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| -rw-r--r-- | man/man2/perf_event_open.2 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/man/man2/perf_event_open.2 b/man/man2/perf_event_open.2 index 15411027d7..72d8fd7971 100644 --- a/man/man2/perf_event_open.2 +++ b/man/man2/perf_event_open.2 @@ -1027,6 +1027,10 @@ Inherit does not work for some combinations of .I read_format values, such as .BR PERF_FORMAT_GROUP . +Additionally, using it together with +.I cpu == \-1 +prevents the creation of the mmap ring-buffer used for +logging asynchronous events in sampled mode. .TP .I pinned The |