Comment 2 for bug 1580395

I cannot reproduce this. Starting calibre-server with a 40K book
library, connecting to it via 7 different clients and browsing around
causes total memory consumption to not rise beyond 550MB -- note that
total memory consumption is proportional to library size, since the
server keeps the db in memory. For a library of a few thousand books
typical mem consumption is ~100MB.

I'd guess this is something local to your calibre installation. Look for
third party plugins you have installed or library conflicts.

 status invalid