The PerfSage Blog
Practical performance engineering — SLOs, reliability patterns, JMeter deep dives, and lessons from real incidents. No fluff. Subscribe via RSS.
8 posts
3 Fault-Injection Experiments to Run Before Your First Chaos Engineering Game Day
Most teams' first chaos experiment is killing a random pod in prod with no baseline. Here are 3 safer, higher-signal fault injections to run first — in the order that actually builds confidence.
5-Minute Post-Deploy Postmortem with SignalPilot
SignalPilot v1.0 is live — open-source Kubernetes RCA that correlates deploy diffs, events, metrics, logs, and git into ranked findings with kubectl fixes. Here's a real walkthrough and how it cuts post-deploy MTTR.
I Got Tired of 3-Hour Post-Deploy War Rooms — So I'm Building SignalPilot
Post-deploy errors in Kubernetes used to cost me hours. Enterprise RCA tools cost a fortune. I'm building SignalPilot — open-source RCA that correlates deploy diffs, events, metrics, logs, and git into ranked findings with kubectl fixes.
Deploy Broke Prod Again — So I Built PerfSage SignalPilot
After one too many post-deploy war rooms staring at kubectl and Grafana separately, I built SignalPilot — an open-source Kubernetes RCA copilot that correlates deploy diffs, events, metrics, logs, and git into ranked findings with kubectl fixes.
The Reveal Playbook: Which Chart to Open First (and Which KPI Actually Matters)
Stop staring at 29 charts in random order. A performance engineer's decision tree for PerfSage Reveal — symptom → visualization → KPI → next move. Real public-API demo, every screenshot included.
The P99 Trap: Why Your Load Test Passed and Production Still Complained
Averages lie. I learned that the hard way — twice in the same week. Here's how heavy tails hide in green dashboards, and the percentile checks that catch them before users do.
JMeter Gave Me Reports. I Needed Answers — So I Built PerfSage Reveal
After years of drowning in JMeter HTML dashboards that report data but never explain it, I built PerfSage Reveal — upload a JTL, get expert charts, SLO verdicts, and actionable insights in one Docker command. Here's the real demo.
I Couldn't Gate JMeter on SLOs — So I Fixed It for Good
How one CI pipeline assignment exposed a gap in JMeter's ecosystem, and how PerfSage SLO Reporter fills it — with a real 5-API validation run to prove it.
PerfSage open-source tools
From load-test analysis to CI gates and post-deploy RCA — the full ladder.