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-rw-r--r--man2/perf_event_open.24
1 files changed, 3 insertions, 1 deletions
diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
index cc17783ddc..0099ececf6 100644
--- a/man2/perf_event_open.2
+++ b/man2/perf_event_open.2
@@ -1764,7 +1764,9 @@ the mmap buffer.
.TP
.IR aux_head ", " aux_tail ", " aux_offset ", " aux_size " (since Linux 4.1)"
.\" commit 45bfb2e50471abbbfd83d40d28c986078b0d24ff
-The AUX region allows mmaping a separate sample buffer for
+The AUX region allows
+.BR mmap (2)-ing
+a separate sample buffer for
high-bandwidth data streams (separate from the main perf sample buffer).
An example of a high-bandwidth stream is instruction tracing support,
as is found in newer Intel processors.