Linux Process Profiler

A high-performance Linux process profiling framework for monitoring and analyzing application behavior in real time. The profiler collects CPU, memory, thread, scheduling, and disk I/O metrics to help identify performance bottlenecks, optimize resource utilization, and improve system performance.

Designed for performance engineers, systems programmers, backend engineers, site reliability engineers (SREs), and platform engineers.

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Features

• Real-time process monitoring
• CPU utilization profiling
• Memory usage analysis
• Thread monitoring
• Process lifecycle tracking
• Disk I/O monitoring
• Context switch analysis
• File descriptor monitoring
• Multi-process monitoring
• JSON, CSV, and HTML report generation

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Collected Metrics

CPU

• CPU Utilization
• User Time
• System Time
• CPU Time
• CPU Affinity
• Scheduling Statistics

Memory

• Resident Set Size (RSS)
• Virtual Memory Size (VSZ)
• Shared Memory
• Peak Memory Usage
• Memory Growth

Threads

• Active Thread Count
• Thread State
• Thread Creation Rate

Disk I/O

• Read Operations
• Write Operations
• Read Bytes
• Write Bytes
• I/O Throughput

Process Information

• Process ID (PID)
• Parent Process ID
• Process State
• Start Time
• Running Time
• Command Line
• Open File Descriptors

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Performance Metrics

The framework measures:

• CPU Usage
• Memory Usage
• Disk Throughput
• Thread Count
• Context Switches
• Resource Utilization
• Peak Resource Consumption
• Process Runtime
• I/O Activity

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Example Output

PID:                 2456
Process:             nginx

CPU Usage:           18.6%
Memory (RSS):        162 MB
Virtual Memory:      514 MB
Threads:             12
Read Bytes:          1.84 GB
Write Bytes:         624 MB
Open Files:          37
Context Switches:    24,831
Running Time:        02:41:13

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Project Structure

Linux-Process-Profiler/

├── cmd/
├── internal/
│   ├── collector/
│   ├── profiler/
│   ├── metrics/
│   ├── parser/
│   ├── report/
│   └── utils/
├── configs/
├── examples/
├── reports/
├── docs/
├── scripts/
└── tests/

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Roadmap

Phase 1

• Process discovery
• CPU monitoring
• Memory monitoring
• Basic reporting

Phase 2

• Thread profiling
• Disk I/O monitoring
• Process tree visualization
• CSV and JSON reports

Phase 3

• Interactive terminal dashboard
• Historical metrics
• HTML reports
• Performance comparison

Phase 4

• eBPF integration
• Flame graph generation
• Prometheus exporter
• Grafana dashboards
• Continuous profiling

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Tech Stack

• Go
• Linux
• procfs
• Performance Profiling
• Systems Programming
• JSON
• CSV

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Target Users

• Performance Engineers
• Systems Engineers
• Backend Engineers
• Platform Engineers
• Site Reliability Engineers (SRE)
• DevOps Engineers
• Open Source Contributors

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Future Enhancements

• eBPF-based profiling
• Flame graph generation
• Prometheus metrics exporter
• Grafana dashboards
• Docker container profiling
• Kubernetes workload profiling
• Continuous performance regression detection
• REST API for remote profiling

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Contributing

Contributions are welcome. Feel free to submit issues, feature requests, performance improvements, or pull requests.

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License

This project is licensed under the MIT License.