PRS-T1 Rooting, Zeam and Memory Consumption

[NebuK]

Heyyas,

i've just rooted my T1 - its really nice what you can do with this nifty little device and the help of the wiki-page you've put together.

I've then enabled ADB and tried to test around a little. I've "disabled" a few applications (such as the ever-running bluetooth, calendar-data-source, contacts-data-source, iris 3d gallery,... packages... - simply by copying the apks and odexs to some backup dir) and checked memory consumption. I see around 96-102 mb of free memory when i just booted the device and went to the sony home-launcher (not zeam). When opening a simple picture-less epub book i see around 25-70mb consumed by the reader process. On the other hand, some strange processes i'm not sure i need (android.process.phone (is that the GSM-stuff listener?), as well as com.sony.drbd.ebook.testmode and the demoservice) are running and taking up ~12-20mb RSS and ~20-25mb VSIZE each. Phone seems to be "auto restarting" (something somewhere in the system shows crash-dialogs and auto-restarts it, if you move the apk/odex away it'll dialog-loop...), the others behave strangely, are probably restarted by the GUI - i haven't had the balls to remove/move away them yet .

Anyways, bottomline is: Reading feels a little more laggy now the device is r00ted. A) CAN that be at all?, and B) is it the same for you? The question about "what can be done, now we can tinker with the system all we like" now arises.

Any comments, tips or "... the fuck, u mad?! CANT BE!" welcome .

Regards
- NebuK

[S3raph]

Thanks for the information , I haven't received my T1 yet, but I'm looking forward to play around with it, as soon as there is a subforum on xda developers probably much more dev stuff is coming. It seems sony took an android tablet/phone system and removed useless files, however missed a lot stuff and did not optimize it.

[NebuK]

Huu, actually - after some more tinkering and toying around i'm not sure that its a bug after rooting anymore. I've started reading one epub before i r00ted the device, read on after it - it felt more sluggish. Well, turns out i have 4 epubs of a book series, three are okay, one has the problem that the further into the book i am the slower the pageturns get. Page 1->1-2 takes < 1s, 400->400-401 takes ~15s(!). Quite strange ... gotta try other epub parsers/readers on and off device to find out whats going on. It'd be cool if this was a error that could be fixed by re-structuring the epub or something...

Anyways, its not bad having ~15-20mb more ram free from killing those apps...

Regards
- NebuK

[deides]

I think the OP established that there was no loss of performance to the T1 once it was rooted, but I wanted to perhaps open a discussion about removing non essential services... I too removed the calendar/bluetooth and some others (camera, phone) from the system/app

I got the endless loop saying phone service failed to load, or closed unexpectedly but I got around it! I simply held the power button until it asked me if i wanted to shut down the reader... then I had to QUICKLY (read: try many many many times) click the close button on the endless loop then click on the yes to power down.

the system powers down. I rebooted and now the reader runs fine without the phone service hogging up ressources!

any other tips or apps one can remove?

[NebuK]

Hey,

to get around that loop maybe one could also adb into the device and simply reboot it by commandline? but thanks for the tip! Will try!

[NebuK]

Oi,

just tried it, really works! Thanks. I've moved the Phone.[apk,odex] away and rebooted via adb shell reboot, saves a bit hassle ;P. Now i've got 120mb of ram free after boot, 60 with a book with many images open - yay!

Regards
- NebuK