Re: find the blocksize of a FS
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On 01/14/08 06:55, Martin Marcher wrote:
> Ron Johnson wrote:
>> On 01/13/08 06:37, Martin Marcher wrote:
>>> On Saturday 12 January 2008 23:38 Jan C. Nordholz wrote:
>>> hmm looks like a starting point, I'm trying to get to that info with
>>> python, if all else fails I think the python ctypes module should be able
>>> to get that info thru the C interface.
>> Well heck, that's easy.
>>
>> http://docs.python.org/lib/module-statvfs.html
>> http://docs.python.org/lib/os-file-dir.html#l2h-2700
>>
>> $ python
>> Python 2.4.4 (#2, Jan 3 2008, 13:36:28)
>> [GCC 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)] on linux2
>> Type "help", "copyright", "credits" or "license" for more information.
>> >>> import statvfs
>> >>> import os
>> >>> os.statvfs('/')[statvfs.F_BSIZE]
>> 4096
>> >>> os.statvfs('/')[statvfs.F_FRSIZE]
>> 4096
>
> I _really_ hate python for that. I was in the same situation with
> shmutil.rmtree which I found after I finished writing my own function for
> that.
>
> I think I'm gonna get an ebook that reads the python lib to me every
> night :)
Google is your friend.
http://www.google.com/search?q=python+filesystem+blocksize
The 2nd and 3rd entries tell you what you need to know.
- --
Ron Johnson, Jr.
Jefferson LA USA
"I'm not a vegetarian because I love animals, I'm a vegetarian
because I hate vegetables!"
unknown
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Re: find the blocksize of a FS
Ron Johnson wrote:
> On 01/13/08 06:37, Martin Marcher wrote:
>> On Saturday 12 January 2008 23:38 Jan C. Nordholz wrote:
>> hmm looks like a starting point, I'm trying to get to that info with
>> python, if all else fails I think the python ctypes module should be able
>> to get that info thru the C interface.
>
> Well heck, that's easy.
>
> http://docs.python.org/lib/module-statvfs.html
> http://docs.python.org/lib/os-file-dir.html#l2h-2700
>
> $ python
> Python 2.4.4 (#2, Jan 3 2008, 13:36:28)
> [GCC 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import statvfs
> >>> import os
> >>> os.statvfs('/')[statvfs.F_BSIZE]
> 4096
> >>> os.statvfs('/')[statvfs.F_FRSIZE]
> 4096
I _really_ hate python for that. I was in the same situation with
shmutil.rmtree which I found after I finished writing my own function for
that.
I think I'm gonna get an ebook that reads the python lib to me every
night :)
martin
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Re: find the blocksize of a FS
On 01/13/08 06:37, Martin Marcher wrote:
On Saturday 12 January 2008 23:38 Jan C. Nordholz wrote:
Hi,
is there a way to get the blocksize of an FS thru /proc or something
else that doesn't rely on the utils (dumpe2fs, xfs_info) to be
installed?
Not that I can see. You can query the disk geometry, but proc is too
low level to know about what filesystems are on the devices.
/proc/filesystems only gives what filesystems the kernel supports.
you could code up a C snippet:
] echo -e '#define PATH_TO_MOUNTED_FS "..."
] #include
] #include
] int main() { struct statvfs V; statvfs(PATH_TO_MOUNTED_FS, &V);
]printf("%u\\n", V.f_bsize); return 0; }' |
] gcc -x c - -o /tmp/fsbsq && /tmp/fsbsq
hmm looks like a starting point, I'm trying to get to that info with python,
if all else fails I think the python ctypes module should be able to get
that info thru the C interface.
Well heck, that's easy.
http://docs.python.org/lib/module-statvfs.html
http://docs.python.org/lib/os-file-dir.html#l2h-2700
$ python
Python 2.4.4 (#2, Jan 3 2008, 13:36:28)
[GCC 4.2.3 20071123 (prerelease) (Debian 4.2.2-4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import statvfs
>>> import os
>>> os.statvfs('/')[statvfs.F_BSIZE]
4096
>>> os.statvfs('/')[statvfs.F_FRSIZE]
4096
--
Ron Johnson, Jr.
Jefferson LA USA
"I'm not a vegetarian because I love animals, I'm a vegetarian
because I hate vegetables!"
unknown
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Re: find the blocksize of a FS
On Saturday 12 January 2008 23:38 Jan C. Nordholz wrote:
> Hi,
>
>> > is there a way to get the blocksize of an FS thru /proc or something
>> > else that doesn't rely on the utils (dumpe2fs, xfs_info) to be
>> > installed?
>>
>> Not that I can see. You can query the disk geometry, but proc is too
>> low level to know about what filesystems are on the devices.
>> /proc/filesystems only gives what filesystems the kernel supports.
>
> you could code up a C snippet:
>
> ] echo -e '#define PATH_TO_MOUNTED_FS "..."
> ] #include
> ] #include
> ] int main() { struct statvfs V; statvfs(PATH_TO_MOUNTED_FS, &V);
> ]printf("%u\\n", V.f_bsize); return 0; }' |
> ] gcc -x c - -o /tmp/fsbsq && /tmp/fsbsq
hmm looks like a starting point, I'm trying to get to that info with python,
if all else fails I think the python ctypes module should be able to get
that info thru the C interface.
thanks
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Re: find the blocksize of a FS
Hi,
> > is there a way to get the blocksize of an FS thru /proc or something else
> > that doesn't rely on the utils (dumpe2fs, xfs_info) to be installed?
>
> Not that I can see. You can query the disk geometry, but proc is too
> low level to know about what filesystems are on the devices.
> /proc/filesystems only gives what filesystems the kernel supports.
you could code up a C snippet:
] echo -e '#define PATH_TO_MOUNTED_FS "..."
] #include
] #include
] int main() { struct statvfs V; statvfs(PATH_TO_MOUNTED_FS, &V);
]printf("%u\\n", V.f_bsize); return 0; }' |
] gcc -x c - -o /tmp/fsbsq && /tmp/fsbsq
Regards,
Jan
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Re: find the blocksize of a FS
On 1/12/08, Martin Marcher <[EMAIL PROTECTED]> wrote: > is there a way to get the blocksize of an FS thru /proc or something else > that doesn't rely on the utils (dumpe2fs, xfs_info) to be installed? Not that I can see. You can query the disk geometry, but proc is too low level to know about what filesystems are on the devices. /proc/filesystems only gives what filesystems the kernel supports. > martin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
find the blocksize of a FS
Hi, is there a way to get the blocksize of an FS thru /proc or something else that doesn't rely on the utils (dumpe2fs, xfs_info) to be installed? thanks martin -- http://noneisyours.marcher.name http://feeds.feedburner.com/NoneIsYours You are not free to read this message, by doing so, you have violated my licence and are required to urinate publicly. Thank you. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
