Marshall

Thanks for your informative follow up. I picked up on the large transaction count optimization jointly from reading up on LMDB as well as using it previously with BerkeleyDB. I borrowed KENTNL's single_txn trick that he used in CHI::Driver::LMDB module. This is what took a lot of the time off of the original 32 hours. Most of the remainder improvement was due to setting LMDB ReadMode true and setting the environment flags to MDB_WRITEMAP | MDB_NOMETASYNC | MDB_MAPASYNC | MDB_NORDAHEAD

I am currently committing after 100 000 inserts. I did some testing up to 1,000,000 and found insignificant improvements after 100,000. So I decided to keep 100,000 as my limit

Thanks again for your sage advice!

lbe

In reply to Re^4: Compile perl for performance by learnedbyerror
in thread Compile perl for performance by learnedbyerror

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