rhtyd opened a new pull request #2892: sysctl: don't use swap until ram reaches 95% usage URL: https://github.com/apache/cloudstack/pull/2892 This tries to provide a threshold based fix for #2873 where swappinness of VR is controlled until memory usage is hit 95%. By limiting swappiness unless actually needed, the VR system degradation can be avoided for most cases. ## Types of changes <!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: --> - [ ] Breaking change (fix or feature that would cause existing functionality to change) - [ ] New feature (non-breaking change which adds functionality) - [x] Bug fix (non-breaking change which fixes an issue) - [ ] Enhancement (improves an existing feature and functionality) - [ ] Cleanup (Code refactoring and cleanup, that may add test cases) ## How Has This Been Tested? The default swapiness on VRs is 60, by reducing the value swapiness it is anticipated that swappiness will not be normally seen. I could not reproduce the swapping so could not test it.
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