1 files changed, 26 insertions, 3 deletions

diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt
index 6936fdb6d472..8974e208cba6 100644
--- a/tools/perf/Documentation/perf-diff.txt
+++ b/tools/perf/Documentation/perf-diff.txt
@@ -19,9 +19,32 @@ If no parameters are passed it will assume perf.data.old and perf.data.
 
 OPTIONS
 -------
--p::
---percentage::
-        Show percentages instead of raw counts
+-d::
+--dsos=::
+        Only consider symbols in these dsos. CSV that understands
+        file://filename entries.
+
+-C::
+--comms=::
+        Only consider symbols in these comms. CSV that understands
+        file://filename entries.
+
+-S::
+--symbols=::
+        Only consider these symbols. CSV that understands
+        file://filename entries.
+
+-s::
+--sort=::
+        Sort by key(s): pid, comm, dso, symbol.
+
+-t::
+--field-separator=::
+
+        Use a special separator character and don't pad with spaces, replacing
+        all occurances of this separator in symbol names (and other output)
+        with a '.' character, that thus it's the only non valid separator.
+
 -v::
 --verbose::
         Be verbose, for instance, show the raw counts in addition to the