Re: [Evolution-hackers] Memory consumption and virtual machines

[Jeffrey Stedfast <fejj novell com>]

I have to wonder if it's even worth ever merging the mmap hack into
Evolution at all. If the plan is to finish Zucchi's disk-summary branch,
which also solves the memory problems (afaik) as well as:

1. introducing an API for using cursors to get at message infos
2. better designed on-disk format that uses B-Trees


the problem with philip's mmap file format is that the strings that will
be hit for sorting/viewing/etc are all spread out over a huge number of
pages. I just see this being re-examined later to try and design the
format to better optimise it by compacting all the strings into a strtab
type thing.

I also don't like how it has to reload the summary anytime new messages
arrive.

I just don't get the feeling this is really all that well thought out
and it scares me.

I'd just hate to see a rush job come out of this

Jeff


On Tue, 2006-07-18 at 13:26 -0500, Federico Mena Quintero wrote:
> On Tue, 2006-07-18 at 18:29 +0200, Philip Van Hoof wrote:
> 
> > I'm waiting for the decision (yours) of making this optional using a
> > compilation flag or at run-time.
> 
> Let's do this in the usual manner:
> 
> 0. Polish the patch in the usual way:  make sure it follows the
> indentation and naming conventions of the surrounding code, etc.
> 
> 1. Branch evolution-data-server into HEAD (development, with Philip's
> patch), and the stable branch (without the patch).
> 
> 2. Make the patch *mandatory* in HEAD, so that it gets a good amount of
> testing.
> 
> 3. ???
> 
> 4. Profit!!!
> 
> I'd suggest that (3) become "write a good stress-test suite for Camel,
> independent of Evolution".  We need that anyway.
> 
> Novell already has a bunch of LDTP stuff to test the Evo mailer from the
> user's viewpooint - run those tests on the patched version to see how
> well they work.  [Varadhan, those tests are already part of our QA
> process, aren't they?]
> 
>   Federico
> 
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-- 
Jeffrey Stedfast
Evolution Hacker - Novell, Inc.
fejj novell com  - www.novell.com