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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.

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

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

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

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

Project Structure

Linux-Process-Profiler/

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

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

Tech Stack

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

Target Users

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

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

Contributing

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

License

This project is licensed under the MIT License.