6,534
edits
Changes
it's indeed enchanted!
* [dcache] introduce per-bc dcache lru lists with real time shrink. Underlying dcache can be immediately shrunk if sysctl "ubc.dcache_no_vzfs_cache" is set (PSBM-16072)
* [vSwap] virtual vSwap feature has been introduced => now vSwap does not require free physical swap on the HN (PSBM-16764)
* [pagecache] enhanced enchanted version of memory scheduler: shadow gangs, reclaimer takes timestamps into the consideration, etc. (PSBM-15796)** vmscan priority is calculated for all LRU vectors according to its memory usage/limit and age of LRU lists.** sysctls:*** vm.usage_factor (default 2)*** vm.shadow_factor (default 8)*** vm.age_factor (default 8)*** priority = 12 + usage * usage_factor / limit + shadow * shadow_factor / limit (for shadow part only) + age * age_factor / max_age
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* [ubc/dcache] fix endless oom postponing in dcache reclaimer (PSBM-17067, PSBM-17069)