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Subject[PATCH 6/6] perf scripts python: exported-sql-viewer.py: Fix time chart call tree
Date
Using Python version 3.8.2 and PySide2 version 5.14.0, time chart call tree
would not expand the tree to the result. Fix by using setExpanded().

Example:
$ perf record -e intel_pt//u uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.034 MB perf.data ]
$ perf script --itrace=bep -s ~/libexec/perf-core/scripts/python/export-to-sqlite.py perf.data.db branches calls
2020-06-26 15:32:14.928997 Creating database ...
2020-06-26 15:32:14.933971 Writing records...
2020-06-26 15:32:15.535251 Adding indexes
2020-06-26 15:32:15.542993 Dropping unused tables
2020-06-26 15:32:15.549716 Done
$ python3 ~/libexec/perf-core/scripts/python/exported-sql-viewer.py perf.data.db

Select: Charts -> Time chart by CPU
Move mouse over middle of chart
Right-click and select Show Call Tree

Before: displays Call Tree but not expanded to selected time
After: displays Call Tree expanded to selected time

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Fixes: e69d5df75d74d ("perf scripts python: exported-sql-viewer.py: Add ability for Call tree to open at a specified task and time")
Cc: stable@vger.kernel.org
---
tools/perf/scripts/python/exported-sql-viewer.py | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
index 0f295055ac6b..7daa8bb70a5a 100755
--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -1130,6 +1130,7 @@ class CallTreeWindow(TreeWindowBase):
child = self.model.index(row, 0, parent)
if child.internalPointer().dbid == dbid:
found = True
+ self.view.setExpanded(parent, True)
self.view.setCurrentIndex(child)
parent = child
break
@@ -1142,6 +1143,7 @@ class CallTreeWindow(TreeWindowBase):
return
last_child = None
for row in xrange(n):
+ self.view.setExpanded(parent, True)
child = self.model.index(row, 0, parent)
child_call_time = child.internalPointer().call_time
if child_call_time < time:
@@ -1154,9 +1156,11 @@ class CallTreeWindow(TreeWindowBase):
if not last_child:
if not found:
child = self.model.index(0, 0, parent)
+ self.view.setExpanded(parent, True)
self.view.setCurrentIndex(child)
return
found = True
+ self.view.setExpanded(parent, True)
self.view.setCurrentIndex(last_child)
parent = last_child

--
2.17.1
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