978485 - [tarako] Investigate power consumption issues

Status: RESOLVED WORKSFORME

(Firefox OS Graveyard :: Performance, defect, P2)

Description

[[:fabrice] Fabrice Desré]

STR:
- charge fully a tarko
- turn off wifi and the screen
- unplug for the night

Expected:
- power level should be > 80%

Observed:
- power level is < 30%

My phone had a single sim card in slot 2.

Comment 1

[Dietrich Ayala (:dietrich)]

Dupe or related to bug 963391.

Also made me think of bug 971590.

Comment 2

[[:fabrice] Fabrice Desré]

(In reply to Dietrich Ayala (:dietrich) from comment #1)
> Dupe or related to bug 963391.
> 
> Also made me think of bug 971590.

Arg, how did I not find thoses when filing...

Something I noticed is that /system/bin/slog uses a lot CPU while writing logs to /mnt/sdcard/slog/*

Comment 3

[James Zhang (Spreadtrum)]

(In reply to Fabrice Desré [:fabrice] from comment #2)
> (In reply to Dietrich Ayala (:dietrich) from comment #1)
> > Dupe or related to bug 963391.
> > 
> > Also made me think of bug 971590.
> 
> Arg, how did I not find thoses when filing...
> 
> Something I noticed is that /system/bin/slog uses a lot CPU while writing
> logs to /mnt/sdcard/slog/*

Slog is disable in user build, enable in user-debug and eng build.

Comment 4

[James Zhang (Spreadtrum)]

Sam, please take it.
QA has power consume test yesterday. The power consume data is the same as android when airplane mode.
Please check RIL log with android.

Comment 5

[James Zhang (Spreadtrum)]

If power consumption is ok in flight mode, please duplicate with bug 981948.

Comment 7

[sam.hua]

Hi all,
Now the standby consumption of ffos Taraka is :
One SIM, no edge,2.88
Two SIMs,no edge,5.43

it is better than the Android verion of Tarako.

Comment 8

[Mike Lee [:mlee]]

Sam,

How are you measuring power consumption? Are you using the Power Harness and Powertool Jon Hylands and Dave Huseby presented and gave to the Taipei team while we were there last week? If not please do or let us know why you can't or won't.

Power Harness and Tool details are here on MDN: http://mzl.la/1erl33E

Comment 9

[sam.hua]

Hi Mike,
No,our test team use other tools to measuring the standby power consumption.

Now all products of of SPRD use same tools to test power consumption.

Comment 10

[sam.hua]

it is fixed now

Comment 11

[Mike Lee [:mlee]]

Resolving as WFM per comment 10.