Messages in this thread | | | Date | Sat, 8 Oct 2016 01:59:25 +0300 | From | Aaro Koskinen <> | Subject | v4.8 cpufreq regression? |
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Hi,
I'm upgrading from v4.7 to v4.8 on MIPS/loongson2_cpufreq with cpufreq/ondemand and I noticed that /proc/cpuinfo is always reporting (regardless of system load):
BogoMIPS : 697150.20
and sysfs:
/sys/devices/system/cpu/cpufreq/policy0/affected_cpus:0 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq:797800 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_max_freq:797800 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_min_freq:199450 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_transition_latency:0 /sys/devices/system/cpu/cpufreq/policy0/related_cpus:0 /sys/devices/system/cpu/cpufreq/policy0/scaling_available_frequencies:199450 299175 398900 498625 598350 698075 797800 /sys/devices/system/cpu/cpufreq/policy0/scaling_available_governors:ondemand performance /sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq:797800 /sys/devices/system/cpu/cpufreq/policy0/scaling_driver:loongson2 /sys/devices/system/cpu/cpufreq/policy0/scaling_governor:ondemand /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq:797800 /sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq:199450 /sys/devices/system/cpu/cpufreq/policy0/scaling_setspeed:<unsupported>
although previously they reported (when idle):
BogoMIPS : 132.09
/sys/devices/system/cpu/cpufreq/policy0/affected_cpus:0 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq:199445 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_max_freq:797780 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_min_freq:199445 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_transition_latency:0 /sys/devices/system/cpu/cpufreq/policy0/related_cpus:0 /sys/devices/system/cpu/cpufreq/policy0/scaling_available_frequencies:199445 299167 398890 498612 598335 698057 797780 /sys/devices/system/cpu/cpufreq/policy0/scaling_available_governors:ondemand performance /sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq:199445 /sys/devices/system/cpu/cpufreq/policy0/scaling_driver:loongson2 /sys/devices/system/cpu/cpufreq/policy0/scaling_governor:ondemand /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq:797780 /sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq:199445 /sys/devices/system/cpu/cpufreq/policy0/scaling_setspeed:<unsupported>
and under full load:
BogoMIPS : 528.38
/sys/devices/system/cpu/cpufreq/policy0/affected_cpus:0 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_cur_freq:797780 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_max_freq:797780 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_min_freq:199445 /sys/devices/system/cpu/cpufreq/policy0/cpuinfo_transition_latency:0 /sys/devices/system/cpu/cpufreq/policy0/related_cpus:0 /sys/devices/system/cpu/cpufreq/policy0/scaling_available_frequencies:199445 299167 398890 498612 598335 698057 797780 /sys/devices/system/cpu/cpufreq/policy0/scaling_available_governors:ondemand performance /sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq:797780 /sys/devices/system/cpu/cpufreq/policy0/scaling_driver:loongson2 /sys/devices/system/cpu/cpufreq/policy0/scaling_governor:ondemand /sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq:797780 /sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq:199445 /sys/devices/system/cpu/cpufreq/policy0/scaling_setspeed:<unsupported>
The offeding commit (bisected) seems to be:
commit da0c6dc00c69d0adaae99c3b3d2ea0c869a3fb35 Author: Viresh Kumar <viresh.kumar@linaro.org> Date: Mon Jun 27 16:04:07 2016 +0530
cpufreq: Handle sorted frequency tables more efficiently
Any ideas?
A.
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