CONFIG_IRQ_TIME_ACCOUNTING: Fine granularity task level IRQ time accounting

General informations

The Linux kernel configuration item CONFIG_IRQ_TIME_ACCOUNTING has multiple definitions:

Fine granularity task level IRQ time accounting found in init/Kconfig

The configuration item CONFIG_IRQ_TIME_ACCOUNTING:

• prompt: Fine granularity task level IRQ time accounting
• type: bool
• depends on: CONFIG_HAVE_IRQ_TIME_ACCOUNTING && ! CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
• defined in init/Kconfig
• found in Linux kernels: 3.7–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

Select this option to enable fine granularity task irq time accounting. This is done by reading a timestamp on each transitions between softirq and hardirq state, so there can be a small performance impact.

If in doubt, say N here.

Fine granularity task level IRQ time accounting found in arch/x86/Kconfig

The configuration item CONFIG_IRQ_TIME_ACCOUNTING:

• prompt: Fine granularity task level IRQ time accounting
• type: bool
• depends on: (none)
• defined in arch/x86/Kconfig
• found in Linux kernels: 2.6.37–2.6.39, 3.0–3.6

Help text

Select this option to enable fine granularity task irq time accounting. This is done by reading a timestamp on each transitions between softirq and hardirq state, so there can be a small performance impact.

If in doubt, say N here.

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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