cgroup v2 Resource Control Cheat Sheet
Identify cgroup v2, apply CPU, memory, I/O, and task controls with systemd, inspect pressure and limit events, and understand safe hierarchy and delegation rules.
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Containers, Virtualization, and Performance
Isolate workloads, run virtual machines, control resources, and inspect performance.
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Containers, Virtualization, and Performance cheat sheets
Each guide includes copy-ready syntax, detailed examples, and authoritative references.
Containers with Podman Cheat Sheet
Run and operate rootless Podman containers with secure defaults, durable storage, health checks, Quadlet services, secrets, updates, and recoverable backups.
Open cheat sheetLinux Namespaces, unshare, and nsenter Cheat Sheet
Inspect Linux namespace membership, create scoped user, mount, PID, UTS, and network namespaces, and enter target namespaces safely with unshare, nsenter, and lsns.
Open cheat sheetLinux Performance Observability Cheat Sheet
Measure Linux CPU, memory, I/O, pressure, and per-process behavior with procps, sysstat, PSI, and perf using a production-safe workflow.
Open cheat sheetperf, ftrace, and eBPF Observability Cheat Sheet
Use Linux perf, ftrace, tracepoints, BPF, bpftool, and bpftrace for production observability with bounded overhead, symbol safety, and cleanup.
Open cheat sheetQEMU, KVM, and libvirt Cheat Sheet
Validate KVM hosts and operate libvirt virtual machines with safe lifecycle, storage, networking, guest-agent, backup, migration, and security practices.
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