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-rw-r--r--tools/perf/util/sort.h18
1 files changed, 12 insertions, 6 deletions
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index de3303f..7f0c0a8 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -93,18 +93,24 @@ struct hist_entry {
s32 cpu;
u8 cpumode;
- struct hist_entry_diff diff;
-
/* We are added by hists__add_dummy_entry. */
bool dummy;
- /* XXX These two should move to some tree widget lib */
- u16 row_offset;
- u16 nr_rows;
-
bool init_have_children;
char level;
u8 filtered;
+ union {
+ /*
+ * Since perf diff only supports the stdio output, TUI
+ * fields are only accessed from perf report (or perf
+ * top). So make it an union to reduce memory usage.
+ */
+ struct hist_entry_diff diff;
+ struct /* for TUI */ {
+ u16 row_offset;
+ u16 nr_rows;
+ };
+ };
char *srcline;
struct symbol *parent;
struct rb_root sorted_chain;
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