Read this if

• ✓ You need to optimize system performance in cloud environments to reduce costs.
• ✓ You seek deep technical understanding of operating system performance.
• ✓ You want practical techniques and tools for advanced performance analysis.

Skip this for now if

• ✗ You are new to systems performance and seek an introductory guide.
• ✗ You prefer high-level architectural over deep operating system details.
• ✗ You expect hands-on coding tutorials for application-level tuning.