> > > > That being said, because CPU load doesn't show high we are making the > > *assumption* that it is not impacting MAAS, but again, this is an > > assumption. Making the requested change for having at least 4 CPUs > (ideally > > 6) would allow us to determining what are the effects and see whether > > there's any difference on behavior and would help identify what other > > issues. > > > > Without having the comparison then we are making it more difficult to > > isolate the problem. > > To improve performance the typical pattern is 1) identify the > bottleneck 2) eliminate that as the bottleneck 3) repeat. > > We have not identified CPU as a bottleneck. The top data says it is > not! >
Jason, That doesn't change the fact that we are requesting tests to be run with different CPU configuration for VM's, so we can make a *comparison* and see if there is any material difference or none at all with the current conditions. While I agree with you that the data /seems/ to show that there is not issue with CPU, that doesn't change the fact that we don't have any data to compare with, as there could still be an impact even if it is minimum. Without the data, we cannot certainly assert that there's no issue caused by CPU usage because we don't have a reference or point of comparison. So while all fingers seem to be pointing to storage, It strongly believe it is worth gathering the data now and fully discard. If this is something that your environment is unable to do, I would appreciate that you clarify that instead of asserting that there's no performance impact in MAAS due to CPU usage, when we don't really know for sure (e.g. we don't know if MAAS behaves differently with less CPU usage in the current conditions, and that's data worth gathering to be able to better support you in the future). -- Andres Rodriguez (RoAkSoAx) Ubuntu Server Developer MSc. Telecom & Networking Systems Engineer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743249 Title: Failed Deployment after timeout trying to retrieve grub cfg To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/1743249/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
