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-rw-r--r--man2/perf_event_open.211
1 files changed, 7 insertions, 4 deletions
diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2
index 24df4922be..b9fdb4a8a1 100644
--- a/man2/perf_event_open.2
+++ b/man2/perf_event_open.2
@@ -2183,15 +2183,18 @@ The branch was in a transactional memory transaction.
.IR abort " (since Linux 3.11)"
.\" commit 135c5612c460f89657c4698fe2ea753f6f667963
The branch was in an aborted transactional memory transaction.
+.TP
+.IR cycles " (since Linux 4.3)"
+.\" commit 71ef3c6b9d4665ee7afbbe4c208a98917dcfc32f
+This reports the number of cycles elapsed since the
+previous branch stack update.
.P
The entries are from most to least recent, so the first entry
has the most recent branch.
Support for
-.I mispred
-and
-.I predicted
-is optional; if not supported, both
+.IR mispred ", " predicted " and " cycles
+is optional; if not supported, those
values will be 0.
The type of branches recorded is specified by the