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− | * [ubc/mm] A new strict page cache isolation feature (PSBM-16955 | + | * [ubc/mm] A new strict page cache isolation feature (PSBM-16955) |
+ | ** This feature disables bouncing pagecache pages between host and containers on physpages shortage in container. Internal reclaimer will drop cached data if container exceeded its physpages limit and pagecache isolation turned on. | ||
+ | ** Current state: /proc/bc/<id>/debug:pagecache_isolation (disabled by default) | ||
+ | ** sysctls: | ||
+ | *** ubc.pagecache_isolation = 0|1 turn off|on isolation for all containers | ||
+ | *** ubc.pagecache_isolation_on = <id> turn on for container <id> (write only) | ||
+ | *** ubc.pagecache_isolation_off = <id> turn off for container <id> (write only) | ||
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* [mm] per-bc pagecache should be shrinked proportionally now (PSBM-15799) | * [mm] per-bc pagecache should be shrinked proportionally now (PSBM-15799) |