Synchronization

Staying Safe

Thread Safety

Asynchronous Signal Safety

Preemption Safety

Considerations

• Read access frequency, and cardinality.

• Write access frequency, and cardinality.

• Needs changes be applied applied atomically across a set of data items?

• Resource management

Messaging Versus Shared Memory

Amdahl’s Law

Critical Section Length and Impact

C11 Atomics

Sequence Locks

Spinlocks and Ticketlocks

Read-Copy-Update

Per Core Data Structures

(Really per-thread data structures in DPDK.)