perf sched: Import schedbench.c

Import the schedbench.c tool that i wrote some time ago to
simulate scheduler behavior but never finished. It's a good
basis for perf sched nevertheless.

Most of its guts are not hooked up to the perf event loop
yet - that will be done in the patches to come.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 10 insertions, 8 deletions

diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 629e602d9405..16cf2d51c4e1 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -1799,7 +1799,7 @@ static int get_common_info(const char *type, int *offset, int *size)
         return 0;
 }
 
-static int parse_common_type(void *data)
+int trace_parse_common_type(void *data)
 {
         static int type_offset;
         static int type_size;
@@ -1832,7 +1832,7 @@ static int parse_common_pid(void *data)
         return read_size(data + pid_offset, pid_size);
 }
 
-static struct event *find_event(int id)
+struct event *trace_find_event(int id)
 {
         struct event *event;
 
@@ -2420,8 +2420,8 @@ get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func,
         int type;
         int pid;
 
-        type = parse_common_type(next->data);
-        event = find_event(type);
+        type = trace_parse_common_type(next->data);
+        event = trace_find_event(type);
         if (!event)
                 return NULL;
 
@@ -2502,8 +2502,8 @@ print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec)
         int type;
         int i;
 
-        type = parse_common_type(ret_rec->data);
-        ret_event = find_event(type);
+        type = trace_parse_common_type(ret_rec->data);
+        ret_event = trace_find_event(type);
 
         field = find_field(ret_event, "rettime");
         if (!field)
@@ -2696,9 +2696,9 @@ void print_event(int cpu, void *data, int size, unsigned long long nsecs,
         nsecs -= secs * NSECS_PER_SEC;
         usecs = nsecs / NSECS_PER_USEC;
 
-        type = parse_common_type(data);
+        type = trace_parse_common_type(data);
 
-        event = find_event(type);
+        event = trace_find_event(type);
         if (!event)
                 die("ug! no event found for type %d", type);
 
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 420294a5773e..bc81612fd244 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -234,6 +234,8 @@ extern int header_page_data_offset;
 extern int header_page_data_size;
 
 int parse_header_page(char *buf, unsigned long size);
+int trace_parse_common_type(void *data);
+struct event *trace_find_event(int id);
 
 void read_tracing_data(struct perf_counter_attr *pattrs, int nb_counters);