Topic

latency

8 posts

chokidar vs @parcel/watcher: 603 ms vs 61 ms to Ready

6 Oct 20268 min read

gc.collect Cost Empty vs Cycles: Localhost Lab

Hands-on gc.collect cost empty vs cyclic garbage lab: real collect latency plus reclaim counts, measured on Linux localhost today in this lab for SREs.

1 Oct 20264 min read

ChainMap vs Merged Dict Lookup: Localhost Lab

Hands-on collections.ChainMap vs merged dict config lookup: real ops/s on layered keys, measured on Linux localhost today in this hands-on lab for SREs.

1 Oct 20263 min read

HTTP Keep-Alive vs Connection: close: Localhost Numbers and a Simulated-RTT Trap

30 Sept 20267 min read

Go GC + Swap on a Tiny VPS: Stop Thrashing Before the OOM Killer

29 Sept 202613 min read

p50 vs p95 vs p99 Latency: Why Your Average Graph Lies

Average latency hides tail pain. Learn when mean lies, how p50/p95/p99 work, why averaging quantiles fails, and how Prometheus histograms fix aggregation.

29 Sept 202611 min read

How to Read Server Monitoring Graphs

A framework for turning dashboard noise into a diagnosis, based on the four golden signals and the symptom-versus-cause split — summarized from kciter's guide, with the author's hands-on verdict still to come.

22 Sept 20266 min read

How to Read Server Monitoring Graphs

A framework for diagnosing dashboards: symptoms first, causes second, and why the average response time metric is lying to you.

10 Sept 20266 min read