Issues with Mutli-Core VM

[cakkineni]

Hi Guys,

We are running CoreOS on a Mac Host inside Virtual box and serving a ruby website from docker container. If we run with single core, we have performance issues but all the requests get served fine. If we increase to multiple cores, everything works fine inside the coreOS host, but when hitting the website from outside the coreOS VM (from the Mac), we are getting about 30% failed requests. If we change the settings back to 1 CPU, it all works fine (albeit a bit slower).

Is there something that we should be changing along with increasing the CPU cores to so that we don't see a degradation in traffic?

Thanks in advance
CA

[noteirak]

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