--- title: "Posts about performance testing | Speedscale" description: "Browse posts in the performance testing category." canonical: "https://speedscale.com/blog/category/performance-testing/" --- # Posts about performance testing Browse 18 posts in this category [![Holiday readiness: run your first load test with skills](https://speedscale.com/_astro/load-test-result.p3PABOMt_uMuku.webp)](https://speedscale.com/blog/holiday-readiness-proxymock-skills/) Oct 6, 2026 ### [Holiday readiness: run your first load test with skills](https://speedscale.com/blog/holiday-readiness-proxymock-skills/) Start holiday readiness with a local proxymock load test. Use agent skills to record a Node app, mock its API dependency, and inspect the results. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [by Ken Ahrens](https://speedscale.com/blog/author/ken-ahrens/) [![Test Your MySQL 8.4 Upgrade With Real App Queries](https://speedscale.com/_astro/featured-image.CHm1I__d_2wbnrB.webp)](https://speedscale.com/blog/mysql-load-regression-testing-real-queries/) Sep 25, 2026 ### [Test Your MySQL 8.4 Upgrade With Real App Queries](https://speedscale.com/blog/mysql-load-regression-testing-real-queries/) Replay your app's recorded MySQL statements against 8.4 to catch upgrade regressions, then load test the database with the same workload using proxymock. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![$4.48 a Gallon: Your Holiday Checkout Is the New Mall](https://speedscale.com/_astro/fewer-trips-bigger-carts.CYc6nSpa_wNL9v.webp)](https://speedscale.com/blog/holiday-checkout-is-the-new-mall/) Sep 24, 2026 ### [$4.48 a Gallon: Your Holiday Checkout Is the New Mall](https://speedscale.com/blog/holiday-checkout-is-the-new-mall/) Prepare your checkout for Black Friday with production traffic replay, peak-load tests, and partner API failure rehearsals before the holiday code freeze. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Load testing](https://speedscale.com/blog/category/load-testing/) [by Alan Mon](https://speedscale.com/blog/author/alan-mon/) [![Test PostgreSQL With the Queries Your App Actually Runs](https://speedscale.com/_astro/featured-image.BFaUVvHc_1mQmcW.webp)](https://speedscale.com/blog/postgres-load-regression-testing-real-queries/) Sep 24, 2026 ### [Test PostgreSQL With the Queries Your App Actually Runs](https://speedscale.com/blog/postgres-load-regression-testing-real-queries/) Replay recorded PostgreSQL queries to catch schema regressions and run realistic database load tests with proxymock, using the CLI or an AI assistant. [Performance testing](https://speedscale.com/blog/category/performance-testing/) [Traffic Replay](https://speedscale.com/blog/category/traffic-replay/) [Developer tools](https://speedscale.com/blog/category/developer-tools/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![Explain Non-CPU Latency With Prometheus + proxymock](https://speedscale.com/_astro/featured-image.BRWtv9NC_Z1BKjlv.webp)](https://speedscale.com/blog/explain-non-cpu-latency-prometheus-proxymock/) Aug 13, 2026 ### [Explain Non-CPU Latency With Prometheus + proxymock](https://speedscale.com/blog/explain-non-cpu-latency-prometheus-proxymock/) Diagnose a p95 latency regression that CPU profiling cannot explain using Prometheus histograms, then prove the fix with identical proxymock replays. [Observability](https://speedscale.com/blog/category/observability/) [AI/ML](https://speedscale.com/blog/category/ai/ml/) [Performance testing](https://speedscale.com/blog/category/performance-testing/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![Observe Opaque Services With OpenTelemetry eBPF + proxymock](https://speedscale.com/_astro/featured-image.DdcpmwFf_Z21Y9jl.webp)](https://speedscale.com/blog/observe-opaque-service-opentelemetry-ebpf-proxymock/) Aug 12, 2026 ### [Observe Opaque Services With OpenTelemetry eBPF + proxymock](https://speedscale.com/blog/observe-opaque-service-opentelemetry-ebpf-proxymock/) Discover endpoints, RED metrics, and traces in an opaque Kubernetes service with OpenTelemetry eBPF Instrumentation, then replay traffic with proxymock. [Observability](https://speedscale.com/blog/category/observability/) [AI/ML](https://speedscale.com/blog/category/ai/ml/) [Performance testing](https://speedscale.com/blog/category/performance-testing/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![Diagnose Serial N+1 API Calls With Tempo + proxymock](https://speedscale.com/_astro/featured-image.Di_wCb8V_Z2rwo7G.webp)](https://speedscale.com/blog/diagnose-n-plus-one-tempo-proxymock/) Aug 11, 2026 ### [Diagnose Serial N+1 API Calls With Tempo + proxymock](https://speedscale.com/blog/diagnose-n-plus-one-tempo-proxymock/) Diagnose serial N+1 API calls with Tempo and proxymock. Replay recorded traffic, inspect trace windows, and prove a concurrency fix preserves behavior. [Observability](https://speedscale.com/blog/category/observability/) [AI/ML](https://speedscale.com/blog/category/ai/ml/) [Performance testing](https://speedscale.com/blog/category/performance-testing/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![The Pod Was Cheaper. The Service Wasn’t.](https://speedscale.com/_astro/featured-image.Jrko02vG_1pATcO.webp)](https://speedscale.com/blog/the-cheaper-pod-cost-more/) Aug 11, 2026 ### [The Pod Was Cheaper. The Service Wasn’t.](https://speedscale.com/blog/the-cheaper-pod-cost-more/) Use OpenCost and proxymock to prove Kubernetes rightsizing lowers cost per successful request without hiding behavior or throughput regressions in testing. [Kubernetes](https://speedscale.com/blog/category/kubernetes/) [Observability](https://speedscale.com/blog/category/observability/) [Performance testing](https://speedscale.com/blog/category/performance-testing/) [AI/ML](https://speedscale.com/blog/category/ai/ml/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) [![Flamegraphs Find It. Replay Proves It.](https://speedscale.com/_astro/featured-image.BQlXZDjh_ca3Uk.webp)](https://speedscale.com/blog/flamegraphs-find-it-replay-proves-it/) Jul 31, 2026 ### [Flamegraphs Find It. Replay Proves It.](https://speedscale.com/blog/flamegraphs-find-it-replay-proves-it/) Use Grafana Pyroscope and proxymock with an AI coding agent to find a Go CPU hotspot, preserve API behavior, and verify the performance fix. [Observability](https://speedscale.com/blog/category/observability/) [AI/ML](https://speedscale.com/blog/category/ai/ml/) [Performance testing](https://speedscale.com/blog/category/performance-testing/) [by Matt LeRay](https://speedscale.com/blog/author/matt-leray/) ## Try Speedscale free Choose the desktop proxymock or the hosted cloud trial to get started. [Free Desktop Tool](https://docs.speedscale.com/proxymock/getting-started/installation/) [Free Cloud Trial](https://app.speedscale.com/signup)