On 26 January 2017 at 01:17, bugproxy <[email protected]> wrote: > ------- Comment From [email protected] 2017-01-25 20:08 EDT------- > (In reply to comment #49) >> KVM for IBM z uses the following sysctl defaults: >> >> fs.inotify.max_user_watches = 32768 >> fs.aio-max-nr = 4194304 >> >> Can you try with these values? > > Thank you for the suggestion! > > Having set the system with these values, I can deploy way more 52 > instances.. I tested up to 200+ instances.. As expected, the deployment > time is increasing linearly. I think it's related to the asynchronized > io increase in KVM hypervisor. >
Should these sysctl defaults be shipped in Ubuntu by default for s390x? On my amd64 xenial desktop my max_user_watches is a lot higher (~524k vs ~8k) than what I see on s390x zesty; fs.aio-max-nr is set to ~65k in both. Why is the default so low or (vice versa) why such a high number is required? -- Regards, Dimitri. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1644785 Title: Ubuntu Openstack Mitaka can only deploy up to 52 instances To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1644785/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
