Page cache isolation

Here one can find interesting information about OpenVZ management and maintenance. OpenVZ control panels information also goes here

Page cache isolation

Postby lik » Tue Jan 22, 2013 2:43 am

New strict page cache isolation feature, appeared in the kernel 042stab068.8 and later kernels.
The feature disables bouncing page cache pages between host and containers on physpages shortage in container. The internal reclaimer will drop cached data if container exceeded its physpages limit and pagecache isolation is turned on.
Current state can be obtained by reading the /proc/bc/<id>/debug:pagecache_isolation file. It is disabled by default.
Posts: 497
Joined: Wed Dec 15, 2010 3:21 am

Return to OpenVZ related


  • Related topics
    Last post