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Diffstat (limited to 'tools/perf/arch/x86/util/iostat.c')
-rw-r--r--tools/perf/arch/x86/util/iostat.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/util/iostat.c b/tools/perf/arch/x86/util/iostat.c
index 366b44d0bb7e..00f645a0c18a 100644
--- a/tools/perf/arch/x86/util/iostat.c
+++ b/tools/perf/arch/x86/util/iostat.c
@@ -403,6 +403,10 @@ void iostat_prefix(struct evlist *evlist,
struct iio_root_port *rp = evlist->selected->priv;
if (rp) {
+ /*
+ * TODO: This is the incorrect format in JSON mode.
+ * See prepare_timestamp()
+ */
if (ts)
sprintf(prefix, "%6lu.%09lu%s%04x:%02x%s",
ts->tv_sec, ts->tv_nsec,