Hardware Breakpoint implementation in BCC Manali Shukla Aanandita Dhawan Maneesh Soni October 28, 2020 Hardware breakpoint Memory Used in debuggers Elegant mechanism to monitor memory access Perf hardware breakpoint implementation: mem:[:access] [Hardware breakpoint] Example: perf stat -e mem:0xffffffffbb65f478:rw 01 https://www

Being Friendly to Your Hardware Performance Engineering A gentle introduction to hardware for software engineers 2Where does C++ run? 3On an abstract C++ machine 4On an abstract C++ machine? specialty instructions, on-core and off- core accelerators • Data layout: both software and hardware characteristics 84 src dst • Alignment: source and destination • Size • Direction • LinearityExample

to all digitalization scenarios. This ecosystem empowers enterprises to develop their software, hardware, and application ecosystems. Development Roadmap 2021.12 1+ million openEuler-based installations eNFS boasts three key innovations. • It enables second-level failover in the event of software or hardware faults on I/O paths. It also ensures multiple links between the client and server for each single Interface (MPI) libraries are needed for compilation. Additionally, the application of multiple hardware-related parallel and communication technologies lead to the increasing complexity of porting between

3.1.2 64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 3.3 General settings . . . . . . . . . . 77 4.5 Hardware-accelerated video . . . . . . . . . . . . . . . . . . . . . . . . . 78 4.5.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . 78 4.5.2 Hardware 2D video acceleration via Internal Networking . . . . . . . . . . . 99 6 Virtual networking 101 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . 101 6.2 Introduction to networking modes . . .

64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.3 General settings . 64 4.4 Hardware-accelerated graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 4.4.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . . . . . 64 4.4.2 Hardware 2D video acceleration . . . . . . . . . . . . . . . . . . . . . . 82 6 Virtual networking 83 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 6.2 Introduction to networking modes

64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.3 General settings . 65 4.4 Hardware-accelerated graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 4.4.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . . . . . 65 4.4.2 Hardware 2D video acceleration . . . . . . . . . . . . . . . . . . . . . . 83 6 Virtual networking 84 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 6.2 Introduction to networking modes

64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.3 General settings . 64 4.4 Hardware-accelerated graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 4.4.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . . . . . 64 4.4.2 Hardware 2D video acceleration . . . . . . . . . . . . . . . . . . . . . . 82 6 Virtual networking 83 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 6.2 Introduction to networking modes

64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.3 General settings . 63 4.4 Hardware-accelerated graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4.4.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . . . . . 63 4.4.2 Hardware 2D video acceleration . . . . . . . . . . . . . . . . . . . . . . 80 6 Virtual networking 82 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 6.2 Introduction to networking modes

64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.3 General settings . 67 4.4 Hardware-accelerated graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 4.4.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . . . . . 67 4.4.2 Hardware 2D video acceleration . . . . . . . . . . . . . . . . . . . . . . 86 6 Virtual networking 87 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 6.2 Introduction to networking modes

64-bit guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 3.2 Emulated hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3.3 General settings . 65 4.4 Hardware-accelerated graphics . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 4.4.1 Hardware 3D acceleration (OpenGL and Direct3D 8/9) . . . . . . . . . 65 4.4.2 Hardware 2D video acceleration . . . . . . . . . . . . . . . . . . . . . . 84 6 Virtual networking 85 6.1 Virtual networking hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 6.2 Introduction to networking modes