2012/1/20 Ümit Seren <uemit.se...@gmail.com>
> So I played around a little bit futher.
> I tried to use my new solution (using table.append instead of
> row.append) with following settings in table.openFile()
> METADATA_CACHE_SIZE=2*1024*1024
> NODE_CACHE_SLOTS=1024
>
> I saw the same performance problems like in the previous code. So it
> slows down after a while to 1 table/sec instead of 10 tables/sec
>
> When i change it to NODE_CACHE_SLOTS=0 I don't have any performance
> problems.
>
>
Ah, that's great. Apparently 1024 nodes is a bit too much for the LRU
cache, specially when nodes are not reused a lot. Hmm, perhaps it would be
a good thing to reduce this figure to something like 256 or less (some
benchmarks needed).
Thanks for your double check!
--
Francesc Alted
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