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-rw-r--r--tools/perf/Documentation/perf-buildid-cache.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index 3f285ba6e1f9..f6de0952ff3c 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -48,6 +48,9 @@ OPTIONS
--purge=::
Purge all cached binaries including older caches which have specified
path from the cache.
+-P::
+--purge-all::
+ Purge all cached binaries. This will flush out entire cache.
-M::
--missing=::
List missing build ids in the cache for the specified file.