linux kernel - How many docker containers can i run simultaneously on single host? -

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i new lxc , docker. docker max client count depend solely on cpu , ram or there other factors associated running multiple containers simultaneously?

as mentioned in comments question, largely depend on requirements of applications inside containers.

what follows anecdotal data collected answer (this on macbook pro 8 cores, 16gb , docker running in virtualbox boot2docker 2gb, using 2 mbp cores):

i able launch 242 (idle) redis containers before getting:

2014/06/30 08:07:58 error: cannot start container c4b49372111c45ae30bb4e7edb322dbffad8b47c5fa6eafad890e8df4b347ffa: pipe2: many open files

after that, top inside vm reports cpu use around 30%-55% user , 10%-12% system (every redis process seems use 0.2%). also, time outs while trying connect redis server.


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