https://www.pistack.xyz/tags/kernel-tracing/ Recent content in Kernel-Tracing on Pi Stack Hugo en-us Mon, 25 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-25-linux-kernel-dynamic-tracing-trace-cmd-vs-systemtap-vs-perf-probe-guide/ Mon, 25 May 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-05-25-linux-kernel-dynamic-tracing-trace-cmd-vs-systemtap-vs-perf-probe-guide/ <p>Kernel dynamic tracing allows you to observe running Linux systems in real time — probing kernel functions, tracking system calls, measuring latency, and diagnosing performance bottlenecks without recompiling the kernel or restarting services. Three major toolchains dominate this space: <strong>trace-cmd</strong> (the ftrace frontend), <strong>SystemTap</strong> (Red Hat&rsquo;s scripting-based tracer), and <strong>perf probe</strong> (the perf subsystem&rsquo;s dynamic instrumentation interface).</p>