btrfs on small (embedded) systems

btrfs on small (embedded) systems

[Tomasz Chmielewski]

FYI - I've been using btrfs with 2.6.31.1 kernel for a few days as a 
rootfs on a small mips system (ASUS WL-500gP - 32 MB RAM, 266 MHz CPU).

btrfs filesystem is placed on a USB-stick connected to the device 
(internal flash only contains the kernel).


My main motivation for using btrfs on this small system was compression 
this filesystem offers - flash storage is still prohibitively expensive 
when compared to traditional hard disks (i.e. 32 GB USB-stick costs as 
much as a 1 TB HDD).


So far, everything looks fine, although I didn't try to stress it much 
(or use snapshots and/or make the filesystem full).


Certainly one thing I'm missing in btrfs is the ability to use swapfiles 
- is it planned one day (or perhaps some serious surgery in MM would be 
needed first)?


-- 
Tomasz Chmielewski
http://wpkg.org

Re: btrfs on small (embedded) systems

[Zhu Yanhai]

Intel's Moblin (Moblie linux, www.moblin.org) has used btrfs as
default root filesystem, unless
the users choose other filesystems in the installer.


2009/9/28 Tomasz Chmielewski <mangoo@wpkg.org>:
> FYI - I've been using btrfs with 2.6.31.1 kernel for a few days as a =
rootfs
> on a small mips system (ASUS WL-500gP - 32 MB RAM, 266 MHz CPU).
>
> btrfs filesystem is placed on a USB-stick connected to the device (in=
ternal
> flash only contains the kernel).
>
>
> My main motivation for using btrfs on this small system was compressi=
on this
> filesystem offers - flash storage is still prohibitively expensive wh=
en
> compared to traditional hard disks (i.e. 32 GB USB-stick costs as muc=
h as a
> 1 TB HDD).
>
>
> So far, everything looks fine, although I didn't try to stress it muc=
h (or
> use snapshots and/or make the filesystem full).
>
>
> Certainly one thing I'm missing in btrfs is the ability to use swapfi=
les -
> is it planned one day (or perhaps some serious surgery in MM would be=
 needed
> first)?
>
>
> --
> Tomasz Chmielewski
> http://wpkg.org
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs=
" in
> the body of a message to majordomo@vger.kernel.org
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ml
>
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Re: btrfs on small (embedded) systems

[Zhu Yanhai]

And because Moblin is supposed to run on netbooks, MID and cellphones
(with Intel's future moorestown chipset), hopefully we will see btrfs
running in MID and cellphones in 2010.

2009/10/17 Zhu Yanhai <zhu.yanhai@gmail.com>:
> Intel's Moblin (Moblie linux, www.moblin.org) has used btrfs as
> default root filesystem, unless
> the users choose other filesystems in the installer.
>
>
> 2009/9/28 Tomasz Chmielewski <mangoo@wpkg.org>:
>> FYI - I've been using btrfs with 2.6.31.1 kernel for a few days as a=
 rootfs
>> on a small mips system (ASUS WL-500gP - 32 MB RAM, 266 MHz CPU).
>>
>> btrfs filesystem is placed on a USB-stick connected to the device (i=
nternal
>> flash only contains the kernel).
>>
>>
>> My main motivation for using btrfs on this small system was compress=
ion this
>> filesystem offers - flash storage is still prohibitively expensive w=
hen
>> compared to traditional hard disks (i.e. 32 GB USB-stick costs as mu=
ch as a
>> 1 TB HDD).
>>
>>
>> So far, everything looks fine, although I didn't try to stress it mu=
ch (or
>> use snapshots and/or make the filesystem full).
>>
>>
>> Certainly one thing I'm missing in btrfs is the ability to use swapf=
iles -
>> is it planned one day (or perhaps some serious surgery in MM would b=
e needed
>> first)?
>>
>>
>> --
>> Tomasz Chmielewski
>> http://wpkg.org
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-btrf=
s" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at =C2=A0http://vger.kernel.org/majordomo-info.h=
tml
>>
>
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