kernel.git/samples/bpf/spintest_user.c, branch linux-4.6.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-4.6.y2016-03-09T04:22:02Zsamples/bpf: add bpf map stress test2016-03-09T04:22:02ZAlexei Starovoitov2016-03-08T23:07:52Zurn:sha1:9d8b612d88e81c2cf7dbc0d4a827da6ca0d848e0
this test calls bpf programs from different contexts:
from inside of slub, from rcu, from pretty much everywhere,
since it kprobes all spin_lock functions.
It stresses the bpf hash and percpu map pre-allocation,
deallocation logic and call_rcu mechanisms.
User space part adding more stress by walking and deleting map elements.
Note that due to nature bpf_load.c the earlier kprobe+bpf programs are
already active while loader loads new programs, creates new kprobes and
attaches them.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>