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ftrace
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<p>ftrace (Function Tracer) is a <a href="/facts/Tracing_(software)/36dskvN5">tracing</a> <a href="/facts/Software_framework/EWasA8sG">framework</a> for the <a href="/facts/Linux_kernel/dlkduHuA">Linux kernel</a>. Although its original name, Function Tracer, came from ftrace's ability to record information related to various <a href="/facts/Function_call/9vFJrg0A">function calls</a> performed while the <a href="/facts/Kernel_(operating_system)/uEj4U3Rz">kernel</a> is running, ftrace's tracing capabilities cover a much broader range of kernel's internal operations. </p>