https://bugzilla.kernel.org/show_bug.cgi?id=77771 --- Comment #9 from Michael Long <harn-solo@xxxxxx> --- Created attachment 140441 --> https://bugzilla.kernel.org/attachment.cgi?id=140441&action=edit Kernel config 3.15 Sorry for the delay, yes the turbostat results are all from the same Haswell i5-4200U with 800-1600 MHz (turbo 2.9 GHz) [1]. I've no clue why this ultrabook is so sensitive. Hence I've attached my current kernel-config maybe I've misconfigured something. In the meantime I tried to find a better method to reproduce the effect but I had no real luck when testing on my other quad-core systems. There, the effect is very less severe. [1] http://ark.intel.com/products/75459/Intel-Core-i5-4200U-Processor-3M-Cache-up-to-2_60-GHz?q=i5-4200U -- 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