• Alexei Starovoitov's avatar
    samples/bpf: add bpf map stress test · 9d8b612d
    Alexei Starovoitov authored
    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: default avatarAlexei Starovoitov <ast@kernel.org>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    9d8b612d