Public bug reported:
Binary package hint: linux-image-2.6.28-7-generic
CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz
Distro: Ubuntu 9.04 alpha4
Amarok plays without underruns with hyperthreading disabled in bios,
even when another process causes a very high CPU load (90%).
But with hyperthreading enabled (two CPUs in /proc/cpuinfo), in the same
situation causes underruns. The pulseaudio process then also has a 90%
CPU load.
Thus the scheduling seems to be worse with hyperthreading enabled, which
should not be the case.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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scheduling is bad with P4-hyperthreading
https://bugs.launchpad.net/bugs/330277
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