Well hard disk space is the most scalable tradeoff. After I made the
page file, everything has been working good now. I'm still syncing at
around #26-9k blocks. Just stopped and restarted as a test but it's
importing in parallel but seems to be working good.

Results look great, I'll be very happy to have a new server running and
play around with it.

Eric Voskuil:
> Version3 header first parallel initial block download is now restartable
> after a controlled shutdown. Also...
>
> I have been informed by a customer who has been evaluating various node
> implementations that version3 downloads 400,000 mainnet blocks in about
> 45 minutes on a 32 GB RAM machine. That's about twice as fast as on my
> old 8 GB machine.
>
> So the < 1.0 hour goal has been achieved!
>
> I expect increasing speed up to 100GB RAM (full chain and indexes in
> RAM). I can't say how many core will be fully utilized, as there is some
> overhead in parallelization that will produce diminishing returns, but I
> assume increasing speed up to around 32 cores. At some point I'll pick
> up a new machine with these specs and test it out. My new goal is 30
> minutes for the full chain :).
>
> I am presently in the process of reintegrating post-initial block
> download chain and mempool management back into version3 for a release
> target in August.
>
> e
>
>
>
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