Tag
deferred-work
- Feb 2, 2026 Softirqs and the Per-CPU Deferred Queue How the fixed softirq vector set, the per-CPU pending mask, and the budgeted processing loop cooperate, and why running twice on one CPU is a bug rather than a race. operating systems
- Jan 26, 2026 Top Halves and Bottom Halves Why an interrupt handler cannot sleep, how the split between immediate and deferred work is drawn, and what each deferral mechanism costs in latency and context. operating systems
- Jun 9, 2025 Durable Deferred Work and the Persistence Boundary How a work item survives process death, what must be written before an acknowledgement is sent, and why the durable record is the only scheduler that cannot be lost. mobile computing
- Jun 23, 2024 Retry Accounting When the Scheduler Chooses the Moment How attempt counts, backoff, and jitter interact with deferral, why a retry that waits for a maintenance window needs different arithmetic, and where budgets go wrong. mobile computing