Ben Holmes

Serverless computing promises effortless resource elasticity, yet this vision remains fundamentally limited by cold-start delays. Despite years of optimization, many function invocations still incur delays of tens to hundreds of milliseconds, often exceeding the function’s actual execution time....

We present PeeR, a novel eBPF runtime that makes latency-critical eBPF programs preemptable and schedulable while maintaining low overhead. As eBPF programs grow more complex, they expose a fundamental gap: performance-critical hooks execute in a non-preemptable softirq context, which is invisibl...