e76c1ae972
* Initial work on rapl-daemon. Initial server set up. API to read max power per zone and API to write new power cap have both been written. * Removing python script since this has been ported to go code now. * Adding test for happy path retrieving max power. * Change some data types around to avoid too much conversion. * Add happy path test for cap zone * Removing uncessary print statement. * Change cap node to use a temporary setup. * Renaming arguments to be more descriptive. * Changing todo message. * Changing test structure to only set up mock subsystem once and allowing functions to test on it later. * Adding some more coverage for unhappy paths and fixing some values to reflect they are no longer floats. * Keeping the old script around as it should be removed in a different PR. * Delegating percentage check to capNode function. * Fixing typo. * Fixing typos. * Changing shortWindow to longWindow as constraint_0 actually points to the long window. * Renaming variable in test. * capping funciton now returns which zones were sucessfully capped and which zones could not be capped. This information is now returned to the caller of the HTTP api.
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782 B
Markdown
39 lines
No EOL
782 B
Markdown
# RAPL Daemon
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This runs a server that is capable of changing the percentage at which
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a node is being throttled to using RAPL. This daemon should be installed
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on all worker nodes.
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### Sample payload for testing:
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```
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curl --header "Content-Type: application/json" \
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--request POST \
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--data '{"percentage":75}' \
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http://localhost:9090/powercap
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```
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### Payload
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```json
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{
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"percentage":75
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}
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```
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### Response
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The daemon will respond with a json payload containing zones that were
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successfully capped as well as the zones that were not capped.
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```json
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{
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"cappedZones": null,
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"failedZones": [
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"intel-rapl:0",
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"intel-rapl:1"
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],
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"error": "some zones were not able to be powercapped"
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}
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```
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Field error will not exist if failed zones is empty. |