当core处于wfi/wfe时,amu计数器停止工作,这时计算出的性能等于其期望频率 参考cppc_cpufreq.c文件中的函数cppc_perf_from_fbctrs Reference linaro视频https://resources.linaro.org/en/resource/ddCcrnP8BEsCAasQrGiwrk linaro pdfhttps://static.linaro.org/connect/lvc21/presentations/lvc21-219.pdf kernel docht...
cpufreq: CPPC: Add u64 casts to avoid overflowing Browse files [ Upstream commit f5f94b9 ] The fields of the _CPC object are unsigned 32-bits values. To avoid overflows while using _CPC's values, add 'u64' casts. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Signed-...
* use them to convert perf to freq and vice versa. The conversion is * extrapolated as an affine function passing by the 2 points: * - (Low perf, Low freq) * - (Nominal perf, Nominal perf) */ static unsigned int cppc_cpufreq_perf_to_khz(struct cppc_cpudata *c...
+static bool cppc_highest_perf_diff=false; ^ WARNING:LONG_LINE: line over 80 characters #78: FILE: drivers/cpufreq/acpi-cpufreq.c:673: pr_debug("CPU%d: Unable to get performance capabilities (%d)\n", cpu, ret); ERROR:SPACING: spaces required around that '=' (ctx:VxV) #102: FIL...
国外知名第三方Linux内核团队,只为打造精简快速的Linux内核体验!核心和进程调度、负载平衡、缓存、虚拟内存管理器和 CPUFreq 调节器针对繁重的工作负载进行了优化。 完整的多核块层运行队列请求,以实现高 I/O 吞吐量。 用于内核堆栈跟踪(调试信息)实现的ORC开卷器。 实
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