linux-perf SKILL.md skillA

linux-perf from intel/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add intel/skills/linux-perf@git:20260903.b1ad034

Pins git:20260903.b1ad034 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
intel/skills
Path
skills/linux-perf/SKILL.md
Versions recorded
1
Latest version
git:20260903.b1ad034, committed Sep 3, 2026
Size
12,392 bytes
Repository stars
29
License
Apache-2.0

Profile and fix Linux performance problems using `perf`. Workflows: (A) hardware counters -- IPC, cache-miss, branch mispredictions; (B) hotspot profiling -- which functions and source lines consume CPU, with SIMD and accumulator detection; (C) cache-line contention -- false sharing, HITM, `perf c2c`; (D) core-count scaling -- dual-profile comparison, bottleneck categorization; (E) structured hotspot report with annotated source and pattern observations. Resolution strategies: TTAS spinlock…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

<!-- (C) 2026 Intel Corporation, MIT license -->

# Linux perf profiling skill

Guide the user through profiling with Linux `perf` — from setup and data collection through reporting and interpretation.

The skill is organized into five parts:
- **Part 1: Setup** — permissions and build flags (always check these first)
- **Part 2: Flows** — end-to-end workflows (A: quick stats, B: hotspot profiling, C: cache contention)
- **Part 3: Cross-skill integrations** and **Reference** — when to delegate, and quick lookup tables
- **Part 4: Building blocks** — focused data collection primitives that flows and other skills can call directly
- **Part 5: Resolution strategies** — common fix patterns that flows can reference by name

---

# Part 1: setup

## Check permissions (always do this first)

```bash
cat /proc/sys/kernel/perf_event_paranoid
```

- **≤ 1**: no `sudo` needed for most data collection
- **2 or higher**: hardware events (cycles, cache-misses, etc.) require root

To lower the limit (ask the user first):
```bash
echo 0 | sudo tee /proc/sys/kernel/perf_event_paranoid
```
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add intel/skills/linux-perf@sha256:7ee3edf81a451a15

The line at the top of this page pins the label git:20260903.b1ad034, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_fyd2y3ghlshfwzwi.svg)](https://markdownregistry.com/a/art_fyd2y3ghlshfwzwi)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 3, 2026.

versioncommittedcommitsizeaudit
git:20260903.b1ad034 latest2026-09-03 b1ad034 12,392 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12392 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

intel/skills · 29 stars · license Apache-2.0 · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_fyd2y3ghlshfwzwi
GET https://markdownregistry.com/api/v1/resolve?ref=intel/skills/linux-perf
GET https://markdownregistry.com/api/v1/blob/7ee3edf81a451a157e836721632ae074b796815b6990ccf962a170d3b667ba1d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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