tree b378f8587fd10fd8fb2396892c65cfcfc7de3d42
parent 03c7c84f3c923921ab617a59c599835ecd0b9933
author Maxim Dounin <mdounin@mdounin.ru> 1592838180 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1592838180 +0300

Cache: introduced min_free cache clearing.

Clearing cache based on free space left on a file system is
expected to allow better disk utilization in some cases, notably
when disk space might be also used for something other than nginx
cache (including nginx own temporary files) and while loading
cache (when cache size might be inaccurate for a while, effectively
disabling max_size cache clearing).

Based on a patch by Adam Bambuch.