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Article #16972

Re: REDUCING SIZE OF EA FILE

#16972
From: Roderick W. Smith
Date: Wed, 04 Sep 1996 00:00
35 lines
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In message <322D04BF.75C5@ibm.net> - Steve Behman <sbehman@ibm.net> writes:
> 
> Roderick W. Smith wrote:
> > 
> > In message <6t+Kyk5K8PcM089yn@ozemail.com.au> - robdel@ozemail.com.au (Robert De
> > Lazzari)Tue, 03 Sep 1996 18:25:30 +1000 writes:
> > >
> > > My EA file is in the order of 22 Megs. I am using a FAT formatted
> > > HD and OS2 Warp.
> > 
> > Without knowing the size of the partition or how many files have EAs,
> > it's hard to say if this is excessive, but my hunch is it's normal.
> 
> I have 4 Fat partitions on my system all about 150Mb in size -- the
> largest ea data. sf is 1.6 Mb and the sum for the 4 partitions is less
> than 3Mb.  I would, therefore, suggest that yours is EXCESSIVE!

This comparison is too simple.  For instance, your four FAT partitions are
rather small, and use 4kB allocation block sizes.  With larger allocation block
sizes, EAs will be stored in larger chunks -- perhaps as high as a multiple of
32kB per file rather than the 4kB you've got.  This difference alone could
account for the difference.  There's also the question of how many files have
EAs attached.

(And yes, on FAT, EAs *ARE* allocated in multiples of the allocation block size,
even though they're stored in a single file.  A few simple experiments with
creating and deleting files with EAs should convince you of this, if you're in
doubt.) 

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| Rod Smith                             Author of:               |
| rodsmith@indiana.edu                  "Should I Buy OS/2" FAQ  |
| http://psych.colorado.edu/~rsmith     "OS/2 Soundcard Summary" |
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From: rodsmith@indiana.edu (Roderick W. Smith)
Subject: Re: REDUCING SIZE OF EA FILE
Date: 1996/09/04
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