Lennart PoetteringHere's the third published video of my FOSDEM talks, about the Varlink IPC system:
https://video.fosdem.org/2026/ub2147/NFNKEK-varlink-ipc-system-keynote.av1.webm
This was the last one of the three. Enjoy!
Sebastian Wick@pid_eins should have counted the context switches of a portal call for maximum effect :p
@swick i am curious, for some simple portal how many context switches would you guess? (For a single portal gated request, ideally non-interactive if there is such a thing)
best case: 6 context switches [request: app -> dbus-proxy -> broker -> portal frontend] -> [response: broker -> dbus-proxy -> app]
but with auth required on every connection: 8 context switches [request: app -> dbus-proxy -> broker -> portal frontend -> [credentials: broker -> portal frontend]] -> [response: broker -> dbus-proxy -> app]
and with a backend call: 12 context switches [request: app -> dbus-proxy -> broker -> portal frontend -> [credentials: broker -> portal frontend] -> broker -> portal backend] -> [response: broker -> portal frontend -> broker -> dbus-proxy -> app]
@pid_eins oh, and with varlink and appd it can be exactly two because no more dbus-proxy, no more frontend/backend split, and no call for the creds/permissions.
@swick yippiiiehh!