OrgACRN
/
acrn-hypervisor
mirror of https://github.com/projectacrn/acrn-hypervisor.git
1
0
Fork 0
Code Issues Releases Wiki Activity

doc: update rdt doc with real-time vCPU option clarification 

Improve explanation of the Real-time vCPU option checkbox.

[External_System_ID] ACRN-9307

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
This commit is contained in:
David B. Kinder 2022-08-16 11:30:53 -07:00 committed by David Kinder
parent b026238a69
commit f2dacfa30c
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
doc/tutorials/rdt_configuration.rst
View File

@ -8,7 +8,7 @@ About Intel Resource Director Technology (RDT)
On x86 platforms that support Intel Resource Director Technology (RDT)
allocation features, the ACRN hypervisor can help minimize cache misses by
partitioning the shared cache among VMs. “Shared cache” refers to cache that is
partitioning the shared cache among VMs. "Shared cache" refers to cache that is
shared among multiple CPU cores. By default, VMs running on these cores are
configured to use the entire cache, effectively sharing the cache among all VMs
and without any partitioning. This design choice may cause too many cache misses
@ -100,6 +100,13 @@ Parameters**:
VM type from Real-time to Standard, the ACRN Configurator disables the
Real-time vCPU check box.
Some vCPUs of an RTVM may be used for housekeeping tasks and not need the
real-time performance optimization provided by advanced cache configuration
isolation. You indicate this by leaving this Real-time vCPU option unchecked.
Housekeeping tasks are generally related to kernel tasks to maintain its
internal state and services such as updating internal statistics for the
scheduler or timers, and User VM launch or exit.
.. image:: images/configurator-rt01.png
:align: center
:class: drop-shadow