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.
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