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| author | Eelco Chaudron <echaudro@redhat.com> | 2020-05-26 12:21:42 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-06-02 00:38:19 +0300 |
| commit | 272d51af32890632134845ddf35318c11da20c7b (patch) | |
| tree | 2a0a27eb06b4c0b624d4bf7aa45deb9ffdf57798 /Documentation/futex-requeue-pi.txt | |
| parent | 2b983b407a3a1f47f7d8595245066854ff352c65 (diff) | |
| download | linux-272d51af32890632134845ddf35318c11da20c7b.tar.xz | |
libbpf: Add API to consume the perf ring buffer content
This new API, perf_buffer__consume, can be used as follows:
- When you have a perf ring where wakeup_events is higher than 1,
and you have remaining data in the rings you would like to pull
out on exit (or maybe based on a timeout).
- For low latency cases where you burn a CPU that constantly polls
the queues.
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/159048487929.89441.7465713173442594608.stgit@ebuild
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'Documentation/futex-requeue-pi.txt')
0 files changed, 0 insertions, 0 deletions