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Commit bf49c35f authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
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perf tools: Add cpu to struct thread 



Tools may wish to track on which cpu a thread is running.  Add 'cpu' to
struct thread for that purpose.

This will be used to determine the cpu when decoding a per-thread
Instruction Trace.

E.g: Intel PT decoding uses sched_switch events to determine which task
is running on which cpu.  The Intel PT data comes straight from the
hardware which doesn't know about linux threads.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406035081-14301-16-git-send-email-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 1f625b0b

tools/perf/util/thread.c

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ struct thread *thread__new(pid_t pid, pid_t tid) 
		thread->pid_ = pid;

		thread->tid = tid;

		thread->ppid = -1;

		thread->cpu = -1;

		INIT_LIST_HEAD(&thread->comm_list);



		comm_str = malloc(32);

tools/perf/util/thread.h

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ struct thread { 
	pid_t			pid_; /* Not all tools update this */

	pid_t			tid;

	pid_t			ppid;

	int			cpu;

	char			shortname[3];

	bool			comm_set;

	bool			dead; /* if set thread has exited */