So i created a shitty extension too see how much memory consumption happens before things are sent over dbus. The idea is I ask for ALL events directly from the engine, 10 seconds after zeitgeist starts Here are my observations
find_eventids: starts with 16.8 MB and end up with 25.4 MB find_events: starts with 16.8 MB and end up with 106.2 MB I think for the first case we cant do much However for the second case we need to reduce the memory footprint of the Event and Subject in our datamodel. Maybe by using the __slots__ I also wrote 2 scripts one in python and the other in Vala... Both connect to the DB and ask for all ids. Observations are vala uses 6.6 MB and python 12.9... Maybe we can write our own cursor around the sqlite in C and create bindings for it to allow us to play with the memory and instead of returning lists in fetchall we can make it return tuples ** Attachment added: "memory.py" https://bugs.launchpad.net/zeitgeist/+bug/624310/+attachment/2153964/+files/memory.py -- You received this bug notification because you are a member of Zeitgeist Extensions, which is the registrant for Zeitgeist Extensions. https://bugs.launchpad.net/bugs/624310 Title: Large requests increase memory usage considerably Status in Zeitgeist Framework: Confirmed Status in Zeitgeist Extensions: New Bug description: I'm seeing with standalone Sezen that after running it, mem usage of the zeitgeist-daemon process goes up from ~13MB to ~40MB, this is understandable as when Sezen is starting, it does one big query where it asks for everything grouped by most recent subjects and in my case this returns ~11 thousand events, so the extra 30MB can be explained by allocating memory for the DBus reply. Still, my question is whether Zeitgeist should be at mercy of the applications, where nothing prevents them from spiking the memory usage of the core process. (I already saw a couple of times zeitgeist using 80-100MB of memory on my system). Perhaps there's a way to tell python dbus to free its buffers? _______________________________________________ Mailing list: https://launchpad.net/~zeitgeist Post to : [email protected] Unsubscribe : https://launchpad.net/~zeitgeist More help : https://help.launchpad.net/ListHelp
