[SOLVED] TSC on Atom CPU and downscaling CPU frequency

[agent_kith]

Thanks for that

Still not in list

might be a mixup with the kernel names. I couldnt load the i86 but could the amd

That's normal. Snakeoil comes in 32 bit and 64 bit variants. Since you're running the 64 bit edition, the AMD file will work, but the i686 one will not. (It's a convention I guess, folks called it amd because this is company releases the first 64 bit chip, and the name stuck).

get
dmesg | grep -i tsc
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 2133.441 MHz processor
[    0.205515] TSC synchronization [CPU#0 -> CPU#1]:
[    0.205516] Measured 13912360 cycles TSC warp between CPUs, turning off TSC clock.
[    0.205522] tsc: Marking TSC unstable due to check_tsc_sync_source failed
[    0.336518] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1ec0970ffc0, max_idle_ns: 440795262269 ns

Will send the diagnostic over

Got that. So it seems the TSC just can't be sync'ed properly across the 2 CPUs. I'd play with the code abit and get back to you on another test. In the meantime, try this 300 Hz kernel and report back on the SQ. Let me know if it subjectively if it sounds better, worse or no difference.