Database Develop

How to check if Compcache is enabled?

I am running Cyanogen 4.0.4 and would like to know if compcache is enabled. Can someone confirm if my settings are alright?
I have the following details:
Code:
# free
total used free shared buffers
Mem: 97880 95340 2540 0 504
Swap: 24464 17408 7056
Total: 122344 112748 9596
Code:
# df
/dev: 48940K total, 0K used, 48940K available (block size 4096)
/sqlite_stmt_journals: 4096K total, 0K used, 4096K available (block size 4096)
/system: 92160K total, 73844K used, 18316K available (block size 4096)
/system/modules: 640K total, 640K used, 0K available (block size 131072)
/system/xbin: 3328K total, 3328K used, 0K available (block size 131072)
/data: 91904K total, 17680K used, 74224K available (block size 4096)
/cache: 30720K total, 1552K used, 29168K available (block size 4096)
/system/sd: 409986K total, 58588K used, 351398K available (block size 1024)
/data/dalvik-cache: 409986K total, 58588K used, 351398K available (block size 1024)
/sdcard: 15121920K total, 147688K used, 14974232K available (block size 8192)
Code:
# mount
rootfs on / type rootfs (ro)
tmpfs on /dev type tmpfs (rw,mode=755)
devpts on /dev/pts type devpts (rw,mode=600)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /sqlite_stmt_journals type tmpfs (rw,size=4096k)
none on /dev/cpuctl type cgroup (rw,cpu)
/dev/block/mtdblock3 on /system type yaffs2 (ro)
/dev/block/loop0 on /system/modules type squashfs (ro)
/dev/block/loop1 on /system/xbin type squashfs (ro)
/dev/block/mtdblock5 on /data type yaffs2 (rw,nodev)
/dev/block/mtdblock4 on /cache type yaffs2 (rw,nosuid,nodev)
/dev/block/mmcblk0p2 on /system/sd type ext3 (rw,noatime,nodiratime,errors=continue,data=ordered)
/dev/block/mmcblk0p2 on /data/dalvik-cache type ext3 (rw,noatime,nodiratime,errors=continue,data=ordered)
/dev/block//vold/179:1 on /sdcard type vfat (rw,dirsync,nosuid,nodev,noexec,uid=1000,gid=1000,fmask=0711,dmask=0700,allow_utime=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro)

if the only thing you have is compache and no linux-swap then compache is working because of the output from the free command

else you should be able to run the following with superuser access through terminal:
sh /system/bin/swap -s
It will show you the pre and post compression data size, as well as the compression rate under compcache.

Or simply use
Code:
# cat /proc/ramzswap
This file only exists when compcache is currently active. You will see its current settings and status:
Code:
DiskSize: 87040 kB
NumReads: 9509
NumWrites: 12188
FailedReads: 0
FailedWrites: 0
InvalidIO: 0
NotifyFree: 1300
ZeroPages: 410
GoodCompress: 78 %
NoCompress: 3 %
PagesStored: 10471
PagesUsed: 3598
OrigDataSize: 41884 kB
ComprDataSize: 13755 kB
MemUsedTotal: 14392 kB

write error: No space left on device /system

Hello all,
I am trying to copy something to /system/lib and I am facing this error:
cp: write error: No space left on device
Code:
# mount
/dev/block/stl9 /system rfs rw,relatime,vfat,llw,gid/uid/rwx,iocharset=utf8 0 0
and
Code:
# df
/system: 282432K total, 282432K used, 0K available (block size 4096)
I have JPA with YA-OK and lagfix a=ext4
Searched and found this: http://forum.xda-developers.com/showthread.php?t=797730 but does not help.
Any ideas ?
Thanks

Low Space / Memory even after a hard reset

Hi
I recently acquired a Nexus One that I'm having memory issues with. I'm running Gingerbread 2.3.4 (GRJ22). I've tried all sorts of options in erasing / clearing memory. After each of these attempts, it always only shows 13MB free. No extra applications are even installed!
I've done the following:
* Factory Data Reset
* Clear Storage during HBOOT
* Wipe data/factory reset during RECOVERY
* Wipe cache partition during RECOVERY
Any other ideas? I've recently rooted it too.

