storage: MPT (Merkle Patricia Tree) ★ K-V database ★ Smart Contract ★ Serverless The Weapons Web3 Utilizes Wants to extend the financial computation/storage model to general cases • Limites of On-chain VM computation • Limites of MPT • Limites of K-V db Problems of Web3: Technical Viewpoint Financial Model: the closed data model has been at the end. A New Proposal: Open Data Application The Road to Open Web ➔ From the user side, it looks like just the traditional Internet app ➔ But everyone have the chance

Project History Harbor Community Harbor Users and Partners (selected) x x Main Features 6 Web Portal • Based on open source Clarity • Image operation full capabilities • Batch operations Restful Service Harbor components 3rd party components SQL Database Key/Value Storage Persistence components Local or Remote Storage (block, file, object) Users (GUI/API) Container Schedulers/Runtimes

n" metadata: name: "demo-01" spec: configuration: clusters: - name: "demo" Здесь нет storage Еще вернемся к этому kubectl – наше всё 1. NAMESPACE $ kubectl create namespace demo namespace/demo Persistent Storage apiVersion: "clickhouse.altinity.com/v1" kind: "ClickHouseInstallation" metadata: name: "storage" spec: defaults: templates: volumeClaimTemplate: storage-vc-template name: storage-vc-template persistentVolumeClaim: spec: accessModes: - ReadWriteOnce resources: requests: storage: 2Gi

下一次 Handle Await Tree 的实现 Await Tree 的设计原理与实现 • 一棵树代表一个 Task 的执行状态 • Task 单线程执行 • 在 Task-Local Storage 中无竞争维护 • 使用 Arena Tree 简化实现 • 无 Unsafe 代码 Await Tree 的实现 Await Tree 的设计原理与实现 • Future Adapter risingwave.com • GitHub 4.5k Stars • “Materialized View” • 计算：分布式流计算任务，实时增量维护 • 存储： S3 上的 Shared-storage 存储状态和数据 Await Tree 在 RisingWave 中的应用 • 技术挑战 • 计算任务需长期执行，稳定性要求高 • 算子逻辑复杂，计算与存储读写穿插，强依赖 Async •

language • Secure: Minimal hardware emulation • Flexible: Easy to customize to fit various network, storage and OS environments • High-performance: Leverage KVM capability Advantage of Rust-VMM • Google image: nginx EOT Rust- VMM Demo Future Works • Extend Rust-VMM to support networking and storage • Security policy integration • Develop a new fully Rust-based runtime for edge computing • Support

索性把坐标和值打包成 tuple ，存储在 vector 按行压缩（ Compressed Row Storage ） http://www.netlib.org/linalg/html_templates/node91.html 按行压缩（ Compressed Row Storage ） http://www.netlib.org/linalg/html_templates/node91

print(v); // cat ox }18 atomic_ref19 atomic vs. atomic_ref • atomic: atomic access and storage for T • atomic_ref: atomic access for separate T • Scenarios (see P0019R8): • Distinct single-threaded

Optimization rules: MATCH -> pushdown Planning Strategies Graph Execution Code Gen JIT Cost model Storage backend （ Property Graph KV store ） Pushdown filter Cypher (a)-[:LIKES]->(b) 计算下推：面向图应用特征设计 分布式存储

error: not constant ❌73 constinit  Static initialization order fiasco  Variables with static storage and dynamic initializers  bugs due to undefined order of dynamic initializations  ❌  Static

oDebugging JavaScript Why are we here? How did NativeScript come to be? Swift/Obj-C Java .NET We ❤ Web. But… We need: • Better offline support • Access to all device APIs • Home screen availability discovery • … Hybrid "Promise" 100% Web 100% Nativ e Hybri d Reach Code/Skill Reuse Richness Premium experience Device APIs Best of both? Compromises. Mobile Web - PWA Hybrid Native “1st Gen” apps for iOS & Android o Use web skills o JS, CSS, XML-based markup o Write once, run everywhere o Share 100% code between iOS/Android o Share 80% code with web o Reuse popular plugins from NodeJS/iOS/Android