____/ Peter Köhlmann on Wednesday 12 September 2007 06:58 : \____
> Tim Smith wrote:
>
>> In article <1290252.J6yoQHQMNs@xxxxxxxxxxxxxxx>,
>> Roy Schestowitz <newsgroups@xxxxxxxxxxxxxxx> non sequitured:
>>> FS fragmentation -- You think that's a good thing? So just because I
>>> save
>>> files, a hard drive is torn to piece? How annoying. Yes, i'm sure it
>>> CAN'T be turned off, but still... what a fucking stupid idea.
>>
>> Too bad Linux filesystems get fragmented, then. Try this, as root:
>>
>> for i in 1 2 4 8 16 32 64 128 256
>> do
>> dd if=/dev/zero of=$i.meg bs=1024k count=$i
>> done
>> filefrag *.meg
>>
>> (Root is needed for filefrag)
>>
>> That will create 9 files, ranging from 1 meg to 256 meg, and then tell
>> you how many fragments each consists of. Here's what I got on one of my
>> Ubuntu systems:
>>
>> 128.meg: 39 extents found, perfection would be 2 extents
>> 16.meg: 14 extents found, perfection would be 1 extent
>> 1.meg: 133 extents found, perfection would be 1 extent
>> 256.meg: 49 extents found, perfection would be 3 extents
>> 2.meg: 153 extents found, perfection would be 1 extent
>> 32.meg: 8 extents found, perfection would be 1 extent
>> 4.meg: 103 extents found, perfection would be 1 extent
>> 64.meg: 12 extents found, perfection would be 1 extent
>> 8.meg: 6 extents found, perfection would be 1 extent
>>
>> and here is another:
>>
>> 128.meg: 72 extents found, perfection would be 2 extents
>> 16.meg: 47 extents found, perfection would be 1 extent
>> 1.meg: 20 extents found, perfection would be 1 extent
>> 256.meg: 50 extents found, perfection would be 3 extents
>> 2.meg: 71 extents found, perfection would be 1 extent
>> 32.meg: 46 extents found, perfection would be 1 extent
>> 4.meg: 86 extents found, perfection would be 1 extent
>> 64.meg: 96 extents found, perfection would be 1 extent
>> 8.meg: 100 extents found, perfection would be 1 extent
>>
>
> There again goes Hadron Quarks claim of "easy to allocate a non-fragmented
> swap file". Which would be quite a bit larger than 256meg
What else would you expect from Tim "filesystem expert", "weekly stats
analyst", "Funkenbush protege" Smith?
--
~~ Best of wishes
Roy S. Schestowitz | Othello for free: http://othellomaster.com
http://Schestowitz.com | RHAT Linux | PGP-Key: 0x74572E8E
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