linux/tools/perf/tests, branch v3.17

perf tools: Move rdtsc() function

2014-07-23T14:48:11Z

Move the rdtsc() function so it can be reusued. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1406035081-14301-24-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Update attr test with PERF_FLAG_FD_CLOEXEC flag

2014-07-18T07:09:53Z

We not support PERF_FLAG_FD_CLOEXEC flag, updating attr tests accordingly. Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-2mgzn5p9u74drmdmxo5unar0@git.kernel.org Signed-off-by: Jiri Olsa

perf tools: Enable close-on-exec flag on perf file descriptor

2014-07-18T07:09:34Z

In commit a21b0b354d4a ('perf: Introduce a flag to enable close-on-exec in perf_event_open()'), flag PERF_FLAG_FD_CLOEXEC was added to perf_event_open(2) syscall to allows userspace to atomically enable close-on-exec behavor when creating the file descriptor. This patch makes perf tools use the new flag if supported by the kernel, so that the event file descriptors got automatically closed if perf tool exec a sub-command. Signed-off-by: Yann Droneaud Cc: Andi Kleen Cc: Arnaldo Carvalho de Melo Cc: Ingo Molnar Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/n/1404160127-7475-1-git-send-email-ydroneaud@opteya.com Signed-off-by: Jiri Olsa

perf tools: Allow TSC conversion on any arch

2014-07-17T15:59:00Z

It is possible to record a perf.data file on one architecture and process it on another. Consequently, TSC conversion functions need to be moved out of the arch directory. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1405332185-4050-40-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move pr_* debug macros into debug object

2014-07-17T15:58:39Z

Moving pr_* debug macros to have it with in same object as debug variables, becase we will change them to use verbose variable in next patch. Signed-off-by: Jiri Olsa Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1405374411-29012-3-git-send-email-jolsa@kernel.org [ Add missing debug.h include in python scripting glue and in the libdw unwind lib ] Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Add test for closing dso objects on EMFILE error

2014-06-12T14:53:23Z

Testing that perf properly closes opened dso objects and tries to reopen in case we run out of allowed file descriptors for dso data. Acked-by: Namhyung Kim Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jean Pihet Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Reviewed by: David Ahern Link: http://lkml.kernel.org/r/1401892622-30848-14-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa

perf tests: Add test for caching dso file descriptors

2014-06-12T14:53:22Z

Adding test that setup test_dso_data__fd_limit and test dso data file descriptors are cached appropriately. Acked-by: Namhyung Kim Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jean Pihet Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1401892622-30848-13-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa

perf tests: Allow reuse of test_file function

2014-06-12T14:53:22Z

Making the test_file function to be reusable for new tests coming in following patches. Also changing the template name of temp files to "/tmp/perf-test-XXXXXX" to easily identify & blame. Acked-by: Namhyung Kim Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jean Pihet Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1401892622-30848-12-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa

perf tests: Spawn child for each test

2014-06-12T14:53:22Z

In upcoming tests we will setup process limits, which might affect other tests. Spawning child for each test to prevent this. Acked-by: Namhyung Kim Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jean Pihet Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Reviewed-by: David Ahern Link: http://lkml.kernel.org/r/1401892622-30848-11-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa

Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

2014-06-12T11:54:42Z

Pull perf/core improvements from Arnaldo Carvalho de Melo: User visible: * Improve 'perf probe' error messages, moving some diagnostic messages to only appear in --verbose mode and fixing up some error reporting related to variables and struct members. (Masami Hiramatsu) * Reflow 'perf timechart' man page. (Stanislav Fomichev) Developer stuff: * Be more precise when reporting missing libraries in a static tool build. (Arnaldo Carvalho de Melo) * Show error messages from the multiple make invoked from 'make build-test'. (Arnaldo Carvalho de Melo) Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Ingo Molnar