"Who is this 'Mediaserver' and why is he sucking my battery dry?"
Just solved a really annoying battery drain issue. Figured I'd post the results...
I noticed last week that my phone was going through the battery MUCH faster than normal. A check of Settings/About Phone/battery use told me that the "Mediaserver" was using over 35% of my battery, surpassing the phone standby -- which is saying a LOT given what my T-Mo reception is like.
Now, I'm still learning, so when the description says is does something with running apps, I assume that the issue is an app I recently installed, so I remove apps I recently installed or updated. Nope.
I saw another post about a laggy G2 that seemed to also have battery issues. It recommended using Watchdog Lite to see what was happening. So, off to the Android Market.
After installing Watchdog Lite, I saw that the CPU was 0% idle with 75-95% "nice." Well, no idle = battery suckage, so off to see what tasks are using CPU. The initial check didn't show anything -- until I enabled monitoring "Phone Processes." The alerts for the "mediaserver" "linux task" showed that this process was taking every cpu cycle it could. Off to Google.
Did a search on "android mediaserver loop" and found a couple of bugzillas that essentially said that a corrupt media file (pic, movie or sound) could send mediaserverover the edge. So, I started to move *every* picture off the sd card onto my computer's HD.
Knew I was on to something when mediaserver stopped going crazy once usb storage was turned on. So, I moved all the image and movie files off and turned off usb storage. The CPU spun back to100% busy, but slowed back down to about 9o% or more idle.
Now all I have to do is find the bad file or files, and I can add it to the bugzilla.
EDIT: It seems that this has also made the cooliris gallery wake up and start updating again. So anyone seeing that the gallery isn't updating may need to see if their mediaserver linux task is unusually busy. If so, offload as many media files as possible and see whap happens...
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