Clocks  Time Points  Dates  Time Zones 4 Agenda  Compile-Time Rational Numbers  Durations  Clocks  Time Points  Dates  Time Zones5 Compile-Time Rational Numbers  Defined 1>;9 Agenda  Compile-Time Rational Numbers  Durations  Clocks  Time Points  Dates  Time Zones10 Durations  Interval between two points in time  Represented by std::duration from 519 Agenda  Compile-Time Rational Numbers  Durations  Clocks  Time Points  Dates  Time Zones20 Clocks  Several clocks available in :  std::system_clock: wall clock time from system-wide

labels to affect the scheduler’s placement of pods. This is used to spread pods across availability zones, while still respecting resource access and availability concerns. When Kubernetes runs on vSphere Agenda 4 Kubernetes default scheduling How it works Utilizing Zones to improve scheduling Using vSphere tags to define regions and zones – add cloud provider What is NUMA? How to solve potential issues ranking is driven by priorities - this is extensible and configurable with a default list (e.g. zones) 8 Kubenetes scheduling What does the scheduler do: As pod are created, they are place in a queue

12 C++20’s Calendars and Time Zones in MSVC Miya Natsuhara ("MEE-yuh Not-soo-HAR-uh") Miya.Natsuhara@microsoft.com Software Engineer, Visual C++ LibrariesWelcome to CppCon 2021! Join IV: Leap Seconds • What are leap seconds? • How did we implement them in MSVC? • Part V: Time Zones • Overview of [time.zone] • IANA database challenges • Part VI: Conclusion7 Part I: Development time with respect to a not-yet- specified time zone • More to come on this when we get to time zones and related matters soon!24 clock_cast clock_cast allows you to convert a time_point for one clock

... ZoneNamedN(cleanzone, “cleanup”, true); ... } • ZoneNamed[N|C] • have multiple zones in the same scope • each “zone identifier” must be unique in that scope • creates a zone stack, not have multiple names • will show up in statistics! • increased runtime cost to record zone Transient zones may be necessary when instrumenting a module that can be loaded and unloaded throughout the lifecycle manipulations, … file, network, logging, … interrupts, user input activity, spurious wake-ups, … 47 Color zones appropriately Tips & Tricks• Idling • Waits • Sleeps • Lock acquisition (contention) • Memory operations

... ZoneNamedN(cleanzone, “cleanup”, true); ... } • ZoneNamed[N|C] • have multiple zones in the same scope • each “zone identifier” must be unique in that scope • creates a zone stack, not have multiple names • will show up in statistics! • increased runtime cost to record zone Transient zones may be necessary when instrumenting a module that can be loaded and unloaded throughout the lifecycle manipulations, … file, network, logging, … interrupts, user input activity, spurious wake-ups, … 47 Color zones appropriately Tips & Tricks• Idling • Waits • Sleeps • Lock acquisition (contention) • Memory operations

@ciura_victor - 2020: The Year of Sanitizers? Shadow Mapping Process Memory Shadow Memory 👈 Red zones my allocated memory ➡ 🧪☣ Poisoned memory84 2020 Victor Ciura | @ciura_victor - 2020: The ShadowByte(p)89 2020 Victor Ciura | @ciura_victor - 2020: The Year of Sanitizers? Heap Red Zones alloc 1 alloc 2 alloc 3 alloc 4 alloc 5 alloc 1 alloc 2 alloc 3 alloc 4 alloc 5 malloc() ASAN ASAN malloc()90 2020 Victor Ciura | @ciura_victor - 2020: The Year of Sanitizers? Heap Red Zones alloc 1 alloc 2 alloc 3 alloc 4 alloc 5 ASAN malloc() alloc 1 alloc 2 alloc 3 alloc 4 alloc 5 Shadow

Code debugging Demo C++20 in action Thu, Oct 28 – 10:30am C++20’s Calendars and Time Zones in MSVC Miya Natsuhara – `Online _4 Tue, Oct 26 – 10:30am Documentation in The Era of Concepts WSL 2, and more – Sy Brand & Marian Luparu Thursday 28th • C++20’s Calendars and Time Zones in MSVC – Miya Natsuhara • An Editor Can Do That? Debugging Assembly Language and GPU Kernels in

VirtualBox CoreDumper on Solaris hosts . . . . . . . . . . . . . 217 9.19 VirtualBox and Solaris kernel zones . . . . . . . . . . . . . . . . . . . . . . . . . 218 9.20 Locking down the VirtualBox GUI . . . global zone as the VirtualBox installer loads kernel drivers which cannot be done from non-global zones. To verify which zone you are currently in, execute the zonename command. Execute the following commands: VirtualBox would be installed in /opt/VirtualBox. Note: If you need to use VirtualBox from non-global zones, please read chapter 2.4.6, Configuring a zone for running VirtualBox, page 45. 44 2 Installation

VirtualBox CoreDumper on Solaris hosts . . . . . . . . . . . . . 216 9.19 VirtualBox and Solaris kernel zones . . . . . . . . . . . . . . . . . . . . . . . . . 217 9.20 Locking down the VirtualBox GUI . . . global zone as the VirtualBox installer loads kernel drivers which cannot be done from non-global zones. To verify which zone you are currently in, execute the zonename command. Execute the following commands: VirtualBox would be installed in /opt/VirtualBox. Note: If you need to use VirtualBox from non-global zones, please read chapter 2.4.6, Configuring a zone for running VirtualBox, page 45. 44 2 Installation

· · · · · 1202 7.7.8 How to understand the relationship between the TiCDC time zone and the time zones of the upstream/downstream databases? · · · · · · · · · · · · · 1202 7.7.9 What is the default behavior · · · · · · · · · · · · · · · · · · · · · · · 2159 12 Tutorials 2236 12.1 Multiple Availability Zones in One Region Deployment · · · · · · · · · · · · · · · · · · · · 2236 12.1.1 Raft protocol · · · deployment· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2237 12.2 Three Availability Zones in Two Regions Deployment · · · · · · · · · · · · · · · · · · · · · 2243 12.2.1 Overview · · · ·