OESF Portables Forum

Model Specific Forums => Sharp Zaurus => Zaurus - pdaXrom => Topic started by: BerndS on December 10, 2007, 12:49:40 pm

Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: BerndS on December 10, 2007, 12:49:40 pm: Hi,

while charging the battery of my SL3200 a process called "battchrgon" uses a lot CPU resources:

Mem: 61260K used, 1032K free, 0K shrd, 88K buff, 23352K cached
Load average: 27.00, 15.84, 8.21 (State: S=sleeping R=running, W=waiting)

PID USER STATUS RSS PPID %CPU %MEM COMMAND
5 root RW 0 1 48.3 0.0 battchrgon
6 root RW 0 1 18.1 0.0 battchrgoff
7 root RW 0 1 5.7 0.0 sharpsl_bat
3 root RWN 0 1 4.7 0.0 kapm-idled
431 root S 172 1 4.0 0.2 syslogd
4145 root R 344 4024 2.5 0.5 top
4249 root R 2588 1 2.2 4.1 python
4240 root R 2536 1 2.1 4.0 python
4292 root R 776 4119 2.1 1.2 apm
4259 root R 612 3608 2.0 0.9 fbpanel
4223 root R 2412 1 1.8 3.8 python
4289 root S 1284 4114 1.3 2.0 sh
4291 root S 648 4289 0.8 1.0 xset
4290 root S 648 4280 0.7 1.0 xset
4288 root S 648 4284 0.5 1.0 xset
585 root S 252 1 0.5 0.4 atd
4114 root S 2664 1 0.4 4.2 python
3570 root D < 1432 3569 0.4 2.2 X
3585 root S 200 3573 0.4 0.3 gconfd-2
4285 root S 648 4279 0.3 1.0 xset
4068 root D 508 1 0.3 0.8 python

What's this process doing and why does it uses about 50% of the CPU?

(I'm running weeXpc [pdaXrom 1.1.0beta3])

regards

Bernd
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: Capn_Fish on December 10, 2007, 02:26:18 pm: I don't know what the process is, but it's not a standard one. I suspect there's a bug in the code for it that's causing it to eat CPU cycles, but can't be sure.
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: LinuxGadget on December 10, 2007, 03:08:40 pm: Hi,

have you got mb-applet-powerctrl installed ?
Noticed the same processes on my C1k with pdaxii3, and i do believe after installing this applet. Unfortunately, can't proof this, because I'm installing Debian right now.

Quote from: BerndS
Hi,

while charging the battery of my SL3200 a process called "battchrgon" uses a lot CPU resources:

Mem: 61260K used, 1032K free, 0K shrd, 88K buff, 23352K cached
Load average: 27.00, 15.84, 8.21 (State: S=sleeping R=running, W=waiting)

PID USER STATUS RSS PPID %CPU %MEM COMMAND
5 root RW 0 1 48.3 0.0 battchrgon
6 root RW 0 1 18.1 0.0 battchrgoff
7 root RW 0 1 5.7 0.0 sharpsl_bat
3 root RWN 0 1 4.7 0.0 kapm-idled
431 root S 172 1 4.0 0.2 syslogd
4145 root R 344 4024 2.5 0.5 top
4249 root R 2588 1 2.2 4.1 python
4240 root R 2536 1 2.1 4.0 python
4292 root R 776 4119 2.1 1.2 apm
4259 root R 612 3608 2.0 0.9 fbpanel
4223 root R 2412 1 1.8 3.8 python
4289 root S 1284 4114 1.3 2.0 sh
4291 root S 648 4289 0.8 1.0 xset
4290 root S 648 4280 0.7 1.0 xset
4288 root S 648 4284 0.5 1.0 xset
585 root S 252 1 0.5 0.4 atd
4114 root S 2664 1 0.4 4.2 python
3570 root D < 1432 3569 0.4 2.2 X
3585 root S 200 3573 0.4 0.3 gconfd-2
4285 root S 648 4279 0.3 1.0 xset
4068 root D 508 1 0.3 0.8 python

What's this process doing and why does it uses about 50% of the CPU?

(I'm running weeXpc [pdaXrom 1.1.0beta3])

regards

Bernd
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: BerndS on December 10, 2007, 03:28:45 pm: Quote from: LinuxGadget
Hi,

have you got mb-applet-powerctrl installed ?

Yes, but that wasn't the owner of these processes:

I removed the mb-applet-powerctrl and rebooted the Zaurus and the processes are still there.

Strange -- does anybody else running pdaXrom has these processes also?

regards

Bernd
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: LinuxGadget on December 10, 2007, 05:13:50 pm: Hi,

for now I'm back to pdaxii3. u-boot made my heart stop while trying to install debian...

Will take a look, maybe I'm able to reproduce these processes. Just flashed pdaxii3, rebooting...

Quote from: BerndS
Quote from: LinuxGadget
Hi,

have you got mb-applet-powerctrl installed ?

Yes, but that wasn't the owner of these processes:

I removed the mb-applet-powerctrl and rebooted the Zaurus and the processes are still there.

Strange -- does anybody else running pdaXrom has these processes also?

regards

Bernd
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: LinuxGadget on December 10, 2007, 05:15:27 pm: Just flashed a pdaxii3 out of the box (thanks meanie! )
And I've got these processes, too. PID 5,6,7, just exactly like yours. So that makes me believe them beeing part of the kernel.

But I have no idea, why these proc. consume 50% CPU
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: speculatrix on December 11, 2007, 04:58:07 pm: they're there to see how quickly they can discharge your battery
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: ecc_hy on December 11, 2007, 10:28:24 pm: mb-applet-powerctrl check following with 2 seconds interval:
Call apm_read to get battery status
Read /proc/driver/battery/sharpsl_main_battery_voltage to get battery voltage when charging.

I have check my sl-c1000. There are battchrgon and battchrgoff running, but they do not eat so much CPU usuage, always be 0%, battchrgon get 15% once when charging.

Can you sure is it a problem of mb-applet-powerctrl?
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: BerndS on December 12, 2007, 03:32:59 pm: Hi,

Quote from: ecc_hy
Can you sure is it a problem of mb-applet-powerctrl?

I deinstalled mb-applet-powerctrl and rebooted the Zaurus but the problem still exists. So it's not a problem caused by the mb-applet-powerctrl.

regards

Bernd
Title: What Is Battchrgon And Why Does It Use About 50% Cpu?
Post by: LinuxGadget on December 12, 2007, 04:35:01 pm: Hm. maybe an hardware related problem? Lot's of irqs firing up while charging?

Quote from: BerndS
Hi,

Quote from: ecc_hy
Can you sure is it a problem of mb-applet-powerctrl?

I deinstalled mb-applet-powerctrl and rebooted the Zaurus but the problem still exists. So it's not a problem caused by the mb-applet-powerctrl.

regards

Bernd