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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
commit9f0fc191371843c4fc000a226b0a26b6c059aacd (patch)
tree35f8be3ef04506ac891ad001e8c41e535ae8d01d /Documentation/scheduler/sched-capacity.rst
parentReleasing progress-linux version 6.6.15-2~progress7.99u1. (diff)
downloadlinux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz
linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/scheduler/sched-capacity.rst')
-rw-r--r--Documentation/scheduler/sched-capacity.rst13
1 files changed, 7 insertions, 6 deletions
diff --git a/Documentation/scheduler/sched-capacity.rst b/Documentation/scheduler/sched-capacity.rst
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+++ b/Documentation/scheduler/sched-capacity.rst
@@ -39,14 +39,15 @@ per Hz, leading to::
-------------------
Two different capacity values are used within the scheduler. A CPU's
-``capacity_orig`` is its maximum attainable capacity, i.e. its maximum
-attainable performance level. A CPU's ``capacity`` is its ``capacity_orig`` to
-which some loss of available performance (e.g. time spent handling IRQs) is
-subtracted.
+``original capacity`` is its maximum attainable capacity, i.e. its maximum
+attainable performance level. This original capacity is returned by
+the function arch_scale_cpu_capacity(). A CPU's ``capacity`` is its ``original
+capacity`` to which some loss of available performance (e.g. time spent
+handling IRQs) is subtracted.
Note that a CPU's ``capacity`` is solely intended to be used by the CFS class,
-while ``capacity_orig`` is class-agnostic. The rest of this document will use
-the term ``capacity`` interchangeably with ``capacity_orig`` for the sake of
+while ``original capacity`` is class-agnostic. The rest of this document will use
+the term ``capacity`` interchangeably with ``original capacity`` for the sake of
brevity.
1.3 Platform examples