diff options
| -rw-r--r-- | man2/perf_event_open.2 | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 index 774c133d04..8a0766d820 100644 --- a/man2/perf_event_open.2 +++ b/man2/perf_event_open.2 @@ -2585,10 +2585,13 @@ event file descriptor with .BR select (2), or .BR epoll (7). -Alternately, a SIGIO signal handler can be created and -the event configured with -.BR fcntl (2) -to generate SIGIO signals. +Alternatively, the overflow events can be captured via sa signal handler, +by enabling I/O signaling on the file descriptor; see the discussion of the +.BF F_SETOWN +and +.BR F_SETSIG +operations in +.BR fcntl (2). Overflows are generated only by sampling events .RI ( sample_period |