On 07/23/2011 12:41 PM, Tejun Heo wrote: > Hello, > > On Sat, Jul 23, 2011 at 12:06:46PM +0400, Pavel Emelyanov wrote: >>> The dumper would have to build full process tree anyway so I don't >>> see much point in providing backlink from kernel. >> >> Hm... Why would a dumper need to build the whole tree? Maybe you're >> right with this, so can you elaborate? > > It depends on what you want to dump. Dumping arbitrary task has > issues even at the most basic level due to relationships among family > of processes, which I assume is why the in-kernel CR was primarily > focused on dumping and restoring full namespaces. If you're doing > that, there is no avoiding walking process tree anyway (which > apparently can even be per-NS using uprocfs). OK I see. Then my answer is - typically a container looks like an init task with everybody else growing from that point. Having a machine with 1000 of containers building the whole /proc tree in memory to dump a single container would be MUCH more expensive that having this small like in proc. > Thanks. > _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
