On 4/25/07, Suparna Bhattacharya [EMAIL PROTECTED] wrote:
On Wed, Apr 25, 2007 at 05:50:55AM +0530, Karuna sagar K wrote:
One more set of numbers to calculate would be an estimate of cross-references
across chunks of block groups -- 1 (=128MB), 2 (=256MB), 4 (=512MB), 8(=1GB)
as suggested by
On Mon, Apr 23, 2007 at 02:53:33PM -0600, Andreas Dilger wrote:
Also, is it considered a cross-chunk reference if a directory entry is
referencing an inode in another group? Should there be a continuation
inode in the local group, or is the directory entry itself enough?
(Sorry for the
On Mon, Apr 23, 2007 at 02:05:47AM +0530, Karuna sagar K wrote:
Hi,
The attached code contains program to estimate the cross-chunk
references for ChunkFS file system (idea from Valh). Below are the
results:
Nice work! Thank you very much for doing this!
-VAL
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On Mon, Apr 23, 2007 at 08:13:06PM -0400, Theodore Tso wrote:
There may also be special things we will need to do to handle
scenarios such as BackupPC, where if it looks like a directory
contains a huge number of hard links to a particular chunk, we'll need
to make sure that directory is
On Wed, Apr 25, 2007 at 05:50:55AM +0530, Karuna sagar K wrote:
On 4/24/07, Theodore Tso [EMAIL PROTECTED] wrote:
On Mon, Apr 23, 2007 at 02:53:33PM -0600, Andreas Dilger wrote:
.
It would also be good to distinguish between directories referencing
files in another chunk, and
On Mon, Apr 23, 2007 at 06:02:29PM -0700, Arjan van de Ven wrote:
The other thing which we should consider is that chunkfs really
requires a 64-bit inode number space, which means either we only allow
does it?
I'd think it needs a chunk space number and a 32 bit local inode
number ;)
On 4/24/07, Theodore Tso [EMAIL PROTECTED] wrote:
On Mon, Apr 23, 2007 at 02:53:33PM -0600, Andreas Dilger wrote:
.
It would also be good to distinguish between directories referencing
files in another chunk, and directories referencing subdirectories in
another chunk (which would be
Hi,
The tool estimates the cross-chunk references from an extt2/3 file
system. It considers a block group as one chunk and calcuates how many
block groups does a file span across. So, the block group size gives
the estimate of chunk size.
The file systems were aged for about 3-4 months on a
On Apr 23, 2007 15:04 +0530, Kalpak Shah wrote:
On Mon, 2007-04-23 at 12:49 +0530, Karuna sagar K wrote:
The tool estimates the cross-chunk references from an extt2/3 file
system. It considers a block group as one chunk and calcuates how many
block groups does a file span across. So, the
On Mon, Apr 23, 2007 at 02:53:33PM -0600, Andreas Dilger wrote:
With a blocksize of 4KB, a block group would be 128 MB. In the original
Chunkfs paper, Valh had mentioned 1GB chunks and I believe it will be
possible to use 2GB, 4GB or 8GB chunks in the future. As the chunk size
increases
The other thing which we should consider is that chunkfs really
requires a 64-bit inode number space, which means either we only allow
does it?
I'd think it needs a chunk space number and a 32 bit local inode
number ;) (same for blocks)
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On Mon, 23 Apr 2007, Arjan van de Ven wrote:
The other thing which we should consider is that chunkfs really
requires a 64-bit inode number space, which means either we only allow
does it?
I'd think it needs a chunk space number and a 32 bit local inode
number ;) (same for blocks)
For
On Mon, 23 Apr 2007, Amit Gud wrote:
On Mon, 23 Apr 2007, Arjan van de Ven wrote:
The other thing which we should consider is that chunkfs really
requires a 64-bit inode number space, which means either we only allow
does it?
I'd think it needs a chunk space number and a 32 bit local
Karuna sagar K wrote:
Hi,
The attached code contains program to estimate the cross-chunk
references for ChunkFS file system (idea from Valh). Below are the
results:
Nice to see some numbers! But would be really nice to know:
- what the chunk size is
- how the files were created or, more
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