poloclub.github.io/#cse6242
 CSE6242/CX4242: Data & Visual Analytics
 Simple Data Storage; SQLite Duen Horng (Polo) Chau
 Associate Professor, College of Computing
 Associate Director, MS Analytics


Architecture Game systems need a function to rollback (revert to a previous state). Typically a simple copy of data.Naïve OOP architecture ● Hard to copy ● Hard to serialize ● Pointers everywhere Player successful fast-paced online multiplayer experience: ● Deterministic simulation ● Rollback with a simple software architecture ● Debugging desync with checksumReferences ● 8 Frames in 16ms: Rollback Networking

2024Hiding your Implementation Details is Not So SimpleHiding your Implementation Details is Not So Simple And it’s not only me saying that...David L. Parnas Modularization by Information Hiding Information Plenary Sessions - Frederick P. Brooks Jr. - on YouTubeHiding your Implementation Details is Not So Simple Why?“Lazy”, may include: Time pressure: we have to cut the “fancy design” somewhere. We don’t a boolean value, at compile time ● May be used for overload resolution A much more elegant and simple substitute for SFINAEFirst Example 61 A Meander: Concepts We want to overload two generic functions:

Node Operator: Kubernetes Node Management Made Simple 陈俊(Joe), Ant Financial Agenda • Background and Motivation • Introduction of Operators • Node-Operator • Advanced Topic:

bpfbox: Simple Precise Process Confinement with eBPF and KRSI William Findlay October 28, 2020 bpfbox at a Glance ▶ bpfbox is a novel process confinement mechanism for Linux using eBPF ▶ Users write write per-application policy in a simple policy language ▶ Policy is enforced by attaching BPF programs to LSM hooks ▶ Integrates userspace and kernelspace state into policy decisions 1 / 7 Motivation

可用作基础镜像来构建非常简单的内核模块，名为 simple-kmod。 注意 注意 Driver Toolkit 包含为内核模块签名所需的依赖项、openssl、mokutil 和 keyutils。但 是，在这个示例中，simple-kmod 内核模块没有签名，因此无法在启用了安全引 安全引导 导 （ （Secure Boot） ）的系统中载入。 2.3.1. 在集群中构建并运行 simple-kmod 驱动程序容器 流程 创建命名空间。例如： 1. YAML 定义了 ImageStream，用于存储 simple-kmod 驱动程序容器镜像，以及用于构建容器的 BuildConfig。将此 YAML 保存为 0000-buildconfig.yaml.template。 $ oc new-project simple-kmod-demo apiVersion: image.openshift.io/v1 io/v1 kind: ImageStream metadata: labels: app: simple-kmod-driver-container name: simple-kmod-driver-container namespace: simple-kmod-demo spec: {} --- apiVersion: build.openshift.io/v1 kind: BuildConfig

RobotState goal) override { std::vector motion_plan = {}; // Insert a simple motion planner return motion_plan; } }; 15Plugin contains the Implementation Class RobotState goal) override { std::vector motion_plan = {}; // Insert a simple motion planner return motion_plan; } }; The SimpleMotionPlanner inherits from std::vector motion_plan = {}; // Insert a simple motion planner return motion_plan; } }; Add your simple motion planner 17Building the plugin • Should be built as

implementations are often provided through function interfaces. 9A Simple Computation 1 1 1 1 1 1 1 1 1 1 a simple GER, our user can directly use these entations. er hand, if the user wants 49⇥ (geomean) faster posed Accelerate implementation (Figure 3). TA Simple Computation Vectors 1 1 1 1 1 1 1 1 1 1 a simple GER, our user can directly use these entations. er hand, if the user (geomean) faster posed Accelerate implementation (Figure 3). TA Simple Computation Vectors Scalar 1 1 1 1 1 1 1 1 1 1 a simple GER, our user can directly use these entations. er hand, if the

控制但由其他人提供的第三方模块。您 需要类似 kvc -simple-kmod 示例中显示的内容 ，使用以下步骤将这些内容克隆到您的系统中： $ cd .. $ git clone https://github.com/kmods-via-containers/kvc-simple-kmod 6. 编辑示例中的配置文件 simple-kmod.conf，将 Dockerfile 的名称改为 Dockerfile Dockerfile.rhel ，该文件 如下所示： $ cd kvc-simple-kmod $ cat simple-kmod.conf KMOD_CONTAINER_BUILD_CONTEXT="https://github.com/kmods-via-containers/kvc- simple-kmod.git" KMOD_CONTAINER_BUILD_FILE=Dockerfile 4 KMOD_NAMES="simple-kmod simple-procfs-kmod" 7. 为您的内核模块创建一个 kmods-via-containers@.service 实例（在这个示例中是 simple- kmod ）并启用它： $ sudo make install $ sudo kmods-via-containers build simple-kmod $(uname -r)

可用作基础镜像来构建非常简单的内核模块，名为 simple-kmod。 注意 Driver Toolkit 包括为内核模块签名所需的依赖项、openssl、mokutil 和 keyutils。但 是，在这个示例中，simple-kmod 内核模块没有签名，因此无法在启用了安全引导 (Secure Boot) 的系统中载入。 2.3.1. 在集群中构建并运行 simple-kmod 驱动程序容器 先决条件 流程 创建命名空间。例如： 1. YAML 定义了 ImageStream，用于存储 simple-kmod 驱动程序容器镜像，以及用于构建容器的 BuildConfig。将此 YAML 保存为 0000-buildconfig.yaml.template。 $ oc new-project simple-kmod-demo apiVersion: image.openshift.io/v1 io/v1 kind: ImageStream metadata: labels: app: simple-kmod-driver-container name: simple-kmod-driver-container namespace: simple-kmod-demo spec: {} --- apiVersion: build.openshift.io/v1 kind: BuildConfig