Browse incidents, troubleshooting guides, AI diagnostics, verified fixes and community discussions related to Performance.
## Environment MacBook Pro 14" (M1 Pro) running macOS 14.2 with a Thunderbolt 4 docking station. Dock provides two 4K displays, Gigabit Ethernet, and a bus-powered USB‑C audio interface (class-compliant) used at 96 kHz/24-bit. Power adapter connecte...
## Environment MacBook Pro 16-inch (Apple silicon), macOS 14.1; external HDMI monitor connected via Thunderbolt 4 dock that exposes a DisplayPort-to-HDMI adapter; HDR enabled in System Settings; app (video player) uses Metal with GPU selection hint ...
## Environment Next.js 13 app deployed on Ubuntu 22.04 VMs managed by PM2 cluster mode (4 worker processes). Production uses proxy (NGINX) and networked log aggregation. Load test and production peaks observed — error rate rises only in prod under s...
## Environment Small office: 3 identical enterprise 802.11ac APs (vendor firmware v3.2.1), controller-managed SSID on 5 GHz only, mixed client set (laptops, smartphones). Airtime-fairness and TX power auto enabled via controller at 02:00 during main...
## Environment On-prem Kubernetes 1.23 control plane, 5 worker nodes (Ubuntu 20.04, Docker 20.10.12, kubelet configured with cgroupDriver=systemd). Workers: 128GB RAM, 32 vCPU. Applications deployed as Deployments with requests/limits set (example: ...
## Environment Go 1.20 gRPC server (google.golang.org/grpc v1.55), running on Debian 12 VMs behind AWS NLB; clients are varied (Go, Java) making 1000+ concurrent unary RPCs per second to the same server instance. ## Symptoms Clients intermittently...
## Environment PostgreSQL 13.7 primary on Debian 11 (8-core VM), three synchronous replicas on separate hosts. Streaming replication over TLS (server certs) through a TCP load balancer that enforces SSL session renegotiation every 60s. wal_level = r...
## Environment Linux laptop (Ubuntu 22.04, kernel 5.15) using a bus-powered USB 3.0 hub to connect a class-compliant USB DAC (USB audio 2.0). Dropouts and crackling occur when CPU load increases (e.g., compiling or running heavy browser workloads). ...
## Environment MacBook Pro (Apple Silicon M1 Pro) running macOS 13.5 connected via USB‑C dock to an external 4K HDR-capable HDMI monitor. The MacBook is used in clamshell mode (lid closed) with external keyboard and mouse. Built-in display disabled ...
## Environment Java Spring Boot application (OpenJDK 11, PostgreSQL JDBC driver 42.x) connecting via a connection pool (HikariCP) to PostgreSQL 13 on Debian. The app issues parameterized queries against a large date-partitioned table using PreparedS...