From: Adrian Hunter Date: Tue, 22 Jul 2014 13:17:24 +0000 (+0300) Subject: perf tools: Add cpu to struct thread X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=bf49c35f630452d85c9cd7205a72df841e8d99b9;p=openwrt%2Fstaging%2Fblogic.git 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: 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/1406035081-14301-16-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 9692c06a9e21..12c7a253a63c 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -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); diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h index 3c0c2724f82c..716b7723cce2 100644 --- a/tools/perf/util/thread.h +++ b/tools/perf/util/thread.h @@ -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 */