openstack/ironic-python-agent
Code Issues Proposed changes

Fix an issue with high cpu usage caused by ironic-python-agent

Browse Source 
Currently running of ipa-centos8-stable-ussuri image causes 100%
cpu usage while cleaning. Proposed change fixes this behavior and
significantly speeds up cleaning.

Change-Id: I2ba9a69f22b11830d8ff1bc346b17bf1a52f25b0
Story: #2007696
Task: #39809
This commit is contained in:
Fedor Tarasenko 2020-05-25 22:18:17 +03:00
parent f108b7a2d0
commit 952489020e
2 changed files with 9 additions and 1 deletions
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2
ironic_python_agent/agent.py
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@ -381,7 +381,7 @@ class IronicPythonAgent(base.ExecuteCommandMixin):
self.heartbeater.start() self.heartbeater.start()
try: try:
while self.serve_api: while self.serve_api:
eventlet.sleep(0) eventlet.sleep(0.1)
except KeyboardInterrupt: except KeyboardInterrupt:
LOG.info('Caught keyboard interrupt, exiting') LOG.info('Caught keyboard interrupt, exiting')
self.api.stop() self.api.stop()

8
releasenotes/notes/fix-high-cpu-usage-eventlet-1dccf3b81dd42c47.yaml Normal file
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@ -0,0 +1,8 @@
---
fixes:
- |
Fixes an issue with high cpu usage caused by ironic-python-agent greenthread
eventlent implementation.
Using eventlet.sleep(0.1) instead of eventlet.sleep(0) gives other processes
of IPA more cpu time to run.