<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Io-Pkt on 技术笔记</title><link>https://deguiliu.github.io/tech-notes/tags/io-pkt/</link><description>Recent content in Io-Pkt on 技术笔记</description><generator>Hugo -- 0.168.0</generator><language>zh-cn</language><lastBuildDate>Sun, 18 Oct 2026 23:30:00 +0000</lastBuildDate><atom:link href="https://deguiliu.github.io/tech-notes/tags/io-pkt/index.xml" rel="self" type="application/rss+xml"/><item><title>QNX 上的 PTPD 授时精度验证: 从 8 ms 时间戳台阶到百微秒级</title><link>https://deguiliu.github.io/tech-notes/posts/performance/qnx_ptpd_time_sync_accuracy/</link><pubDate>Sun, 18 Oct 2026 23:30:00 +0000</pubDate><guid>https://deguiliu.github.io/tech-notes/posts/performance/qnx_ptpd_time_sync_accuracy/</guid><description>基于 QNX ptpd2 从时钟的实测：定位 socket 时间戳约 8 ms 更新周期造成的 offset 台阶，区分 getTime 直读、ClockAdjust 调频与 ClockPeriod 的作用，并给出 ptpd2 日志、clockdiff、PPS 的三层验证方法。</description></item></channel></rss>