2.3.4 I9000JV and I9100 browser lag problems fixed finally

the lag problems, together with animations, etc, have been fixed for deodexed JVO/JVP/JVQ/JVR browser, credits to brightidea for correcting the problems, and lirik0 for letting us know in I9000 section


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JVQ Browser lag quick fix

i'm too frustrated with samsung's stock browser since JP6, and the deodexed one from JVQ is totally rubbish. it's sooooo lag that i've to wait for 2 seconds after each scroll


so, after studying some great posts in xda, i've modded a deodexed JVQ browser with all the lag things disappeared. now it just perform like what it used to be, u can scroll from the top to the bottom of the page with 1 single scroll. HOWEVER, i cannot say it's 100% bugs-free



so, USE IT AT YOUR OWN RISKS!! and remember to do BACKUP!




installation (for deodexed rom):
simply remove the existing Browser.apk from /system/app, and put this one there

PS you may notice some strange thing when u start this modded browser for the 1st time like a blank page is shown or cant scroll the page. just reload the page or restart the browser will do


NOTICE to all users:
- this is a one-off mod and it is not supposed to have any further modifications/adjustments

NOTICE to modders/developers:
- if u want to keep this alive or help to maintain this mod, etc, feel free to ask for the trick in xda


you can get it here

some reviews about my works

just found some articles/reviews talking about my sms mod and loop device mod. i am really appreciated

here they are:

hitting over 2700 in benchmarks with new fix (by soraxd@samsunggalaxysforums.com)

SMS – Show Sent Time For Galaxy S i9000 (by www.xda-developers.com)

XDA Brings You Custom Apps: See The Time Text Was Sent, and Stream TV (by www.talkandroid.com)

香港版卡三爽？ (in chinese)

boot up Samsung Galaxy S I9000 in 19 seconds

Galaxy S I9000 2.2.1 JPY with my mods and lag fix
- boots up in 19 secs
- no overclock, stock cpu frequency
- lightening fast to open and scroll 1000 sms messages
- 353 mb available memory



watch original movie clip in youtube

scored 2234 with stock I9000ZSJF7 on my Samsung Galaxy S I9000

after playing with Andriod for a month, I found a way to speed up the Android system by creating loop devices, no data2sd required
no more lags, smooth scrolling/zooming in and out in default browser with a web page contains more than 170 images, much faster cache for browser, market and other apps retrieval and listing

here's how:
- create an empty file with dd (i chose -b 4096 -m 1)
- mount it to loopx and format it with ext2 (busybox)
- create mount points and create links, eg
mount -o rw,noatime,nodiratime /dev/loop0 /dbdata/dbdataimage
then mv files and folders to /dbdata/dbdatimage
so, instead of reading /dbdata/databases/com.1.2.3, it will be linked to /dbdata/dbdataimage/databases/com.1.2.3
- finally write a script to mount them on boot by replacing playlogos1

simply speaking, is to run on an ext2 file block in rfs, and that's all for the trick!!


WARNING:
- i did it for /cache, /dbdata and /data only
- empty files, folders, and sym links will be deleted by the system under /cache
- dont reboot the phone when u've temporarily moved /dbdata/databases to a slow partition like /data


personally, i moved /data/data and /data/dalvik-cache to /dbdata and moved browser and market cache files to /cache

it's not for the benchmark only, instead, it has very good effects on ur phone's io

for the loop device:
busybox mknod /dev/loop0 b 7 0
busybox losetup /dev/loop0 /dbdata/dbdata.img
busybox mkfs.ext2 /dev/loop0
then mount it

and, here's my mount output:

rootfs / rootfs ro 0 0
tmpfs /dev tmpfs rw,mode=755 0 0
devpts /dev/pts devpts rw,mode=600 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
/dev/block/stl6 /mnt/.lfs j4fs rw 0 0
tmpfs /sqlite_stmt_journals tmpfs rw,size=4096k 0 0
none /dev/cpuctl cgroup rw,cpu 0 0
/dev/block/stl9 /system rfs rw,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/mmcblk0p2 /data rfs rw,nosuid,nodev,noatime,nodiratime,vfat,llw,check= no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/stl10 /dbdata rfs rw,nosuid,nodev,noatime,nodiratime,vfat,llw,check= no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/stl11 /cache rfs rw,nosuid,nodev,noatime,nodiratime,vfat,llw,check= no,gid/uid/rwx,iocharset=utf8 0 0
/dev/block/stl3 /efs rfs rw,nosuid,nodev,vfat,llw,check=no,gid/uid/rwx,iocharset=utf8 0 0
/dev/loop0 /dbdata/dbdata1 ext2 rw,noatime,nodiratime,errors=continue 0 0
/dev/loop2 /cache/cache1 ext2 rw,noatime,nodiratime,errors=continue 0 0
/dev/loop2 /cache/market ext2 rw,noatime,nodiratime,errors=continue 0 0
/dev/loop2 /cache/browser ext2 rw,noatime,nodiratime,errors=continue 0 0
/dev/block//vold/179:1 /sdcard vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1015,f mask=0102,dmask=0002,allow_utime=0020,codepage=cp4 37,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block//vold/179:9 /sdcard/sd vfat rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1015,f mask=0000,dmask=0000,allow_utime=0022,codepage=cp4 37,iocharset=iso8859-
1,shortname=mixed,utf8,errors=remount-ro 0 0


- no need to deal with /data
- the major thing is /dbdata/databases
- it wont have impact when u connect it to ur pc/kies since kies only deal with /sdcard and /sdcard/sd only, which both r out of my concern
- to see the improvement, simply do a dd and u'll see the difference



what suprised me is that, i found in one of the taiwan's forum, ppl called it "Hong Kong's Lag Fix" (香港版卡三爽)

more info (chinese)

more info