What does it read if you do
Code:
df -h | grep /data
in the terminal? (The line is called a pipe and on the computer is located on the backslash key '\' and comes up when you use shift. I don't know where it is on the stock keyboard, but on swype, it is under the 'D' key if you use shift and long press on 'D'.

There is a possibility that your internal memory is filled with bad sectors.
As noted above, please post the output of the "df -h" command, so it'll be more clear.

I have 19.45kb free with CM7 + gapps only (edit - that is for /system and that too only 40KB free).
when I give that df command in terminal I get
/dev/block/mtdblock5 196.3M 41.1M 155.2M 21% /data
what does that mean?

munchy_cool said:
I have 19.45kb free with CM7 + gapps only
when I give that df command in terminal I get
/dev/block/mtdblock5 196.3M 41.1M 155.2M 21% /data
what does that mean?
Click to expand...
Click to collapse
Just do
df -h
and you'll see the headings...

filesystem size used available use% mounted
/dev/block/mtdblock5 196.3M 41.1M 155.2M 21% /data
so that means I have 155.2M free on /data.
that's good but my /system is only 40.0k free (cm 7 +gapps) only ..bad sectors?

bassmadrigal said:
What does it read if you do
Code:
df -h | grep /data
in the terminal? (The line is called a pipe and on the computer is located on the backslash key '\' and comes up when you use shift. I don't know where it is on the stock keyboard, but on swype, it is under the 'D' key if you use shift and long press on 'D'.
Click to expand...
Click to collapse
I can't seem to install terminal thru the marketplace. I think the low memory is preventing any additional application installs. Is that possible?
Is there another method to access a shell prompt on the device?

im sure you can use adb so plug it in!

daftsynth said:
I can't seem to install terminal thru the marketplace. I think the low memory is preventing any additional application installs. Is that possible?
Is there another method to access a shell prompt on the device?
Click to expand...
Click to collapse
Doesn't CM7 already come with Terminal installed...check your app drawer.

What gapps are you using? Because CM7 on mine has 8.56MB free after having gapps installed and DarkTremor's a2sd. If you are using one of the gapps that adds gmail, maps, facebook, etc... then that is probably your problem. That is why we have the smaller gapps (and to have gapps that are independent of the screen resolution). All those separate apps can be downloaded from the market. The tiny gapps gives you all the apps and framework needed to get onto the market so you can download the other apps.
And yes, Terminal is normally included with CM7...
You should definitely have more free on /system on a CM7 install with gapps.

bassmadrigal said:
You should definitely have more free on /system on a CM7 install with gapps.
Click to expand...
Click to collapse
How much is CM 7 + gapps from CM team on the /system (coz I use gapps which has gmail etc).

I don't know as I also have DarkTremor's a2sd installed, but I still have over 8.5MB available... so I would guess just over 10MB free.

I had low space problems on my old Eris. I just rooted & installed GingerShedBread (CM7) & have over 100MB free after installing 45 apps to internal storage.
GSB also supports moving all apps to sd including system.
Sent from my Vortex using XDA App

bassmadrigal said:
What does it read if you do
Code:
df -h | grep /data
in the terminal? (The line is called a pipe and on the computer is located on the backslash key '\' and comes up when you use shift. I don't know where it is on the stock keyboard, but on swype, it is under the 'D' key if you use shift and long press on 'D'.
Click to expand...
Click to collapse
running df, I get this:
Filesystem Size Used Free Blksize
/dev 192M 32K 192M 4096
/mnt/asec 192M 0K 192M 4096
/mnt/obb 192M 0K 192M 4096
/system 145M 128M 16M 4096
/data 196M 183M 12M 4096
/cache 95M 2M 92M 4096
/mnt/sdcard 1G 536K 1G 4096
/mnt/secure/asec 1G 536K 1G 4096
I can't seem to run "df -h". I get this error:
-h: No such file or directory

tsaxda said:
I had low space problems on my old Eris. I just rooted & installed GingerShedBread (CM7) & have over 100MB free after installing 45 apps to internal storage.
GSB also supports moving all apps to sd including system.
Sent from my Vortex using XDA App
Click to expand...
Click to collapse
I've just done some partition tweaks and now have 200+ apps with 118 mb free... xD

