|
Bugzilla – Full Text Bug Listing |
| Summary: | frequency scaling is not using all throttling states | ||
|---|---|---|---|
| Product: | [openSUSE] SUSE Linux 10.1 | Reporter: | k. t. <cooling.crystals> |
| Component: | Kernel | Assignee: | E-mail List <kernel-maintainers> |
| Status: | RESOLVED INVALID | QA Contact: | E-mail List <qa-bugs> |
| Severity: | Normal | ||
| Priority: | P5 - None | ||
| Version: | Beta 3 | ||
| Target Milestone: | --- | ||
| Hardware: | i686 | ||
| OS: | Other | ||
| Whiteboard: | |||
| Found By: | Other | Services Priority: | |
| Business Priority: | Blocker: | --- | |
| Marketing QA Status: | --- | IT Deployment: | --- |
Throttling is only for when your CPU overheats. Hopefully never happens. When it happens it's not controlled by software, but by the CPU itself. |
kbeta@kohvi:~> cat /proc/acpi/processor/CPU0/throttling state count: 8 active state: T4 states: T0: 00% T1: 12% T2: 25% T3: 37% *T4: 50% T5: 62% T6: 75% T7: 87% kbeta@kohvi:~> cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Pentium(R) M processor 1.73GHz stepping : 8 cpu MHz : 800.000 cache size : 2048 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx est tm2 bogomips : 1603.11 Suse 10.1beta3 (suse 10.0 also) only uses 800MHz or 1.73GHz. I could be totally wrong about this but dmesg says: ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3]) ACPI: Processor [CPU0] (supports 8 throttling states)