Re: packing directory storage

Toby Dickenson <[email protected]>
Newsgroups gmane.comp.web.zope.zodb.dirstorage
Message-ID <[email protected]>
On Friday 25 June 2004 08:53, Stefano Maffulli wrote:

A quick analysis of these numbers turns up no suprises....

Your average object size is 10449145862/4021818 = 2598 bytes.
Your objects have an average of 4021818/425829 = 9 revisions.
Transaction metadata takes up 40333205/10489479067 = 0.3% of the space.

The reference graph stats are most interesting for me.... this is my first 
confirmation that these stats are as I expected in a very large storage.


> this is the output (more or less, I was running it in screen that
> apparently does not let you scroll the term view).  I launched the
> checkds.py.
>
> 7098 maximum referencence graph depth
>      470.5 average referencence graph depth
>    4021818 revisions of objects
> 10489479067 total bytes
>   40333205 bytes in transaction files
>      48921 transactions
> 10449145862 bytes in object files
>     425829 objects
> done
>
>
> this is the time output:
>
> real    1063m11.333s
> user    82m18.910s
> sys     115m9.340s


-------------------------------------------------------
This SF.Net email sponsored by Black Hat Briefings & Training.
Attend Black Hat Briefings & Training, Las Vegas July 24-29 - 
digital self defense, top technical experts, no vendor pitches, 
unmatched networking opportunities. Visit www.blackhat.com
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.