On Fri, Feb 3, 2012 at 7:29 PM, Jan Safranek <jsafr...@redhat.com> wrote:
> On 02/01/2012 02:02 PM, Martin wrote: > > Hello, > > > > hopfully this is the right place for such a question: > > > > I'm not sure when a modification of an existing cgroup takes effect. > > There's a cgroup which has running processes in it. During runtime its > > necessary to adapt a few cgroup parameters by using the > > cgroup_modify_cgroup() function. Now the point of interest is do changes > > affect running task directly. (i.e. by setting a reduced value for > > "memory.limit_in_bytes" are tasks forced to reduce mem. consume or are > > already allocated / running events not affected?) . Do such changes > affect > > only future consume (malloc)? > > This is more or less question to kernel guys... Libcgroup only writes > the parameter to kernel cgroup subsystem and honestly I don't know how > memory.limit_in_bytes are enforced. Check kernel documentation at > http://kernel.org/doc/Documentation/cgroups/memory.txt and ask a > kernelist if still not sure. > The effect should be immediate - as soon as the new value is written to the file. We have notifiers that tell us the file has changed and we act on it Balbir ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ Libcg-devel mailing list Libcg-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libcg-devel
