# tanelpoder/0xtools

0x.Tools: X-Ray vision for Linux systems

Repository: https://github.com/tanelpoder/0xtools
Canonical: https://ross.abutalabs.com/products/0xtools
Homepage: https://tanelpoder.com/posts/xcapture-xtop-beta/
Language: Python
License: GPL-2.0
License Family: copyleft
Topics: linux, performance, troubleshooting, observability, ebpf
Last push: 2025-11-25T00:53:39+00:00

## Health v2 (maintenance only)
Score: 58/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 53, release rhythm 41, longevity 100
- inputs: {"age_days": 2709, "days_push": 282, "days_rel": 314, "gap_med": 43, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1818, forks 134 (observed 2026-08-28T04:05:40.676178+00:00)

## What it is
0x.tools is a set of Linux performance analysis tools (xcapture and xtop) that use modern eBPF to sample thread-level system activity such as sleeps, disk I/O waits, TCP connections, and stack traces. xcapture records samples to CSV/Parquet files, which xtop visualizes in a terminal UI powered by DuckDB.

## Use cases
- diagnose why processes or threads are sleeping or waiting on a Linux server
- sample kernel and user-level thread stack traces for performance troubleshooting
- analyze disk I/O waits and per-block-device latency drilldowns
- monitor TCP connection metrics at the thread level
- record always-on low-overhead system activity samples to CSV/Parquet for later analysis
- explore captured performance data interactively in a terminal UI

## When to choose
- you need fine-grained, thread-level visibility into Linux system behavior without heavyweight APM agents
- you want low-overhead eBPF-based sampling with offline analysis via DuckDB
- you are troubleshooting production Linux performance issues and need stack traces and wait-state breakdowns

## When to avoid
- you are not on Linux or your kernel is older than 5.11/5.14 (xcapture requires modern eBPF features)
- you need a turnkey monitoring dashboard with alerting rather than a sampling and analysis tool
- you need support for legacy kernels or non-Linux systems for live capture

## Facets
- artifact type: cli-tool
- maturity: active
- function: monitoring, tracing, developer-tools, terminal-ui, analytics
- domain: monitoring, performance, operating-systems, developer-tools
- platform: cli, python
- tags: ebpf, performance-analysis, system-troubleshooting, thread-sampling, duckdb, tui, xcapture, xtop, linux

## Member repositories
- tanelpoder/0xtools (main) score 58

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:40.676178+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:20:09.239522+00:00, confidence not recorded.
  - readme: https://github.com/tanelpoder/0xtools (fetched 2026-08-28T04:05:40.676178+00:00, sha 3505bdce73cc)
  - homepage: https://tanelpoder.com/posts/xcapture-xtop-beta/ (fetched 2026-08-29T10:59:26.449082+00:00, sha 91a555a6ac21)
  - site_page: https://tanelpoder.com/about (fetched 2026-08-29T10:59:26.458194+00:00, sha d54814e6b892)
- Data as of 2026-08-30T08:39:29.467469+00:00.