X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=tools%2Fperf%2FDocumentation%2Fperf-stat.txt;h=4e074a6608269793d52a2ea4f28061532bb9798b;hb=a18e2fa5e670a1b84e66522b221c42875b02028a;hp=47469abdcc1c11e2256effc86845232f78785075;hpb=638d3c63811e31b2745f7fdd568b38c8abcffe03;p=firefly-linux-kernel-4.4.55.git

diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 47469abdcc1c..4e074a660826 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -128,8 +128,9 @@ perf stat --repeat 10 --null --sync --pre 'make -s O=defconfig-build/clean' -- m
 
 -I msecs::
 --interval-print msecs::
-	Print count deltas every N milliseconds (minimum: 100ms)
-	example: perf stat -I 1000 -e cycles -a sleep 5
+Print count deltas every N milliseconds (minimum: 10ms)
+The overhead percentage could be high in some cases, for instance with small, sub 100ms intervals.  Use with caution.
+	example: 'perf stat -I 1000 -e cycles -a sleep 5'
 
 --per-socket::
 Aggregate counts per processor socket for system-wide mode measurements.  This