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| author | Teng Qin <qinteng@fb.com> | 2017-06-02 21:03:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-04 21:58:15 -0400 |
| commit | 41e9a8046c92e26a68fdf5a4cb831b7c60113602 (patch) | |
| tree | 63fab2b95741918a420f0a8d7b6eb3966e043fdb /certs | |
| parent | f91840a32deef5cb1bf73338bc5010f843b01426 (diff) | |
| download | linux-41e9a8046c92e26a68fdf5a4cb831b7c60113602.tar.gz linux-41e9a8046c92e26a68fdf5a4cb831b7c60113602.tar.bz2 linux-41e9a8046c92e26a68fdf5a4cb831b7c60113602.zip | |
samples/bpf: add tests for more perf event types
$ trace_event
tests attaching BPF program to HW_CPU_CYCLES, SW_CPU_CLOCK, HW_CACHE_L1D and other events.
It runs 'dd' in the background while bpf program collects user and kernel
stack trace on counter overflow.
User space expects to see sys_read and sys_write in the kernel stack.
$ tracex6
tests reading of various perf counters from BPF program.
Both tests were refactored to increase coverage and be more accurate.
Signed-off-by: Teng Qin <qinteng@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'certs')
0 files changed, 0 insertions, 0 deletions