daftsynth said:
running df, I get this:
Filesystem Size Used Free Blksize
/dev 192M 32K 192M 4096
/mnt/asec 192M 0K 192M 4096
/mnt/obb 192M 0K 192M 4096
/system 145M 128M 16M 4096
/data 196M 183M 12M 4096
/cache 95M 2M 92M 4096
/mnt/sdcard 1G 536K 1G 4096
/mnt/secure/asec 1G 536K 1G 4096
I can't seem to run "df -h". I get this error:
-h: No such file or directory
Click to expand...
Click to collapse
That is weird that the -h option isn't working. It works on mine. Anyway, I guess it is the default with the df command (designed to show things in MB or GB instead of just bytes).
Now we will figure out what is using all the space in your /data directory.
Code:
su
cd /data
du -hd 1
This will show a listing of your data directory with sizes next to each folder. Normally the data and app directories will be your largest (maybe app-private if you have a lot of private apps installed). You can cd into each of the directories and run the same command and if you add "| grep M" it will only show items that have a capital 'M' in it which will show you all the files that are rated in MB vs KB.
So the command would read
Code:
du -hd 1 | grep M
Hopefully you can then figure out what is taking up all your space.

bassmadrigal said:
That is weird that the -h option isn't working. It works on mine. Anyway, I guess it is the default with the df command (designed to show things in MB or GB instead of just bytes).
Now we will figure out what is using all the space in your /data directory.
Code:
su
cd /data
du -hd 1
This will show a listing of your data directory with sizes next to each folder. Normally the data and app directories will be your largest (maybe app-private if you have a lot of private apps installed). You can cd into each of the directories and run the same command and if you add "| grep M" it will only show items that have a capital 'M' in it which will show you all the files that are rated in MB vs KB.
So the command would read
Code:
du -hd 1 | grep M
Hopefully you can then figure out what is taking up all your space.
Click to expand...
Click to collapse
It appears that I have bad sectors. The actual total size of /data is less than what shows up in "df". Any ideas on how I would repair the bad blocks?
I was able to run Ubuntu and get my Nexus One recognized by it. How do I fix the nexus one /data partition from Ubuntu? I'm assuming I would need to mount it.
I'm able to mount the /sd partition but can't see the other partitions. GParted only sees the SD partition as well when its attached with USB Storage turned on.

I don't have my Ubuntu box to confirm, but you should be able to mount /data as rw through adb (you only need the Linux adb, not the whole sdk).
Should look something like:
$ adb-linux shell
$ su
# mount /dev/block/mtdblock5 /data yaffs2 rw
...I'm sure someone will correct me if I'm wrong.

danger-rat said:
I don't have my Ubuntu box to confirm, but you should be able to mount /data as rw through adb (you only need the Linux adb, not the whole sdk).
Should look something like:
$ adb-linux shell
$ su
# mount /dev/block/mtdblock5 /data yaffs2 rw
...I'm sure someone will correct me if I'm wrong.
Click to expand...
Click to collapse
I will try this when I get home. But when you execute the mount cmd above, wouldnt that just mount the partition locally on the nexus one?

daftsynth said:
I will try this when I get home. But when you execute the mount cmd above, wouldnt that just mount the partition locally on the nexus one?
Click to expand...
Click to collapse
Yes it would mount it locally. I don't know if you would be able to mount the data partition onto the computer due to it not passing any disc info other than the sdcard. But, while in adb, you could try and run an e2fsck. I am not sure on the exactness of these commands, but I think it would be something like this in adb while in recovery.
Code:
adb-linux shell
mount system
e2fsck -pcfv /dev/block/mtdblock5
You may need to issue an 'su' command, but I think when you use adb it automatically logs in as root.

