CONFIG_DRM_I915_TIMESLICE_DURATION: Scheduling quantum for userspace batches (ms, jiffy granularity)

General informations

The Linux kernel configuration item CONFIG_DRM_I915_TIMESLICE_DURATION:

• prompt: Scheduling quantum for userspace batches (ms, jiffy granularity)
• type: int
• depends on: (none)
• defined in drivers/gpu/drm/i915/Kconfig.profile
• found in Linux kernels: 5.5–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

When two user batches of equal priority are executing, we will alternate execution of each batch to ensure forward progress of all users. This is necessary in some cases where there may be an implicit dependency between those batches that requires concurrent execution in order for them to proceed, e.g. they interact with each other via userspace semaphores. Each context is scheduled for execution for the timeslice duration, before switching to the next context.

This is adjustable via /sys/class/drm/card?/engine/*/timeslice_duration_ms

May be 0 to disable timeslicing.

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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