Werk #4725: Significant improvement of Check_MK check helper memory usage
| Component | Core & setup | ||||
| Title | Significant improvement of Check_MK check helper memory usage | ||||
| Date | May 18, 2017 | ||||
| Level | Prominent Change | ||||
| Class | Bug Fix | ||||
| Compatibility | Compatible - no manual interaction needed | ||||
| Checkmk versions & editions |
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The memory usage of the Check_MK check helpers, especially the growth that occures during runtime, has been reduced significantly.
One example which has been measured in a single site with 30 Check_MK check helpers configured and a large configuration (a lot of hosts, services, tags and rulesets):
Before this change it was executing 1000 service checks per second with a total memory usage of about 15 GB.
After this change it is now performing 1100 service checks per second with a total memory usage of 3.5(!) GB.
The exact memory reduction highly depends on the Check_MK configuration, but should be measurable in all medium to large environments.