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From Jenny Brown <>
Subject Re: Performance Optimizations and Expected Benchmark Results
Date Mon, 30 Aug 2010 15:42:01 GMT
On Mon, Aug 30, 2010 at 2:53 AM, Ron Ratovsky <> wrote:
> Hi Ted and Jenny,
> Thanks for both your responses.
> In regards to Jenny's question - the answer is yes. There's no problem
> processing the objects in batches. I'd be interested to know why that would
> affect performance.

I'm not 100% confident on this, but in my experience, repeatedly
opening and closing the index is the slow operation -- adding
documents to it is not.  I get better performance by having a routine
that runs every 5 minutes, and adds a batch of documents at once,
rather than trying to add individual items as they come in via an
irregularly timed stream.  Even if it ran once a minute, batching
still gives me better results than individual items.

I don't pretend to know why.  :)  It made sense when I developed the
code but that was a few years ago.  I now only remember what worked,
not the full explanation of why.


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