Re: How to enable zramfs in android...

[Corey Sheldon <sheldon.corey@xxxxxxxxx>]

works on linux desktop may also work on android:

cat /proc/swaps: (should readout)

/dev/block/zram0                 52M (as kb readout most likely)

if it shows a different slice path (/dev/zram0 for example) use swapon /that/mapping/path
  

also try swapon -p 100 -v -a /dev/block/zram0  as this adds the following flags to  activate ALL visible swaps and add a verbose function to create readout that may help in debuging issue

Corey W Sheldon
Owner, 1st Class Mobile Shine

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On Fri, May 23, 2014 at 5:21 AM, sandeep kumar <coolsandyforyou@xxxxxxxxx> wrote:

>>In my system /dev/zram0 is not present but sys/block/zram0 is present. thats why i m having this doubt

just now i found that we have zram0 in /dev/block/zram0

i tried the command you told,

root@kleoslte:/ # swapon -p 100 /dev/block/zram0

swapon -p 100 /dev/block/zram0

swapon failed for /dev/block/zram0

is there anything else that i can try?

On Fri, May 23, 2014 at 2:18 PM, sandeep kumar <coolsandyforyou@xxxxxxxxx> wrote:

Dear Anders

>Yes, zram is activated, otherwise you wouldn't have had zram0 created.

>Though you might not be using it...
>If you want to use it for swap, you'll have to run `swapon -p 100 /dev/zram0`.
>Well, '-p 100' isn't necessary, it's just to set the swap priority.

In my system /dev/zram0 is not present but sys/block/zram0 is present. thats why i m having this doubt

thanks

sandeep

On Thu, May 22, 2014 at 4:56 PM, Anders Darander <anders.darander@xxxxxxxxx> wrote:

On 22 May 2014 12:58, sandeep kumar <coolsandyforyou@xxxxxxxxx> wrote:
> Dear All,
>
> we are trying to make use of zramfs. In our android based board,
> we are seeing this output,
>
> root@sandeep:/sys/block/zram0 # ls

>

> Does this mean zram is activated ?

Yes, zram is activated, otherwise you wouldn't have had zram0 created.

Though you might not be using it...
If you want to use it for swap, you'll have to run `swapon -p 100 /dev/zram0`.
Well, '-p 100' isn't necessary, it's just to set the swap priority.

> we are trying to do the operation to set disk size,
> echo $((50*1024*1024)) > /sys/block/zram0/disksize

This should have set the size of zram0.

Cheers,
Anders

--
Anders Darander
EPO guidelines 1978: "If the contribution to the known art resides
solely in a computer program then the subject matter is not
patentable in whatever manner it may be presented in the claims."

--
With regards,
Sandeep Kumar Anantapalli,

--
With regards,
Sandeep Kumar Anantapalli,

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