linux/sched/sd_flags.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * sched-domains (multiprocessor balancing) flag declarations.
15  * is usually because the flag describes some shared resource (all CPUs in that
17  * behaviour that we want to disable at some point in the hierarchy for
20  * In those cases it doesn't make sense to have the flag set for a domain but
21  * not have it in (some of) its children: sched domains ALWAYS span their child
22  * domains, so operations done with parent domains will cover CPUs in the lower
40  * involves equalizing a metric between groups), or for flags describing some
41  * shared resource (which would be shared between groups).
89  * NEEDS_GROUPS: Per-CPU capacity is asymmetric between groups.
99  * NEEDS_GROUPS: Per-CPU capacity is asymmetric between groups.
108  * NEEDS_GROUPS: Capacity is shared between groups.
115  * NEEDS_GROUPS: Clusters are shared between groups.
124  * NEEDS_GROUPS: Caches are shared between groups.
135  * NEEDS_GROUPS: No point in preserving domain if it has a single group.
140  * Place busy tasks earlier in the domain
147  * Prefer to place tasks in a sibling domain
165  * Cross-node balancing
168  * NEEDS_GROUPS: No point in preserving domain if it has a single group.