Messages in this thread | | | Date | Wed, 16 Apr 2008 14:41:29 +0300 | From | Avi Kivity <> | Subject | Re: Automatic page sharing/consolidation |
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Enrico Weigelt wrote: > Hi folks, > > I'm using dozens of VE's / jails to separate applications > (even complete webapps w/ their own httpd) for easier maintenance > and better security. But this tends to consume a lot of memory, > since code sharing (.so's) cannot take effect here (each jail/VE > has it's completely own tree). > > Now I wonder if it might be possible to let the kernel automatically > find out equal pages and map them together. > > A little compasion showed up that at least 50% of the code could be > shared (maybe more with some tuning, and maybe even data). So it's > (IMHO) really worth it. > > Would this be possible ? What had to be done for this ? >
Izik (copied) is working on this for kvm. Results so far are very encouraging, but currently merged pages are not swappable.
-- error compiling committee.c: too many arguments to function
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