Date: Sat, 13 May 2006 22:45:37 -0500 From: Andrew <andrew.chace@gmail.com> To: freebsd-questions@freebsd.org Subject: VM and jailed processes Message-ID: <1147578337.10075.12.camel@LatitudeFC5.network>
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Ok, I'm a bit fuzzy on some of the details, so take it easy. ;-) It's my understanding that if there is more than one instance of a specific application running, then portions of the code are shared in memory. I would assume that would apply to dynamically linked applications as well; i.e. if two different applications are linked against the same library, the given code exists in only one location in memory. Is this correct? The second portion of my question is, how does this apply to jailed processes? Looking through the architecture handbook, I did not see any references to VM, which leads me to believe that the standard rules apply to jails as well. So, for instance, if I was to provide a hosting service with numerous instances of Apache running in individual jails, could I assume that base memory usage (ie idle, not serving requests) would increase at a roughly linear rate? Lastly, if this is a question perhaps more appropriate for hackers@, please correct me. Thanks, -Andrew
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