<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>性能 on jimyag's Blog</title><link>https://jimyag.com/blog/%E6%80%A7%E8%83%BD/</link><description>jimyag 的个人博客，记录 Kubernetes、KubeVirt、Kube-OVN、Firecracker、Go 与云原生工程实践。</description><generator>Hugo</generator><language>zh-CN</language><copyright>Copyright © 2019, jimyag.</copyright><lastBuildDate>Tue, 10 Nov 2026 16:22:00 +0800</lastBuildDate><atom:link href="https://jimyag.com/blog/%E6%80%A7%E8%83%BD/index.xml" rel="self" type="application/rss+xml"/><item><title>用 perf 和 eBPF 观察 Linux CPU 与函数</title><link>https://jimyag.com/posts/linux-perf-ebpf-cpu-tracing/</link><pubDate>Thu, 05 Nov 2026 18:11:42 +0800</pubDate><guid>https://jimyag.com/posts/linux-perf-ebpf-cpu-tracing/</guid><description>对照等待和计算的 CPU 时间，拆读 perf 调用栈报告，再用 bpftrace 按成功和失败统计 openat 延迟。</description></item></channel></rss>