Nexus Oneのバッテリー事情

ノーマルROM、CM5.0.6ともにHT-03A Dwangよりもバッテリーの減りが早いです。
とりあえず、バッテリーに優しいと噂のintersectRaven's Kernelを導入して様子を見る予定です。

CPUのクロックスケーリングについて
http://forum.xda-developers.com/showpost.php?p=4250854&postcount=46

起動直後のN1(CM5.0.6 & intersectRaven's Kernel/925mV/CFS)では

# cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
20000

# cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate_min
10000

# cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate_max
4294967295

# cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
95

# cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/powersave_bias
0

# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
245000

# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
998400

# cat /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state
245000 25381
384000 1190
422400 246
460800 251
499200 198
576000 356
614400 187
652800 133
691200 72
768000 261
806400 71
883200 175
998400 6532

# cat /sys/devices/system/cpu/cpu0/cpufreq/stats/trans_table
   From  :    To
         :    245000    384000    422400    460800    499200    576000    614400    652800    691200    768000    806400    883200    998400
   245000:         0         0         0         0         0         0         0         0         0         0         0         0       587
   384000:       264         0         0         0         0         0         0         0         0         0         0         0       115
   422400:        35        38         0         0         0         0         0         0         0         0         0         0        27
   460800:        51        32         5         0         0         0         0         0         0         0         0         0        20
   499200:        25        23        10         9         0         0         0         0         0         0         0         0        20
   576000:        33        42         9         9        15         0         0         0         0         0         0         0        40
   614400:        13        16         3         5         1         7         0         0         0         0         0         0        16
   652800:        10        11         6         4         4        11         3         0         0         0         0         0        15
   691200:         7         7         4         5         2         4         3         3         0         0         0         0         6
   768000:        13        13         3         1         3        10         4         5         4         0         0         0        20
   806400:         1         4         1         1         2         1         4         0         1         6         0         0        12
   883200:         8        11         4         4         2         3         2         3         8         6         3         0        20
   998400:       128       182        55        70        58       112        45        53        28        63        30        74         0

ついでにmeminfoも書き留めておきます。こちらはCM5.0.6

# cat /proc/meminfo
MemTotal:         395280 kB
MemFree:           23856 kB
Buffers:            9768 kB
Cached:           143340 kB
SwapCached:            0 kB
Active:           161596 kB
Inactive:         168940 kB
Active(anon):      98300 kB
Inactive(anon):    85416 kB
Active(file):      63296 kB
Inactive(file):    83524 kB
Unevictable:         272 kB
Mlocked:               0 kB
HighTotal:        272384 kB
HighFree:           3660 kB
LowTotal:         122896 kB
LowFree:           20196 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:        177720 kB
Mapped:            68416 kB
Shmem:              6004 kB
Slab:              10384 kB
SReclaimable:       4400 kB
SUnreclaim:         5984 kB
KernelStack:        3256 kB
PageTables:        11508 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      197640 kB
Committed_AS:    5877304 kB
VmallocTotal:     778240 kB
VmallocUsed:      146440 kB
VmallocChunk:     597324 kB

こちらはintersectRaven's Kernel(2.6.33_AVS-800mV_CFS_20100506_1459.zip)

# cat /proc/meminfo
cat /proc/meminfo
MemTotal:         416608 kB
MemFree:           58928 kB
Buffers:             452 kB
Cached:            30724 kB
SwapCached:            0 kB
Active:           159512 kB
Inactive:         154536 kB
Active(anon):     151772 kB
Inactive(anon):   140184 kB
Active(file):       7740 kB
Inactive(file):    14352 kB
Unevictable:         272 kB
Mlocked:               0 kB
HighTotal:        293888 kB
HighFree:          21600 kB
LowTotal:         122720 kB
LowFree:           37328 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:        283164 kB
Mapped:            40180 kB
Shmem:              8800 kB
Slab:               6156 kB
SReclaimable:       1452 kB
SUnreclaim:         4704 kB
KernelStack:        4480 kB
PageTables:        14944 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      208304 kB
Committed_AS:    7552908 kB
VmallocTotal:     778240 kB
VmallocUsed:      157372 kB
VmallocChunk:     578988 kB