Tail Latency
The high percentiles of latency (like P99 or P99.9) representing worst-case slow response times in distributed systems.
Definition
The high percentiles of latency (like P99 or P99.9) representing worst-case slow response times in distributed systems.
Use case
Debugging slow tail latency caused by sporadic garbage collection pauses on heavily loaded servers.
Related terms
Articles
The tail at scale
The original paper on why the slowest 1 percent dominates.