ubuntu-x-swat team mailing list archive

[Richard Kleeman <kleeman@xxxxxxxxxxxx>]

The last two comments on this bug are contradictory. Checking powertop
with the 2.6.38 kernel for natty versus earlier kernels shows for me
that the *type* of kernel interrupt has changed but the number of them
has not and has increased if anything. I think this bug is serious and
getting worse and requires the attention of a kernel developer. It
reflects badly on linux in general if power consumption is increasing
markedly while performance is not markedly increasing at the same time
(which appears the case on the phoronix benchmarks).

To solve this requires  someone familiar with the kernel to report it on
the kernel bugzilla. There has been some discussion of the issue on lmkl
but it looks very inconclusive and low priority to me. I don't know why
exactly.

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https://bugs.launchpad.net/bugs/524281

Title:
  Tens of wakes per second in "[kernel scheduler] Load balancing tick"
  on Core 2 Duo even with only 1 core enabled