[Bug 772841] udpsrc: high CPU usage at high packet rate

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=772841

--- Comment #42 from Mathieu Duponchelle <mduponchelle1 at gmail.com> ---
(In reply to Sebastian Dröge (slomo) from comment #41)

> As Nicolas mentioned already this breaks the pool. We need to do something
> more clever here. Maybe only ever use a bufferpool if MTU is set, and don't
> set it by default. If MTU is set we always allocate that much and don't need
> to do any magic with different memories.

My thinking here was to optimize the default case, while not breaking the more
exotic ones, meaning that the buffer pool can be used by default without any
user interaction. This doesn't really "break" or "kill" anything, just means
the larger than 1500 MTU case still requires allocation, which we can't really
work around anyway?

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