Stuart Anderson wrote:
On Wed, Apr 16, 2008 at 02:07:53PM -0700, Richard Elling wrote:
Personally, I'd estimate using du rather than ls.
They report the exact same number as far as I can tell. With the caveat
that Solaris ls -s returns the number of 512-byte blocks, whereas
On Tue, Apr 15, 2008 at 03:51:17PM -0700, Richard Elling wrote:
UTSL. compressratio is the ratio of uncompressed bytes to compressed bytes.
http://cvs.opensolaris.org/source/search?q=ZFS_PROP_COMPRESSRATIOdefs=refs=path=zfshist=project=%2Fonnv
IMHO, you will (almost) never get the same
Stuart Anderson wrote:
On Tue, Apr 15, 2008 at 03:51:17PM -0700, Richard Elling wrote:
UTSL. compressratio is the ratio of uncompressed bytes to compressed bytes.
http://cvs.opensolaris.org/source/search?q=ZFS_PROP_COMPRESSRATIOdefs=refs=path=zfshist=project=%2Fonnv
IMHO, you will
On Wed, Apr 16, 2008 at 10:09:00AM -0700, Richard Elling wrote:
Stuart Anderson wrote:
On Tue, Apr 15, 2008 at 03:51:17PM -0700, Richard Elling wrote:
UTSL. compressratio is the ratio of uncompressed bytes to compressed
bytes.
Stuart Anderson wrote:
On Wed, Apr 16, 2008 at 10:09:00AM -0700, Richard Elling wrote:
Stuart Anderson wrote:
On Tue, Apr 15, 2008 at 03:51:17PM -0700, Richard Elling wrote:
UTSL. compressratio is the ratio of uncompressed bytes to compressed
bytes.
Stuart Anderson [EMAIL PROTECTED] wrote:
They report the exact same number as far as I can tell. With the caveat
that Solaris ls -s returns the number of 512-byte blocks, whereas
GNU ls -s returns the number of 1024byte blocks by default.
IIRC, this may be controlled by environment variables
On Wed, Apr 16, 2008 at 02:07:53PM -0700, Richard Elling wrote:
Personally, I'd estimate using du rather than ls.
They report the exact same number as far as I can tell. With the caveat
that Solaris ls -s returns the number of 512-byte blocks, whereas
GNU ls -s returns the number of
This may be my ignorance, but I thought all modern unix filesystems created
sparse files in this way?
-Original Message-
From: Stuart Anderson [EMAIL PROTECTED]
Date: Mon, 14 Apr 2008 15:45:03
To:Luke Scharf [EMAIL PROTECTED]
Cc:zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss
Message-
From: Stuart Anderson [EMAIL PROTECTED]
Date: Mon, 14 Apr 2008 15:45:03
To:Luke Scharf [EMAIL PROTECTED]
Cc:zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] Confused by compressratio
On Mon, Apr 14, 2008 at 05:22:03PM -0400, Luke Scharf wrote:
Stuart Anderson wrote
On Tue, 15 Apr 2008, Luke Scharf wrote:
AFAIK, ext3 supports sparse files just like it should -- but it doesn't
dynamically figure out what to write based on the contents of the file.
Since zfs inspects all data anyway in order to compute the block
checksum, it can easily know if a block is
zfs list /export/compress
NAME USED AVAIL REFER MOUNTPOINT
export-cit/compress 90.4M 1.17T 90.4M /export/compress
is 2GB/90.4M = 2048 / 90.4 = 22.65
That still leaves me puzzled what the precise definition of compressratio is?
My guess is that
On Tue, Apr 15, 2008 at 01:37:43PM -0400, Luke Scharf wrote:
zfs list /export/compress
NAME USED AVAIL REFER MOUNTPOINT
export-cit/compress 90.4M 1.17T 90.4M /export/compress
is 2GB/90.4M = 2048 / 90.4 = 22.65
That still leaves me puzzled what the
UTSL. compressratio is the ratio of uncompressed bytes to compressed bytes.
http://cvs.opensolaris.org/source/search?q=ZFS_PROP_COMPRESSRATIOdefs=refs=path=zfshist=project=%2Fonnv
IMHO, you will (almost) never get the same number looking at bytes as you
get from counting blocks.
-- richard
Stuart Anderson wrote:
As an artificial test, I created a filesystem with compression enabled
and ran mkfile 1g and the reported compressratio for that filesystem
is 1.00x even though this 1GB file only uses only 1kB.
ZFS seems to treat files filled with zeroes as sparse files, regardless
On Mon, Apr 14, 2008 at 09:59:48AM -0400, Luke Scharf wrote:
Stuart Anderson wrote:
As an artificial test, I created a filesystem with compression enabled
and ran mkfile 1g and the reported compressratio for that filesystem
is 1.00x even though this 1GB file only uses only 1kB.
ZFS
Stuart Anderson wrote:
On Mon, Apr 14, 2008 at 09:59:48AM -0400, Luke Scharf wrote:
Stuart Anderson wrote:
As an artificial test, I created a filesystem with compression enabled
and ran mkfile 1g and the reported compressratio for that filesystem
is 1.00x even though this 1GB file
On Mon, Apr 14, 2008 at 05:22:03PM -0400, Luke Scharf wrote:
Stuart Anderson wrote:
On Mon, Apr 14, 2008 at 09:59:48AM -0400, Luke Scharf wrote:
Stuart Anderson wrote:
As an artificial test, I created a filesystem with compression enabled
and ran mkfile 1g and the reported
I am confused by the numerical value of compressratio. I copied a
compressed ZFS filesystem that is 38.5G in size (zfs list USED and
REFER value) and reports a compressratio value of 2.52x to an
uncompressed ZFS filesystem and it expanded to 198G. So why is the
compressratio 2.52 rather than
18 matches
Mail list logo
