On 3/4/10, JT Croteau <jt.n1ese@xxxxxxxxx> wrote: > Hi folks. I have a client with a workstation using the Asus Z8NA > motherboard and two Xeon E5530s but it is unable to ever trigger > turboboost on any of the cores. Len's turbostat tool shows that turbo > should be available but it never triggers. I do not show any ACPI > errors in dmesg. I have tried booting the kernel both with and > without acpi_osi=Linux and I have also tried the old > "processor.nocst=1" trick as well. Could someone possibly help me > debug this problem on Linux? The BIOS is configured properly for > turbo and turbo triggers under Windows. I am able to run the same > kernel on a Core i7 rig and turbo engages under Linux so I am > beginning to suspect there might be something buggy with the BIOS on > this Asus board. Below is the output of turbostat when all cores are > loaded to 100%. When idle, the cores downclock just fine to 1.8 GHz > and all C-states are entered. > > Thanks > > - JT > > > CPUID GenuineIntel 11 levels family:model:stepping 6:26:5 > Nehalem multiplier 18, TSC frequency 2400 MHz > Nehalem 4 cores active: 19 mult, max turbo frequency = 2533 MHz > Nehalem 3 cores active: 19 mult, max turbo frequency = 2533 MHz > Nehalem 2 cores active: 20 mult, max turbo frequency = 2667 MHz > Nehalem 1 core active: 20 mult, max turbo frequency = 2667 MHz > CPU GHz TSC %c0 %c1 %c3 %c6 %pc3 %pc6 %pc7 > 0 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 1 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 2 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 3 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 4 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 5 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 6 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 7 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 8 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 9 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 10 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 11 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 12 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 13 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 14 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 > 15 2.40 2.40 100.00 0.00 0.00 0.00 0.00 0.00 0.00 CC: linux-acpi The acpi4asus project develops the asus-specific drivers (i.e. asus-laptop). asus-laptop doesn't include CPU control. The linux-acpi list is a more likely source of help. Regards Alan -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
