https://bugzilla.kernel.org/show_bug.cgi?id=49231 Thomas Renninger <trenn@xxxxxxx> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |RESOLVED Resolution| |INVALID --- Comment #7 from Thomas Renninger <trenn@xxxxxxx> 2012-10-24 11:44:03 --- > So I thought I'd try running with the NO_HZ setting and interestingly > the idle cores now stay in C7 Ok, tickless timer configuration is a must for this processor to enter deepest sleep states and thus enter boosting mode. How/when processors enter deep sleep states (even if requested by the kernel) is very HW specific. So that the CPUs behave differently (one enters deeper sleep states without NO_HZ, the other does not (probably not very efficiently)) may be interesting, but it looks like it works as designed. Hm, not sure whether to close this invalid or documented -> going for invalid as nothing seems to be wrong. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
