OPTIONS := { { -V | --version } | { -h | --help } | { [-s | --stderr } | { [-c | --cgroup] cgroup} | { [-l | --libdir ] libdir} | [{ -d | --debug }] } { [-r | --learning_rate ] learning_rate} { [-R | --rollback ]} { [-S | --support ]} { [-p | --port ] port} { [-q | --query] query}

bpftune requires CAP_BPF and CAP_TRACING capabilities, or CAP_SYS_ADMIN on older systemes. It is run via a systemd service, but can also be run standalone if required. To probe if your system supports the BPF features required for bpftune, run "bpftune -S". Basic bptune support requires BPF ring buffer, BPF hashmap and BPF sock ops and k[ret]probe support. On more modern systems, BPF tracing programs and BPF iterators are used. Individual tuners support legacy mode operation where possible. In order to support per-network-namespace tuning, netns cookie support is required; without that, only global tuning is supported.