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drivers: net: xgene: Enable MDIO driver drivers: net: xgene: Add backward compatibility drivers: net: phy: xgene: Add MDIO driver ... 2016-07-09net: tracepoint napi:napi_poll add work and budgetJesper Dangaard Brouer An important information for the napi_poll tracepoint is knowing the work done (packets processed) by the napi_poll() call. Add both the work done and budget, as they are related. Handle trace_napi_poll() param change in dropwatch/drop_monitor and in python perf script netdev-times.py in backward compat way, as python fortunately supports optional parameter handling. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2016-06-22perf script stackcollapse: Remove reference to the perl interpreterArnaldo Carvalho de Melo It is ignored and this is actually a python script, not a perl one. Reported-by: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Milian Wolff <milian.wolff@kdab.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lkml.kernel.org/n/tip-0w4bpbqd79v3sl34jvpr11v0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2016-06-21perf script: Add stackcollapse.py scriptPaolo Bonzini Add stackcollapse.py script as an example of parsing call chains, and also of using optparse to access command line options. The flame graph tools include a set of scripts that parse output from various tools (including "perf script"), remove the offsets in the function and collapse each stack to a single line. The website also says "perf report could have a report style [...] that output folded stacks directly, obviating the need for stackcollapse-perf.pl", so here it is. This script is a Python rewrite of stackcollapse-perf.pl, using the perf scripting interface to access the perf data directly from Python. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Brendan Gregg <bgregg@netflix.com> Link: http://lkml.kernel.org/r/1460467573-22989-1-git-send-email-pbonzini@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2016-05-06perf script: Update export-to-postgresql to support callchain exportChris Phlipot Update the export-to-postgresql.py to support the newly introduced callchain export. callchains are added into the existing call_paths table and can now be associated with samples when the "callpaths" commandline option is used with the script. Ex.: $ perf script -s export-to-postgresql.py example_db all callchains Includes the following changes to enable callchain export via the python export APIs: - Add the "callchains" commandline option, which is used to enable callchain export by setting the perf_db_export_callchains global - Add perf_db_export_callchains checks for call_path table creation and population. - Add call_path_id to samples_table to conform with the new API example usage and output using a small test app: test_app.c: volatile int x = 0; void inc_x_loop() { int i; for(i=0; i<100000000; i++) x++; } void a() { inc_x_loop(); } void b() { inc_x_loop(); } int main() { a(); b(); return 0; } example usage: $ gcc -g -O0 test_app.c $ perf record --call-graph=dwarf ./a.out [ perf record: Woken up 77 times to write data ] [ perf record: Captured and wrote 19.373 MB perf.data (2404 samples) ] $ perf script -s scripts/python/export-to-postgresql.py example_db all callchains $ psql example_db example_db=# SELECT (SELECT name FROM symbols WHERE id = cps.symbol_id) as symbol, (SELECT name FROM symbols WHERE id = (SELECT symbol_id from call_paths where id = cps.parent_id)) as parent_symbol, sum(period) as event_count FROM samples join call_paths as cps on call_path_id = cps.id GROUP BY cps.id,evsel_id ORDER BY event_count DESC LIMIT 5; symbol | parent_symbol | event_count ------------------+--------------------------+------------- inc_x_loop | a | 734250982 inc_x_loop | b | 731028057 unknown | unknown | 1335858 task_tick_fair | scheduler_tick | 1238842 update_wall_time | tick_do_update_jiffies64 | 650373 (5 rows) The above data shows total "self time" in cycles for each call path that was sampled. It is intended to demonstrate how it accounts separately for the two ways to reach the "inc_x_loop" function(via "a" and "b"). Recursive common table expressions can be used as well to get cumulative time spent in a function as well, but that is beyond the scope of this basic example. Signed-off-by: Chris Phlipot <cphlipot0@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1461831551-12213-7-git-send-email-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2016-04-19perf script: Fix postgresql ubuntu install instructionsChris Phlipot The current instructions for setting up an Ubuntu system for using the export-to-postgresql.py script are incorrect. The instructions in the script have been updated to work on newer versions of ubuntu. -Add missing dependencies to apt-get command: python-pyside.qtsql, libqt4-sql-psql -Add '-s' option to createuser command to force the user to be a superuser since the command doesn't prompt as indicated in the current instructions. Tested on: Ubuntu 14.04, Ubuntu 16.04(beta) Signed-off-by: Chris Phlipot <cphlipot0@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1461056164-14914-3-git-send-email-cphlipot0@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2016-02-12perf python scripting: Append examples to err msg about audit-libs-pythonTaeung Song To print syscall names, the audit-libs-python package is required.. If not installed, it prints this error string: # perf script syscall-counts Install the audit-libs-python package to get syscall names. But the package name is different in Ubuntu, mention that in the error message, similar to a error message of util/trace-event-scripting.c: # perf script syscall-counts Install the audit-libs-python package to get syscall names. For example: # apt-get install python-audit (Ubuntu) # yum install audit-libs-python (Fedora) etc. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1455018790-13425-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>