# below
> A time traveling resource monitor for modern Linux systems

## Summary
Time-traveling resource monitor that records and replays system usage on Linux

## Capabilities
- Record system resource usage over time
- Replay historical resource data
- Monitor cgroup-level resource consumption
- Analyze CPU, memory, I/O, and network usage

## When to Use
- When investigating past system performance issues
- When monitoring cgroup resource consumption

## When NOT to Use
- On non-Linux platforms
- When you only need real-time monitoring

## Related Tools
- [ytop](/tools/ytop) (complementary)

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Source: https://littlescripts.sh/tools/below
