On 2012/2/17 9:55, Julian Elischer wrote:
kern.timecounter.tick: 1
kern.timecounter.choice: TSC-low(1000) i8254(0) HPET(950)
ACPI-fast(900) dummy(-1000000)
kern.timecounter.hardware: ACPI-fast
kern.timecounter.stepwarnings: 0
switching the machine from TSC_low to ACPI-fast fixes the problem.
in 8.x it used to default to ACPI
but I used to switch it to "TSC" to get better performance.
I wonder why TSC-low is now bad to use..
maybe the TSCs are not as well sychronised as they were in 8.x?
maybe the pthreads code didn't get the memo about changing timers?
pthread code does not know timer setting, same as other code in kernel. ;-)
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