litmus-rt.git/tools/perf/scripts/perl, branch linux-tip

perf trace scripting: remove system-wide param from shell scripts

2010-11-10T14:08:20+00:00

Including -a unconditionally when recording doesn't allow for the
option of running scripts without it.  Future patches will add add it
back if needed at run-time.

Signed-off-by: Tom Zanussi 
Acked-by: Arnaldo Carvalho de Melo

perf trace: Use $PERF_EXEC_PATH in canned report scripts

2010-10-23T17:31:20+00:00

Set $PERF_EXEC_PATH before starting the record and report scripts, and
make them use it where necessary.

Cc: Ingo Molnar 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
LKML-Reference: <1286723403.2955.205.camel@localhost>
Signed-off-by: Ben Hutchings 
Signed-off-by: Arnaldo Carvalho de Melo

perf/trace/scripting: workqueue-stats script cleanup

2010-05-10T22:50:58+00:00

Some minor fixes for the workqueue-stats script:

 - Fix nuisance 'use of uninitialized value' warnings

Cc: Frédéric Weisbecker 
Cc: Ingo Molnar 
LKML-Reference: <1273466820-9330-6-git-send-email-tzanussi@gmail.com>
Signed-off-by: Tom Zanussi 
Signed-off-by: Arnaldo Carvalho de Melo

perf/trace/scripting: wakeup-latency script cleanup

2010-05-10T22:50:57+00:00

Some minor fixes for the wakeup-latency script:

 - Fix nuisance 'use of uninitialized value' warnings

 - Avoid divide-by-zero error

Cc: Frédéric Weisbecker 
Cc: Ingo Molnar 
LKML-Reference: <1273466820-9330-5-git-send-email-tzanussi@gmail.com>
Signed-off-by: Tom Zanussi 
Signed-off-by: Arnaldo Carvalho de Melo

perf/trace/scripting: rwtop script cleanup

2010-05-10T22:50:56+00:00

A couple of fixes for the rwtop script:

- printing the totals and clearing the hashes in the signal handler
  eventually leads to various random and serious problems when running
  the rwtop script continuously.  Moving the print_totals() calls to
  the event handlers solves that problem, and the event handlers are
  invoked frequently enough that it doesn't affect the timeliness of
  the output.

- Fix nuisance 'use of uninitialized value' warnings

Cc: Frédéric Weisbecker 
Cc: Ingo Molnar 
Message-Id: <1273466820-9330-4-git-send-email-tzanussi@gmail.com>
Signed-off-by: Tom Zanussi 
Signed-off-by: Arnaldo Carvalho de Melo

perf/trace/scripting: rw-by-pid script cleanup

2010-05-10T22:50:55+00:00

Some minor fixes for the rw-by-pid script:

- Fix nuisance 'use of uninitialized value' warnings

- Change the failed read/write sections to sort by error counts

Cc: Frédéric Weisbecker 
Cc: Ingo Molnar 
LKML-Reference: <1273466820-9330-3-git-send-email-tzanussi@gmail.com>
Signed-off-by: Tom Zanussi 
Signed-off-by: Arnaldo Carvalho de Melo

perf/trace/scripting: failed-syscalls script cleanup

2010-05-10T22:50:54+00:00

A couple small fixes for the failed syscalls script:

- The script description says it can be restricted to a specific comm,
  make it so.

- silence the match output in the shell script

Cc: Frédéric Weisbecker 
Cc: Ingo Molnar 
LKML-Reference: <1273466820-9330-2-git-send-email-tzanussi@gmail.com>
Signed-off-by: Tom Zanussi 
Signed-off-by: Arnaldo Carvalho de Melo

perf: Remove leftover useless options to record trace events from scripts

2010-04-30T17:55:00+00:00

-f, -c 1, -R are now useless for trace events recording, moreover
-M is useless and event hurts.

Remove them from the documentation examples and from record scripts.

Signed-off-by: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Peter Zijlstra 
Cc: Arnaldo Carvalho de Melo 
Cc: Paul Mackerras 
Cc: Tom Zanussi

perf trace/scripting: Enable scripting shell scripts for live mode

2010-04-14T09:56:08+00:00

It should be possible to run any perf trace script in 'live
mode'. This requires being able to pass in e.g. '-i -' or other
args, which the current shell scripts aren't equipped to handle.
 In a few cases, there are required or optional args that also
need special handling. This patch makes changes the current set
of shell scripts as necessary.

Signed-off-by: Tom Zanussi 
Acked-by: Thomas Gleixner 
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: k-keiichi@bx.jp.nec.com
Cc: acme@ghostprotocols.net
LKML-Reference: <1270184365-8281-11-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar

perf trace/scripting: Add rwtop and sctop scripts

2010-04-14T09:56:08+00:00

A couple of scripts, one in Python and the other in Perl, that
demonstrate 'live mode' tracing.  For each, the output of the
perf event stream is fed continuously to the script, which
continuously aggregates the data and reports the current results
every 3 seconds, or at the optionally specified interval.  After
the current results are displayed, the aggregations are cleared
and the cycle begins anew.

To run the scripts, simply pipe the output of the 'perf trace
record' step as input to the corresponding 'perf trace report'
step, using '-' as the filename to -o and -i:

 $ perf trace record sctop -o - | perf trace report sctop -i -

Also adds clear_term() utility functions to the Util.pm and
Util.py utility modules, for use by any script to clear the
screen.

Signed-off-by: Tom Zanussi 
Acked-by: Thomas Gleixner 
Cc: fweisbec@gmail.com
Cc: rostedt@goodmis.org
Cc: k-keiichi@bx.jp.nec.com
Cc: acme@ghostprotocols.net
LKML-Reference: <1270184365-8281-10-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar