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+1 for the performance issue. I think it seems to be a recurrent problem.
I've checked my ressource and like other said, my cpu/memory/disk usage does not go higher than 15% and I do have a core i7.
I understand that I'm sure there is a lot to do in the background and lot of reading from metadata and writting to db. However, do we know exactly what's the slowest operation ?
@kovidgoyal
1) It seems that we should need to do a bit of profiling to really target what's the bottleneck. One thing that come to my mind is maybe trying to make a better use of the multi-threading.
2) Is all the import operation through python scripts or it's in the core calibre ? I currently have a windows box so might need a linux distro if want to look at the core (base in the installation dev comments).
3) I'm willing to give some of my time to look at this issue, if you can maybe point me out at where the add books take place ?
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