[Zope-dev] Request for comments: Directory storage

[Petru Paler]

> > It would be great if you could do it, but beware that you will be
> > benchmarking a lot of overhead if you only plan to measure storage
> > performance. Why not use ZODB directly ?
> 
> If I talk HTTP, it measures things fully - Python's interpreter lock
> will mean a storage system written in python will benchmark better
> without having to compete with ZServer, and vice versa for storage
> systems with non-pythonic bits.

Yes, you are right.

> > What filesystem does that use ?
> 
> No idea :-) Something log based that is very fast and handles huge
> directories happily. It also appears that another member of this
> list has an EMC Symmetrix box to test on, which I believe is the next (and 
> highest) level up from a Netapp.

Mmmm... I heard that Network Appliance hired a couple of the SGI engineers
that designed XFS ?

> I've attached a prerelease alpha of zouch.py for giggles. Not even a
> command line yet, so you will need to edit some code at the bottom.
> The current settings generate about 360 directories and about 36000 files,
> and proceeds to make about 180000 reads. This bloated by test ZODB
> to just over 200MB and took about 2.6 hours attacking my development Zope
> server from another host on my LAN.

Cool :)
Thanks for writing this, it will be very useful for benchmarking.

-Petru