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jay8378 is offline jay8378
2007-08-24 , 03:25
Posts: 72 | Thanked: 2 times | Joined on Jul 2007
#41
Originally Posted by zeez View Post
Same here...

What is "OMAP McSPI/0" by the way ? It seems to consume lot's of CPU time.
I found the source for the header. It's prolly a driver for the omap 2430 processor
Here's a link to the source i found. I'm not really sure what it is though. Maybe someone with more knowledge could shed some light on it. I seen a "turbo_mode" function in the source. Something to do with the clock of the processor maybe. Just a shot in the dark :P
P.S. Looks like it also might be just a patch.

How did you find this? I don't recall seeing it in the osso-cpu task manager
 
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zeez is offline zeez
2007-08-24 , 19:26
Posts: 341 | Thanked: 68 times | Joined on Aug 2007
#42
I just had this little script running for a day and notices that "OMAP McSPI/0" takes a lot of cpu time...

Code:
import os
import sys
import time
import commands


while(True):
  time.sleep(20)
  res = commands.getoutput('top -b -n 1')
  lines = res.split('\n')
  for i in range(len(lines)):
    if ("COMMAND" in lines[i]):
     logfile = open('cpu.log', 'a')   
     logfile.write('\n')
     logfile.write('---------------------------------->\n')                  
     logfile.write('\n')
     logfile.write(lines[i+1] + '\n') 
     logfile.write(lines[i+2] + '\n') 
     logfile.close()
 
jay8378 is offline jay8378
2007-08-25 , 04:20
Posts: 72 | Thanked: 2 times | Joined on Jul 2007
#43
Originally Posted by zeez View Post
I just had this little script running for a day and notices that "OMAP McSPI/0" takes a lot of cpu time...

Code:
import os
import sys
import time
import commands


while(True):
  time.sleep(20)
  res = commands.getoutput('top -b -n 1')
  lines = res.split('\n')
  for i in range(len(lines)):
    if ("COMMAND" in lines[i]):
     logfile = open('cpu.log', 'a')   
     logfile.write('\n')
     logfile.write('---------------------------------->\n')                  
     logfile.write('\n')
     logfile.write(lines[i+1] + '\n') 
     logfile.write(lines[i+2] + '\n') 
     logfile.close()
Very nice
 
TA-t3 is offline TA-t3
2007-08-27 , 12:36
Posts: 3,841 | Thanked: 1,079 times | Joined on Nov 2006
#44
I've had two cases lately where my N800 was dead in the morning because the battery ran out. This is unfortunate because it reduces the battery capacity. Fortunately though it's not disastrous like when my PDAs run out of battery, as nothing is lost (the PDAs are basically scratched). I'm not sure of the cause though. But I noticed that the first time load-applet-run indicated CPU usage in the evening, unfortunately I hadn't yet learned that it was a CPU bar I was watching. Don't know what was running. What I've done since the second incident is:
a) I disabled the meta crawler. I can't see that I need it for anything, and I haven't seen any side effects of disabling it either.
b) Every evening I look at load-applet-run to verify that the CPU bar is all clear, if it's not completely white I check what's running, if I can't figure it out I'll reboot. Anyway I haven't had another incident yet after a). That doesn't mean the metacrawler is to blame though, it could be coincidence. However, I didn't have any such unexplained battery drainage overnight in the previous firmware versions. Could still be a coincidence though.

Unfortunately, after those two battery discharges the capacity has definitely got a dent, this has also been the case with every other lithium-powered device I own where the battery was fully discharged. Avoid discharging a lithium battery at all costs, I wouldn't even do the initial discharge-and-charge cycle so often recommended to new users.
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
 
Milhouse is offline Milhouse
2007-09-05 , 00:02
Posts: 3,401 | Thanked: 1,255 times | Joined on Nov 2005 @ London, UK
#45
Interesting news article on the Register: Better gadget battery-level readouts in pipeline.
 
TA-t3 is offline TA-t3
2007-09-05 , 09:42
Posts: 3,841 | Thanked: 1,079 times | Joined on Nov 2006
#46
The article made sense. I'm eagerly awaiting, er, the future!
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
 
ImDisaster is offline ImDisaster
2007-09-25 , 14:30
Posts: 73 | Thanked: 3 times | Joined on Sep 2007 @ USA
#47
Mine has been sucking down the batteries the last few days...I haven't upgraded the firmware but did fight to get Canola installed (ultimately gave up) and played with a couple other media players...including Rhapsody music service.

The only WIFI app that runs continuously is the weather app.

Being connected to the local network, using WEP, really seems to shorten the life.

I've had a couple of weird occurrences. When left on the charger, overnight, I've opened it to find the screen on (after locking it, after connecting to power.) When I turned it on it said it only had 2 hours of life. Turn off WIFI and it claims 7 hours.

Having an internet tablet that can't stay connected to the internet without severe battery drain kind of defeats the purpose.

An update:

Took it off the charger and it reported 2 hours battery life.

Disconnected from WIFI and it changed to 7 hours.

Reconnected to the WIFI network, but did not start the browser and it still reports 7 hours life.

Started MicroB browser and it bounced down to 4 hours but rebounded back to 6....then 7.

Not sure what process causes the intense CPU cycling...but it is OK for now.

I'll also have to check if logging on and off the WIFI network works to "fix" the problem.
 
TA-t3 is offline TA-t3
2007-09-25 , 15:19
Posts: 3,841 | Thanked: 1,079 times | Joined on Nov 2006
#48
I have discovered a problem with a particular wi-fi router only: When connected to this one my N800 sucks battery like there's no tomorrow. It _only_ happens with this router (which is one I own), it's never happened with any other access point anywhere. It took a while before I realised what's happening. Presumably the router somehow prevents my N800 from going into wi-fi sleep mode or something.

I don't have the exact details of this router (it's not located here), but it's a SiS chipset based one. I'll look for firmware upgrades for it and do some more testing if so.
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
 
pdathekid is offline pdathekid
2007-09-26 , 13:51
Posts: 10 | Thanked: 2 times | Joined on Sep 2007
#49
my battery life is dieing quick aswell

i didnt have any problems till i installed python and mediacenter with uktube (which crashes everytimei try to use it) i believe

could that be the cause of my battery drain?

im a complete newb so all that coding stuff is jibberish to me
Last edited by pdathekid; 2007-09-26 at 13:54.
 
TA-t3 is offline TA-t3
2007-09-26 , 14:06
Posts: 3,841 | Thanked: 1,079 times | Joined on Nov 2006
#50
Well, since I disabled the metacrawler (see earlier posting), I haven't had any battery issues (save the one with the particular router, posted about it yesterday), so at this stage I'm somewhat inclined to blame the crawler for those times when I was out of battery in the morning.
I'm also wary of installing Canola or any other software which also uses file system crawlers. I don't like file system crawlers and I don't even think they serve any useful purpose.
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
 
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