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-rw-r--r--stap.1.in8
1 files changed, 7 insertions, 1 deletions
diff --git a/stap.1.in b/stap.1.in
index 0546d022..b7c116ca 100644
--- a/stap.1.in
+++ b/stap.1.in
@@ -865,7 +865,13 @@ script is translated again assuming the same conditions exist (same kernel
version, same systemtap version, etc.). Cached files are stored in
the
.I $SYSTEMTAP_DIR/cache
-directory, which may be periodically cleaned/erased by the user.
+directory. The cache can be limited by having the file
+.I cache_mb_limit
+placed in the cache directory (shown above) containing only an ASCII
+integer representing how many MiB the cache should not exceed. Note that
+this is a 'soft' limit in that the cache will be cleaned after a new entry
+is added, so the cache size may temporarily exceed this limit. In the
+absence of this file, cache cleaning is up to the user.
.SH SAFETY AND SECURITY
Systemtap is an administrative tool. It exposes kernel internal data