/datadata (/dev/block/mtdblock6) has 100 mb used (64 free) even after formatting

Hi
I'm using CM9 on SGS i9000 and after so many messages of low space, I found that /dev/block/mtdblock6 was almost full with 100 mb used even after deleting every single folder but lost+found:
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 189444 32 189412 0% /dev
/dev/block/mtdblock2 256000 240312 15688 94% /system
/dev/block/mtdblock3 17920 2336 15584 13% /cache
/dev/block/mmcblk0p2 1935192 276228 1658964 14% /data
/dev/block/mtdblock6 176128 111872 64256 64% /datadata
/dev/block/mmcblk0p1 5913120 3036544 2876576 51% /sdcard
~ # cd /datadata
/datadata # ls
lost+found
/datadata # rm -R lost\+found/
rm: can't remove 'lost+found': Directory not empty
I've tried formatting from CWM but that folder is still there and it complains of being non empty but (a ls on it shows nothing)
¿How could I recover that phantom used space so my apps doesn't complain?
Thanks in advance

Found it!
Flashing a new image (stock one), then reflashing CM fixed it, it appears that the problem was just with the FS and not with the flash memory.
It's a pitty than CWM format option did not fixed it :/
But at least it works

Hi,
Glad you fix your issue, can I barrow your thread? The issue is not exactly the same (at least I think) but the title fit so well with the problem and it is in the good category/section.
I have 60mb of unused/unusable/missing space in /datadata.
If I compare the result of command DU vs DF I got a difference of 59M for what is supposed to be the space “used”.
Command: du -sch /datadata
Result: 104.1M /datadata
Command: df /datadata
Result:
Filesystem Size Used Free Blksize
/datadata 172M 163M 8M 4096
The application DiskUsage give me a mysterious “System Data” of 62Mb.
Lost+Found folder is empty but I cannot delete it. Thought I don’t think it’s the issue... Lost+Found folder was showing up with DiskUsage when I got corruption on my emmc. So the situation is different.
I manage to put e2fsck in bin, but my adb don’t connect in download mode… and when the system is up it is impossible to umount “/dev/block/mtdblock6 /datadata yaffs2 rw,relatime 0 0” and neither it is to scan it with e2fsck.
I would like to find a rapid fix for that in case it would re-occur in the future. If we don’t find one I will probably Reset Data/Factory and wipe everything before flashing the rom again and restore with Titanium…
Searching for this issue always lead to either LOST.DIR LOST+FOUND or format, but everybody seems to have that issue on sdcard which is easier to move data,format then move data back…
Is there somebody else have this issue on /datadata? Do you think it may be fix by e2fsck? If yes then how can I run it? Do you have any idea on how to fix that?
Thanks you,
Model : GT-i9000M
Rom : CM9 nighties
Kernel : CM9 stock or Semaphore
Others :
- Restoring with Titanium backup if necessary (did not since a while)
- Using Wendigogo Datafix http://forum.xda-developers.com/showthread.php?p=26375859
EDIT: Welcome to this forum. At least now your first 2 post have an reply

That goes way over my skill.
Can somebody adapt this to our i9000?
http://forum.xda-developers.com/showthread.php?p=17752957
The e2fsck I have is coming from that zip. I can try to adapt in the script all /dev reference to our phone. But even with that, I think there a part that need to be compiled no? I don't know anything about these binary that are used for CW....
Edit : let me guess, YAFFS file system cannot be fix by e2fsck?! Anyway, if that could not help for my specific issue maybe it can be useful for other situations...
Envoyé depuis mon GT-I9000 avec Tapatalk

Silentbob999 said:
That goes way over my skill.
Can somebody adapt this to our i9000?
http://forum.xda-developers.com/showthread.php?p=17752957
The e2fsck I have is coming from that zip. I can try to adapt in the script all /dev reference to our phone. But even with that, I think there a part that need to be compiled no? I don't know anything about these binary that are used for CW....
Edit : let me guess, YAFFS file system cannot be fix by e2fsck?! Anyway, if that could not help for my specific issue maybe it can be useful for other situations...
Envoyé depuis mon GT-I9000 avec Tapatalk
Click to expand...
Click to collapse
I was not able to find on Linux any repairing tool, that's why I finally used a full image restore and repartition to have the FS recreated and usable again... CWM, CM9 and TitaniumBackup did the rest...

