https://perfsage.com/blog/ Performance engineering — JMeter analysis, p99 tail latency, SLO gates, Kubernetes RCA, and SRE lessons. en-us Wed, 17 Jun 2026 00:00:00 GMT https://perfsage.com/blog/5-minute-post-deploy-postmortem-signalpilot/ https://perfsage.com/blog/5-minute-post-deploy-postmortem-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. Wed, 17 Jun 2026 00:00:00 GMT Aashish Bajpai https://perfsage.com/blog/why-im-building-signalpilot-kubernetes-rca/ https://perfsage.com/blog/why-im-building-signalpilot-kubernetes-rca/ 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. Sun, 14 Jun 2026 00:00:00 GMT Aashish Bajpai https://perfsage.com/blog/introducing-perfsage-signalpilot-kubernetes-rca/ https://perfsage.com/blog/introducing-perfsage-signalpilot-kubernetes-rca/ 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. Sat, 13 Jun 2026 00:00:00 GMT Aashish Bajpai https://perfsage.com/blog/perfsage-reveal-analysis-playbook-which-chart-when/ https://perfsage.com/blog/perfsage-reveal-analysis-playbook-which-chart-when/ 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. Wed, 03 Jun 2026 00:00:00 GMT Aashish Bajpai https://perfsage.com/blog/the-p99-trap-why-your-load-test-passed-production-failed/ https://perfsage.com/blog/the-p99-trap-why-your-load-test-passed-production-failed/ 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. Sun, 31 May 2026 00:00:00 GMT Aashish Bajpai https://perfsage.com/blog/introducing-perfsage-reveal-jmeter-analysis/ https://perfsage.com/blog/introducing-perfsage-reveal-jmeter-analysis/ 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. Tue, 26 May 2026 00:00:00 GMT Aashish Bajpai https://perfsage.com/blog/public-api-bakeoff-with-perfsage-slo-reporter/ https://perfsage.com/blog/public-api-bakeoff-with-perfsage-slo-reporter/ 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. Sun, 05 Apr 2026 00:00:00 GMT Aashish Bajpai