On 10/28/2016 10:17 AM, Major Hayden wrote: >> Also, when running the tests on both systems, track cpu usage and number >> > of threads to see if one has more restrictions than the other. > Almost no difference here.
On the topic of threads, the sysbench output from both Trusty and Xenial are nearly identical with the exception of threads. Trusty is usually about 15-20% faster on that benchmark than Xenial. That leads me to rule out a few things: 1) It's probably not python that is slow since it affects sysbench, too 2) The kernel version doesn't seem to make a difference 3) The way python was compiled doesn't matter (I tried pyenv) 4) Kernel tunables (via sysctl) look very similar, especially with regard to threads I also ran the full suite of tests from nova and got these results: Trusty: 375 seconds Xenial: 531 seconds -- Major Hayden
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