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Pau Espin Pedrol pespin at sysmocom.deHi Dave, I never personally used it, but as far as I know you should be able to get more performance by using "gtpu-mode kernel-gtp" instead of "gtpu-mode tun" in your config, to avoid doing all packet processing in userspace. Please someone else confirm this. I think you need a capable kernel and libgtpnl to be able to use it. Also, it would be nice if you could provide a linux "perf" output on osmo-ggsn while running your test setup so we can spot possible optimizations to improve osmo-ggsn performance. -- - Pau Espin Pedrol <pespin at sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte