ok, so it seems another big bottleneck in startup is Xapian calls. Specifically calls to get_mset() these calls take over 4 seconds in total on my machine.
Most of these calls are made from _blocking_perform_search() in softwarecenter/db/enquire.py Again aside from upstream optimizations to Xapian there doesn't appear to be any easy way around this. The maxitems parameter can be set to 0 to speedup get_mset() but this reduces the accuracy of the mset.get_matches_estimated() call which it seems the software center relies on being accurate so I dont think this change can be made. So with the pickle load time and Xapian calls that I have tracked so far that adds up to around 25% of the startup time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/845579 Title: software-center terribly slow, ubuntu freezing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/845579/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
