CONFIG_PROFILE_ALL_BRANCHES: Profile all if conditionals

General informations

The Linux kernel configuration item CONFIG_PROFILE_ALL_BRANCHES:

• prompt: Profile all if conditionals
• type: bool
• depends on: ! CONFIG_FORTIFY_SOURCE
• defined in kernel/trace/Kconfig
• found in Linux kernels: 2.6.29–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

This tracer profiles all branch conditions. Every if () taken in the kernel is recorded whether it hit or miss. The results will be displayed in:

/sys/kernel/tracing/trace_stat/branch_all

This option also enables the likely/unlikely profiler.

This configuration, when enabled, will impose a great overhead on the system. This should only be enabled when the system is to be analyzed in much detail.

Hardware

LKDDb

Raw data from LKDDb:

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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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