Back to directory

Brendan

Agent skill
1 skill

Invoke when a system is slow, saturated, regressed, or near capacity and you are tempted to guess the bottleneck or reach for a random tool — Brendan Gregg's systems-performance methodology. Covers the USE method (check utilization, saturation, errors for EVERY resource), the 60-second triage checklist, TSA / thread-state, workload-characterization / drill-down / latency methods, the per-resource Linux tool checklist (vmstat, mpstat, iostat, sar, pidstat, perf, bpftrace/bcc), and GPU performance counters (nvidia-smi, dmon/pmon, DCGM, XID/ECC/NVLink, Nsight). Use for capacity, latency, throughput, "where is the bottleneck", and CPU/memory/disk/network/GPU questions.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategoryGeneralStars0

About this skill

Invoke when a system is slow, saturated, regressed, or near capacity and you are tempted to guess the bottleneck or reach for a random tool — Brendan Gregg's systems-performance methodology. Covers the USE method (check utilization, saturation, errors for EVERY resource), the 60-second triage checklist, TSA / thread-state, workload-characterization / drill-down / latency methods, the per-resource Linux tool checklist (vmstat, mpstat, iostat, sar, pidstat, perf, bpftrace/bcc), and GPU performance counters (nvidia-smi, dmon/pmon, DCGM, XID/ECC/NVLink, Nsight). Use for capacity, latency, throughput, "where is the bottleneck", and CPU/memory/disk/network/GPU questions.

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 974466d8a970a2ca22f68d0fdf54e03e916190c69a3dc8db671f546b695fd9f5

About scan coverage and limitations

About this listing

Category
General
Reported license
MIT
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Brendan | Agent Skills Atlas