Re: ext5

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On Thu, Feb 11, 2010 at 3:20 AM,  <tytso@xxxxxxx> wrote:
> On Wed, Feb 10, 2010 at 12:40:05AM +0100, Anonymous Remailer (austria) wrote:
>>
>> will there be ext5? ext4 works just fine so far. but it could be
>> even more faster. otherwise i have to jump to btrfs (when it's
>> done).
>
> We currently don't have any plans for an "ext5".  There might be some
> new features that might gradually trickle into ext4; for example
> there's someone who I may be mentoring who is interested in working on
> an idea I've had to add read-only compression to ext4.  (Actually, the
> design I've sketched out makes 90% of the work be file system
> independent,
Hi Ted,

Is this design somewhere on net so that we can read/lookup it up ?

Thanks -
Manish
> so it's something that could be retrofitted into other
> filesystems: xfs, btrfs, etc.)
>
> The benchmarks I've seen don't show that btrfs is that much faster;
> for some workloads its faster, for others its slower.  Of course,
> there may be some file system tuning that still remains to be done,
> both for btrfs and ext4, that may change the performance numbers
> slightly.
>
> The main reason why I suspect people will be interested in btrfs is to
> because of some of its features (i.e., file system level snapshots,
> data level checksums, etc.) that are unlikely to show up in ext4.  I
> also suspect that btrfs will take a while to mature, as all file
> systems do.  ZFS for example took good five years to development, and
> perhaps another 3-4 before people started really trusting it for
> critical production uses.
>
> Regards,
>
>                                                - Ted
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-- 
Thanks -
Manish
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