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doc: Update sections example.

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Modify documention and example to better explain sections
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Marc Bonnici 2018-05-16 10:50:58 +01:00 committed by setrofim
parent b7c70aabae
commit 5c6cc87105
1 changed files with 11 additions and 9 deletions
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doc/source/how_tos/users/agenda.rst
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@ -437,20 +437,19 @@ Sections
--------
It is a common requirement to be able to run the same set of workloads under
different device configurations. E.g. you may want to investigate impact of
different device configurations. E.g. you may want to investigate the impact of
changing a particular setting to different values on the benchmark scores, or to
quantify the impact of enabling a particular feature in the kernel. WA allows
this by defining "sections" of configuration with an agenda.
For example, suppose what we really want, is to measure the impact of using
interactive cpufreq governor vs the performance governor on the three
benchmarks. We could create another three workload spec entries similar to the
ones we already have and change the sysfile value being set to "interactive".
However, this introduces a lot of duplication; and what if we want to change
spec configuration? We would have to change it in multiple places, running the
risk of forgetting one.
For example, suppose that we want to measure the impact of using 3 different
cpufreq governors on 2 benchmarks. We could create 6 separate workload specs
and set the governor runtime parameter for each entry. However, this
introduces a lot of duplication; and what if we want to change spec
configuration? We would have to change it in multiple places, running the risk
of forgetting one.
A better way is to keep the three workload specs and define a section for each
A better way is to keep the two workload specs and define a section for each
governor:
.. code-block:: yaml
@ -471,6 +470,9 @@ governor:
- id: inter
runtime_params:
cpu0_governor: interactive
- id: sched
runtime_params:
cpu0_governor: sched
workloads:
- id: 01_dhry
name: dhrystone