29 Apr, 2016

1 commit

• 569cc39d3   samples/bpf: fix trace_output example ... Browse Code »

  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: 39111695b1b8 ("samples: bpf: add bpf_perf_event_output example")
  Signed-off-by: Alexei Starovoitov
  Signed-off-by: David S. Miller

  Alexei Starovoitov

  2016-04-29 05:29:45 +0800  

22 Oct, 2015

1 commit

• 39111695b   samples: bpf: add bpf_perf_event_output example ... Browse Code »

  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
  Signed-off-by: David S. Miller

  Alexei Starovoitov

  2015-10-22 21:42:15 +0800