Comment 8 for bug 1395421
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| Daniel van Vugt (vanvugt) wrote Re: Protocol (exchange_buffer) replies are being sent from the compositor thread, holding up the render loop | #8 |
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1b1ed1a
(Get the code!)
Here's a fresh profile from the latest lp:mir code (using NBS now).
It shows much the same problem as essentially 10% of the server's real time is spent under clean_onscreen_
Although you need to keep in mind this profile is exaggerated with 49 clients rendering simultaneously. So the fact that protocol IO is taking around 50% of Mir's time and the other 50% rendering is not interesting. What is interesting is the fact that 20% of the renderer's time is still spent in IPC sending buffer replies when it should be doing rendering.