Jürgen Herrmann wrote:
> is there a strict requirement for oids to be increasing?

No, but obviously there is a strict requirement that new_oid() return 
unique OIDs.

> if RadosStorage could pre-allocate oids in batches of thousands, that
> would probably give me a big performance win, or to put it the other
> way round: rados is not designed to be used for such time-critical and
> at the same time completely synced operations. and getting new oids
> will happen often...

ZEO also allocates OIDs in large batches, I believe.

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