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    FYI: This has now been resolved on...

    FYI:

    This has now been resolved on StackOverflow, see http://stackoverflow.com/questions/20997809/analyzing-cause-of-performance-regression-with-different-kernel-version

    In short (and hoping...
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    Tested it on the AMD system: Changing the cpufreq...

    Tested it on the AMD system: Changing the cpufreq governor from "ondemand" to "performance" does not have any effect - same run time.
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    I was using the default ondemand scheduler. Will...

    I was using the default ondemand scheduler. Will try performance to see if it changes anything.

    The perf output showed almost identical numbers of context switches and effecive frequency (max...
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    Performance regression in kernel 3.12

    Hello,

    I noticed a performance regression for a raytracer between Fedora 20 kernel 3.11.10 and 3.12.6. On a Haswell system, for example, radiance is about 7% slower with the newer kernel. Note...
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    OS Support more problematic than performance

    I own a Lemote Yeelong Netbook, and I think that software support is a much bigger problem than the not-quite-competitive performance. The days where I compiled the kernel myself are long gone (and I...
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