CONFIG_PROFILE_ANNOTATED_BRANCHES: Trace likely/unlikely profiler

General informations

The Linux kernel configuration item CONFIG_PROFILE_ANNOTATED_BRANCHES:

• prompt: Trace likely/unlikely profiler
• type: bool
• depends on: (none)
• defined in kernel/trace/Kconfig
• found in Linux kernels: 2.6.31–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12

Help text

This tracer profiles all likely and unlikely macros in the kernel. It will display the results in:

/sys/kernel/tracing/trace_stat/branch_annotated

Note: this will add a significant overhead; only turn this on if you need to profile the system's use of these macros.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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