GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-04-07 06:54:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
738618 commits 24 branches 25 tags 2.7 GiB
Commit graph

2 commits

Author SHA1 Message Date
Alexei Starovoitov
569cc39d39 samples/bpf: fix trace_output example 
llvm cannot always recognize memset as builtin function and optimize
it away, so just delete it. It was a leftover from testing
of bpf_perf_event_output() with large data structures.

Fixes: 39111695b1 ("samples: bpf: add bpf_perf_event_output example")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2016-04-28 17:29:45 -04:00
Alexei Starovoitov
39111695b1 samples: bpf: add bpf_perf_event_output example 
Performance test and example of bpf_perf_event_output().
kprobe is attached to sys_write() and trivial bpf program streams
pid+cookie into userspace via PERF_COUNT_SW_BPF_OUTPUT event.

Usage:
$ sudo ./bld_x64/samples/bpf/trace_output
recv 2968913 events per sec

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-10-22 06:42:15 -07:00