Messages in this thread | | | Date | Fri, 21 Aug 2015 12:28:13 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH V8 10/25] perf tools: Add example call-graph script |
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Em Fri, Aug 21, 2015 at 12:21:25PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Fri, Aug 21, 2015 at 12:11:33PM -0300, Arnaldo Carvalho de Melo escreveu: > > [acme@zoo ~]$ perf script -s ~/libexec/perf-core/scripts/python/export-to-postgresql.py bts_example branches calls > > 2015-08-21 12:10:00.504126 Creating database... > > QSqlDatabase: QPSQL driver not loaded > > QSqlDatabase: available drivers: QSQLITE > > QSqlDatabase: an instance of QCoreApplication is required for loading driver plugins > > QSqlQuery::exec: database not open > > Traceback (most recent call last): > > File "/home/acme/libexec/perf-core/scripts/python/export-to-postgresql.py", line 87, in <module> > > do_query(query, 'CREATE DATABASE ' + dbname) > > File "/home/acme/libexec/perf-core/scripts/python/export-to-postgresql.py", line 78, in do_query > > raise Exception("Query failed: " + q.lastError().text()) > > Exception: Query failed: Driver not loaded Driver not loaded > > Error running python script /home/acme/libexec/perf-core/scripts/python/export-to-postgresql.py > > [acme@zoo ~]$ > > A-ha, this was missing: > > [root@zoo ~]# rpm -ql qt-postgresql > /usr/lib64/qt4/plugins/sqldrivers/libqsqlpsql.so > [root@zoo ~]# > > [acme@zoo ~]$ perf script -s ~/libexec/perf-core/scripts/python/export-to-postgresql.py bts_example branches calls > 2015-08-21 12:20:01.841677 Creating database... > 2015-08-21 12:20:02.556853 Writing to intermediate files... > 2015-08-21 12:20:03.262814 Copying to database... > 2015-08-21 12:20:03.783109 Removing intermediate files... > 2015-08-21 12:20:03.790282 Adding primary keys > 2015-08-21 12:20:04.294342 Adding foreign keys > 2015-08-21 12:20:04.718238 Done > [acme@zoo ~]$ > > Now to the next steps... Lets see how this looks like with BTS...
So, after running:
[acme@zoo linux]$ python tools/perf/scripts/python/call-graph-from-postgresql.py bts_example
I got a GUI and after expanding some callchains I took this screenshot:
http://vger.kernel.org/~acme/perf/call_graph_example_intel_bts.png
Cool stuff! But it seems the COMM got messed up? I.e. that "1380:1380" first level after "ls".
- Arnaldo
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