<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>Observability on Head First eBPF</title>
    <link>https://www.ebpf.top/tags/observability/</link>
    <description>Recent content in Observability on Head First eBPF</description>
    <generator>Hugo -- gohugo.io</generator>
    <language>zh-CN</language>
    <lastBuildDate>Wed, 21 Oct 2026 23:06:23 +0800</lastBuildDate>
    <atom:link href="https://www.ebpf.top/tags/observability/index.xml" rel="self" type="application/rss+xml" />
    <item>
      <title>跨区域流量被打满，HRT 用 eBPF 揪出元凶</title>
      <link>https://www.ebpf.top/post/hrt-ebpf-wan-attribution/</link>
      <pubDate>Wed, 21 Oct 2026 22:23:44 +0800</pubDate>
      <guid>https://www.ebpf.top/post/hrt-ebpf-wan-attribution/</guid>
      <description>本文地址：https://www.ebpf.top/post/hrt-ebpf-wan-attribution 1. 问题：服务日志能解释的流量，不是全部流量 2. 原理：大多数 TCP 收发最终都会经过 tcp_recvmsg 和 tcp_sendmsg 3. 做法：在内核里按分钟聚合，而不是逐条上报 4. 陷阱：NFS 让流量归属变成了 root 5. 对账：三方数据</description>
    </item>
  </channel>
</rss>