is that ok for you if I try to get support by using your thread or you prefer that I create a new one for my problem ?
For recap: I try to understand why /datadata is always full while CM9 is suppose to clean cache in there automatically. I think this is coming from that mysterious "System Data" that now taking 64.1Mo on my /datadata partition. That seems to correspond with the difference between result given by DU and DF command.
Code:
DF (153220) - DU (91836) = 61384 (59.9Mo)
Code:
***************************
* DU result *
***************************
Result of Data usage
Total : 172.5M (176656)
Data/data : 80.5M (82420)
Datadata : 89.7M (91836)
Libs Total : 41.2M (42144)
Libs in /Data/data : 38.2M (39080)
Libs in /Datadata : 0 (0)
Cache Total : 69.6M (71247)
Cache in /Data/data : 35.9M (36784)
Cache in /Datadata : 33.7M (34467)
Databases Total : 30.9M (31657)
Databases in /Data/data : 5.4M (5544)
Databases in /Datadata : 25.5M (26137)
Free space in /datadata : 83164
***************************
* DF result *
***************************
Filesystem Size Used Free Blksize
/datadata 172M 149M 22M 4096
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/block/mtdblock6 176128 153220 22908 87% /datadata
Filesystem Size Used Available Use% Mounted on
/dev/block/mtdblock6 172.0M 149.6M 22.4M 87% /datadata
Filesystem 1M-blocks Used Available Use% Mounted on
/dev/block/mtdblock6 172 150 22 87% /datadata
***************************
*** TYPES ***
***************************
1206 - app_appcache
3969 - app_databases
23432 - files
31681 - databases
39080 - lib
71251 - cache
***************************
*** Cache ***
*** TOP 20 ***
***************************
44 /datadata/com.smartandroidapps.audiowidget/cache
61 /datadata/com.google.android.youtube/cache
72 /data/data/ca.lapresse.android.lapressemobile/cache
72 /data/data/com.aurorasoftworks.quadrant.ui.standard/cache
96 /datadata/com.mikersmicros.fm_li/cache
112 /data/data/com.mobilityflow.torrent/cache
152 /data/data/com.pelmorex.WeatherEyeAndroid/cache
1617 /datadata/com.eolwral.osmonitor/cache
3106 /datadata/com.estrongs.android.pop/cache
4692 /data/data/com.artelplus.howtotie/cache
4692 /data/data/com.et.easy.download/cache
4704 /data/data/com.koushikdutta.rommanager/cache
4724 /data/data/os.tools.scriptmanager/cache
5139 /datadata/com.android.vending/cache
5713 /datadata/ccc71.bmw/cache
5713 /datadata/com.aor.droidedit/cache
5724 /data/data/com.unit.convert/cache
5760 /data/data/ds.cpuoverlay/cache
5972 /data/data/com.android.email/cache
12532 /datadata/com.quoord.tapatalkpro.activity/cache
***************************
*** Database ***
*** TOP 10 ***
***************************
615 /datadata/com.android.providers.telephony/databases
634 /datadata/com.google.android.apps.plus/databases
823 /datadata/com.google.android.apps.docs/databases
1168 /datadata/com.android.providers.contacts/databases
1379 /datadata/dk.tacit.android.foldersync.full/databases
1532 /datadata/com.dropbox.android/databases
3354 /datadata/com.kiragames.unblockmefree/databases
4315 /datadata/com.android.email/databases
5520 /data/data/ca.lapresse.android.lapressemobile/databases
6404 /datadata/com.android.providers.media/databases
***************************
***************************

Silentbob999 said:
is that ok for you if I try to get support by using your thread or you prefer that I create a new one for my problem ?
For recap: I try to understand why /datadata is always full while CM9 is suppose to clean cache in there automatically. I think this is coming from that mysterious "System Data" that now taking 64.1Mo on my /datadata partition. That seems to correspond with the difference between result given by DU and DF command.
Code:
DF (153220) - DU (91836) = 61384 (59.9Mo)
[/CODE]
Click to expand...
Click to collapse
From my understanding /datadata should not be always full, and even if cache is supposed to be cleaned automatically, system will complain if under some MB theresold.
If DU + DF != Total then you may have the same problem I had (reported at dmesg as corruption or failing NAND) which was marking blocks as bad /unusable thus consuming the available disk space.

