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Page cache isolation

157 bytes added, 15:16, 23 July 2020
m
note about legacy OpenVZ version described
{{Warning|This article describes legacy version of OpenVZ (version 6).This feature is absent in OpenVZ 7, similar feature in OpenVZ 7 is called '''tcache'''.}} This page describes a new '''strict page cache isolation ''' feature, which appeared in the kernel 2.6.32-042stab068.8 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.

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