pthread_cond_timedwait() broken in 9-stable? [possible answer]
julian at freebsd.org
Fri Feb 17 01:54:28 UTC 2012
kern.timecounter.choice: TSC-low(1000) i8254(0) HPET(950)
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?
More information about the freebsd-stable