"fsdump/FileStorage" patch adding size information for transactions/object records (was: Re: [ZODB-Dev] RE: [Zope] Analyzing ZODB objects)

[Dieter Maurer]

Christian Robottom Reis wrote at 2003-10-28 23:44 -0200:
 > On Tue, Oct 28, 2003 at 07:44:05PM +0100, Dieter Maurer wrote:
 > >  > > I extended the "fsdump" utility to include the (pickle) sizes 
 > >  > > of the object records contained in a transaction and to 
 > >  > > restrict the range of dumped transactions.
 > >  > > 
 > >  > > This has been enough to analyse the problem: ZCatalog's 
 > >  > > Metadata records caused a transaction size to grow from an 
 > >  > > expected few hundred bytes to about 500 kB.
 > >
 > > But, I can make the extensions available.
 > 
 > I'd like to see your fsdump version ...

Patch attached.

The patch also enhances "FileStorage" and lets its "UndoSearch._readnext"
provide information about the transaction size. This is very valuable
when you want to spot strange transaction sizes via Zope's "Undo" tab
(much more convenient than "fsdump").

-- 
Dieter
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