linux/tools/perf/util/thread_map.c, branch v4.5

perf thread_map: Add thread_map__new_event function

2015-12-17T17:38:16Z

Introducing the thread_map__new_event function to create a struct thread_map object from a thread_map event. Signed-off-by: Jiri Olsa Tested-by: Kan Liang Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1445784728-21732-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf thread_map: Free strlist on constructor error path

2015-12-10T18:47:51Z

Signed-off-by: Namhyung Kim Reviewed-by: Josh Poimboeuf Cc: David Ahern Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1449716459-23004-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

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

2015-07-21T05:58:06Z

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: New features: - Allow filtering out of perf's PID via 'perf record --exclude-perf'. (Wang Nan) - 'perf trace' now supports syscall groups, like strace, i.e: $ trace -e file touch file Will expand 'file' into multiple, file related, syscalls. More work needed to add extra groups for other syscall groups, and also to complement what was added for the 'file' group, included as a proof of concept. (Arnaldo Carvalho de Melo) - Add lock_pi stresser to 'perf bench futex', to test the kernel code related to FUTEX_(UN)LOCK_PI. (Davidlohr Bueso) User visible fixes: - Apply --filter to all events in a glob matching, not just the last one. (Wang Nan) Documentation changes: - Document setting '-e pmu/period=N/' in the 'perf record' man page. (Kan Liang) Infrastructure changes: - 'perf probe' code simplifications and movements to separate files. (Masami Hiramatsu) - Fix makefile generation under 'dash'. (Sergei Trofimovich) Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Ingo Molnar

perf strlist: Make dupstr be the default and part of an extensible config parm

2015-07-20T15:13:34Z

So that we can pass more info to strlist__new() without having to change its function signature, just adding entries to the strlist_config struct with sensible defaults for when those fields are not specified. Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-5uaaler4931i0s9sedxjquhq@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf thread_map: Fix the sizeof() calculation for map entries

2015-07-09T15:28:53Z

When we started adding extra stuff per array entry, growing the size of those entries to more than sizeof(pid_t), we had to convert those sizeof operations to the more robust sizeof(map->map[0]) idiom, that is future proof, i.e. if/when we add more stuff to those entries, that expression will produce the new per-entry size. And besides that, we need to zero out those extra fields, that sometimes may not get filled, like when we couldn't care less about the comms, since we don't need those, but since we will try freeing it at thread_map__delete(), we better fix it. That is why a thread_map__realloc() was provided. But that method wasn't used in thread_map__new_by_uid(), fix it. Reported-by: Ingo Molnar Fixes: 792402fd5c0a ("perf thrad_map: Add comm string into array") Fixes: 9d7e8c3a96e5 ("perf tools: Add thread_map__(alloc|realloc) helpers") Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-6a0swlm6m8lnu3wpjv284hkb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf thrad_map: Add comm string into array

2015-06-26T14:07:01Z

Adding support to hold comm name together with pids in 'struct thread_map'. It will be useful for --per-thread option to display task pid together with task name. Adding thread_map__read_comms function that reads/set comm string for the 'struct thread_map'. Getting the task name from /proc/$pid/comm. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1435310967-14570-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf thread_map: Introduce thread_map__reset function

2015-06-26T14:03:41Z

We need to reset newly allocated 'struct thread_map_data' entries, because we will introduce new comm memeber, which will get set later or not at all. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1435310967-14570-2-git-send-email-jolsa@kernel.org [ Use sizeof(map->map[0]) to be independent of the array entry type ] Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add reference counting for thread_map object

2015-06-25T18:15:50Z

Adding reference counting for thread_map object, so it could be easily shared among other objects. Using thread_map__put instead thread_map__delete and making thread_map__delete static. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1435012588-9007-5-git-send-email-jolsa@kernel.org [ Adjustments to move it ahead of the "comm" patches ] Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Future-proof thread_map allocation size calculation

2015-06-25T18:15:49Z

Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/20150625174840.GH3253@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf thread_map: Don't access the array entries directly

2015-06-23T21:21:44Z

Instead provide a method to set the array entries, and another to access the contents. Signed-off-by: Jiri Olsa Cc: Adrian Hunter Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1435012588-9007-2-git-send-email-jolsa@kernel.org [ Split providing the set/get accessors from transforming the entries structs ] Signed-off-by: Arnaldo Carvalho de Melo