lost+found
thatś the problem
lost+found directory
i try to see inside with ls -l command
there was plenty hidden files
it was for me quite difficult to dellete all
at last i managed to clean nearly everything
now i have just lost+found directory with aparently no files
but imposible to delete directory
my whole sd card is 3 gb and was fully occupied by this lost+found
if possible the best solution should be to format this sd card....but i don t know how...
thanks

No space for apps / sd-ext free space

I installed the hypersense nova rom on August. It's telling me no enough space.
However, there's plenty of space in /sd-ext:
Code:
sh-3.2# df /system /sd-ext /data /sdcard
/system: 225280K total, 209508K used, 15772K available (block size 4096)
/sd-ext: 1032056K total, 308808K used, 723248K available (block size 4096)
/data: 211200K total, 188952K used, 22248K available (block size 4096)
/sdcard: 2820736K total, 1362320K used, 1458416K available (block size 16384)
There's no a2sd command, since they say it's already embedded. I have tried to move apps from Settings>Applications>Manage Applications> SD Card... Move to SD Card. But it seems they are moved to /sdcard, not /sd-ext (e.g. Jorte)
Code:
sh-3.2# df /system /sd-ext /data /sdcard
/system: 225280K total, 209508K used, 15772K available (block size 4096)
/sd-ext: 1032056K total, 308804K used, 723252K available (block size 4096)
/data: 211200K total, 188952K used, 22248K available (block size 4096)
/sdcard: 2820736K total, 1367552K used, 1453184K available (block size 16384)
Code:
sh-3.2# mount
...
/dev/block/dm-0 /mnt/asec/jp.co.johospace.jorte-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,short
name=mixed,utf8,errors=remount-ro 0 0
Is it possible to move apps from /data to /sd-ext manually? Does it makes sense?

bitozoid said:
I installed the hypersense nova rom on August. It's telling me no enough space.
However, there's plenty of space in /sd-ext:
Code:
sh-3.2# df /system /sd-ext /data /sdcard
/system: 225280K total, 209508K used, 15772K available (block size 4096)
/sd-ext: 1032056K total, 308808K used, 723248K available (block size 4096)
/data: 211200K total, 188952K used, 22248K available (block size 4096)
/sdcard: 2820736K total, 1362320K used, 1458416K available (block size 16384)
There's no a2sd command, since they say it's already embedded. I have tried to move apps from Settings>Applications>Manage Applications> SD Card... Move to SD Card. But it seems they are moved to /sdcard, not /sd-ext (e.g. Jorte)
Code:
sh-3.2# df /system /sd-ext /data /sdcard
/system: 225280K total, 209508K used, 15772K available (block size 4096)
/sd-ext: 1032056K total, 308804K used, 723252K available (block size 4096)
/data: 211200K total, 188952K used, 22248K available (block size 4096)
/sdcard: 2820736K total, 1367552K used, 1453184K available (block size 16384)
Code:
sh-3.2# mount
...
/dev/block/dm-0 /mnt/asec/jp.co.johospace.jorte-1 vfat ro,dirsync,nosuid,nodev,relatime,uid=1000,fmask=0222,dmask=0222,codepage=cp437,iocharset=iso8859-1,short
name=mixed,utf8,errors=remount-ro 0 0
Is it possible to move apps from /data to /sd-ext manually? Does it makes sense?
Click to expand...
Click to collapse
Easy, just install an a2sd script
Sent from my Nexus One using Tapatalk 2

humzaahmed155 said:
Easy, just install an a2sd script
Click to expand...
Click to collapse
Thanks. I found I was not the only one with this issue. Some people have upgraded the a2sd script, despite they say it is not necessary:
http://forum.xda-developers.com/showthread.php?p=31802698&highlight=a2sd#post31802698
Anyway, I have just upgraded to last version (november 16th). I hope that fixes the issue. Anyway, I've found that data storage for some apps gets bigger as time goes on (e.g. google reader). Deleting the user data from some apps at Settings>Applications>Manage Applications may free a lot of space.