Show HN: Xcapture-BPF – like Linux top, but with Xray vision (0x.tools)

Article summary

The article introduces Xcapture-BPF, a Linux tool that provides X-ray vision into system performance, allowing users to measure individual thread level activity, sleep states, system calls, and wait locations. It is designed to be simple to deploy and have minimal dependencies, making it easy to use for systematic troubleshooting. The tool uses eBPF and can be used to analyze application performance on Linux systems. It can also be used to query thread activity history for performance analysis.

Main themes

• Linux performance analysis
• eBPF
• System troubleshooting
• Thread-level activity measurement
• System call analysis

What commenters say

• eBPF is a powerful tool for tracing and observability in Linux, and its capabilities are still being explored and developed.
• DTrace and eBPF are different systems with different goals and approaches, and eBPF has become a more popular choice for Linux systems.
• The use of eBPF can help solve real-world problems, such as identifying performance bottlenecks and optimizing system configuration.
• There are different approaches to using eBPF, including using BCC tools or libbpf, each with their own advantages and limitations.
• eBPF can be used to capture call stacks and profile system performance, but this can come with some overhead and requires careful consideration of the trade-offs.
• Other tools, such as otel-profiling-agent and Beyla, also utilize eBPF for continuous profiling and observability.
• The community is actively exploring the potential of eBPF for various use cases, including debugging, security, and performance optimization.
• Some users have successfully used eBPF to solve complex problems, such as identifying and fixing memory leaks and optimizing disk I/O performance.