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authorAdrian Hunter <adrian.hunter@intel.com>2019-07-10 11:58:02 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-07-10 12:23:55 -0300
commitecc8c9984dae9812a10936cb9c74957b68075e07 (patch)
treeaa2d73eecbad13a23c08392a4904cbebeb4563fe /tools/perf/scripts/python
parent4650c7bed79582c74452d284e45d5b76987c0ef3 (diff)
downloadlinux-ecc8c9984dae9812a10936cb9c74957b68075e07.tar.bz2
perf scripts python: export-to-sqlite.py: Add has_calls column to comms table
Now that a thread's current comm is exported, it shows up in the call graph and call tree even if it has no calls. That can happen because the calls are recorded against the main thread's initial comm. Add a table column to make it easy for the exported-sql-viewer.py script to select only comms with calls. Committer notes: Running the export-to-sqlite.py worked without warnings and using the exported-sql-viewer.py worked as before. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20190710085810.1650-14-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python')
-rw-r--r--tools/perf/scripts/python/export-to-sqlite.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/export-to-sqlite.py b/tools/perf/scripts/python/export-to-sqlite.py
index 97aa66dd2fe1..9156f6a1e5f0 100644
--- a/tools/perf/scripts/python/export-to-sqlite.py
+++ b/tools/perf/scripts/python/export-to-sqlite.py
@@ -606,6 +606,8 @@ def trace_end():
if perf_db_export_calls:
do_query(query, 'CREATE INDEX pcpid_idx ON calls (parent_call_path_id)')
do_query(query, 'CREATE INDEX pid_idx ON calls (parent_id)')
+ do_query(query, 'ALTER TABLE comms ADD has_calls boolean')
+ do_query(query, 'UPDATE comms SET has_calls = 1 WHERE comms.id IN (SELECT DISTINCT comm_id FROM calls)')
printdate("Dropping unused tables")
if is_table_empty("ptwrite"):