Fred Drake wrote:
Are these properly labelled? The way I read this is that things are just slightly faster without the patch.
Yes, you read it correctly (although I think the real answer is "identical performance, within margin of error").
Is there anything to indicate that memory usage is actually improved?
I'm not there yet. This is essentially a "zero-copy" optimization; if I can show that the functionality is equivalent, with approximately the same performance under unloaded sites, *then* I can look into whether it helps. I envision two possible benefits, which will materialize only "at scale": - Removing the need for the appserver thread to malloc and copy the Big String *may* be a win on a memory-constrained system (large allocations can induce funny non-linearities on the underlying malloc implementation). Not having to copy values, even in C, should be a "pure" win, in any case. - Returning the iterator to medusa means that the application thread becomes available to service other threads that much more quickly. Even if the malloc issues can't be demonstrated, the increase in concurrency *should* be a win here. Tres. -- =============================================================== Tres Seaver tseaver@zope.com Zope Corporation "Zope Dealers" http://www.zope.com